JP2002369385A - Power transmission control system, power reception control system and power transmission and reception control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power transmission control system and power reception control system capable of automatically collecting consumed quantity of electricity, selecting and using low-cost electric power, and obtaining an electric charge system that makes it possible to balance demand and supply by transmitting required power when power shortage occurs. SOLUTION: An electric power control center 8 transmits a current electric rate unit price to each of electricity consumers 3A, 3B. The electricity consumers 3 transmits the data of time and consumed quantity of electricity to the control center 8 via channels 4 including the Internet. When transmitted electric energy is determined short from the data of the consumed quantity of electricity, the control center 8 stops the use of electric appliances based on the information of the order of stopping the use of the consumer 3A, 3B in accordance with the shortage of the energy amount. When the transmitted electric energy still lacks, additional electric power is purchased to cover the power shortage. The electric rate for the transmitting time of the additionally purchased power is calculated and settled in accordance with the consumed quantity of electricity of the consumers 3A, 3B who have used it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission management system and a power reception management system that enable an electric consumer to receive power transmission at lower cost.

[0002]

2. Description of the Related Art Conventionally, a power sales company transmits electric power to an electric consumer such as a general household, a business, or a public organization, and the electric consumer operates the installed electric equipment by this electric power transmission. When a power sales company bills electricity usage fees, a specialist meter reader patrols the demand equipment of each consumer, measures the installed transaction meter, and uses the metering results based on the meter reading results. Has been charged.

[0003] However, in such a conventional method of billing the usage fee, not only the labor cost of the meter reader is increased, but also the fee may be charged based on an erroneous meter reading result report because it depends on human hands. There was a problem. Suburbs and mountains,
In areas where demand facilities are scattered, such as islands, the cost of meter reading per electric customer is further increased. In addition, large-scale customers, such as businesses and public institutions, also have high meter reading costs due to scattered facilities for demand. That is, in the case of such a large electricity consumer, a power integrator is provided for each department and facility, despite being the same electricity consumer, and all these power integrators are used. Since the meter reader has to read the meter, there is a problem that the labor cost is further increased.

On the other hand, in the European and US electric power markets, the liberalization of purchased electric power has been introduced, and inexpensive electric power, which can be said to be a lifeline of a social infrastructure, can be purchased to activate economic activities. In Japan, it has been decided that the liberalization of the power market will be promoted as a result of the recent deregulation, and a free power market will be formed in the near future.

[0005] The electricity market includes seasons, weather, holidays (day of the week),
It is desirable to have an electricity rate system in which electricity rates vary according to the supply and demand balance according to all parameters such as time zone and location. Therefore, these electric power markets require a system for measuring the amount of electricity and adjusting the bill of electricity in cooperation with the parameters. For example, on holidays, the power consumption of office and factory areas for office workers decreases significantly. The time period in which the surplus power is generated should be inexpensive, and the time period in which the power is insufficient should be high in the electricity rate.

A conventional charge system based on supply and demand balance is as follows:
There is a time zone restriction system that lowers the price of late night hours. In water heaters and the like that use this system, a separate power integrator for late-night charges with a timer function is installed to distinguish charges.

[0007] Such a conventional tariff system cannot cope with a variable tariff system that is divided into a large number based on the supply and demand balance of the season, month, day, time zone, location and the like corresponding to the future power market. In limited areas, such as large customers, the problem is being solved by continuous measurement and recording of the amount of electricity.However, the electricity market for general consumers is not open, The measurement of electricity consumption and fees have not been realized due to the development of infrastructure.

[0008]

Therefore, the power market is released, and the amount of consumed electricity can be measured without manual operation at predetermined time zones, so that the consumer can select and use inexpensive power. There is a demand for the development of a system in which an electricity consumer can select and use necessary electric power even in the case of hourly charge system and power shortage.

The present invention has been made in view of the above-mentioned circumstances, and enables a power management center to measure the amount of power consumption per hour without manual operation, and allows an electric consumer to select and use inexpensive power. It is also necessary to provide an electric power transmission management system and an electric power reception management system capable of transmitting necessary electric power even in the event of a power shortage, and obtaining an electricity bill corresponding to a supply-demand balance when viewed as a whole system. Aim.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a power transmission management system having the following configuration. That is, the power transmission management system according to claim 1 is a power transmission unit that transmits power from the power management center to each power consumer contracted for power transmission, and a time transmission to each power consumer who is transmitting power from the power management center. Electricity price unit transmission means for transmitting the electricity price unit data associated with the band via a communication path such as the Internet; and time data for each predetermined time transmitted from each electric consumer via the communication path. Power consumption data receiving means for receiving power consumption data, and power consumption data storage means for storing the received time data and power consumption data from each of the power consumers in the power management center. It is characterized by comprising.

According to the power transmission management system of the first aspect, the amount of electricity consumed by each electricity consumer can be collected without manual operation, and an electricity bill system corresponding to the supply and demand balance can be obtained. Since the power consumption information is transmitted at each time, it is possible to cope with a different electricity bill system at each time, and it is also possible to cope with a flexible electricity bill system required by the electric power market.

A power transmission management system according to a second aspect of the present invention is the power transmission management system according to the first aspect, wherein time data and power consumption data of each electric consumer stored in the power consumption data storage means are read out, And a usage fee storage unit for calculating and storing the power usage fee of each electric consumer based on each time data.

[0013] According to the power transmission management system of the second aspect, it is possible to use the used power of different fee systems for each time zone. Further, even when the power is insufficient, necessary electric power is transmitted and an electric bill system corresponding to the supply and demand balance can be obtained.

According to a third aspect of the present invention, there is provided an electric power receiving management system, comprising: a power receiving means for an electric consumer to receive the electric power transmitted from the electric power managing center; and the electric power receiving center transmitted from the electric power managing center via a communication path such as the Internet. Receiving means for receiving the electricity rate unit price data associated with the power time zone; and consumption for transmitting the time data and the electricity consumption data from the electricity consumers as the electricity consumption data of the electricity to the power management center. And electric quantity data transmission means.

According to the power receiving management system of the third aspect, it is possible to select and use inexpensive power, and to obtain an electricity tariff system corresponding to the supply and demand balance. Since the power consumption information is transmitted at each time, it is possible to cope with a different electricity bill system at each time, and it is also possible to cope with a flexible electricity bill system required by the electric power market.

According to a fourth aspect of the present invention, in the power receiving management system according to the third aspect, the unit price of the electric power transmitted from the power management center is displayed to an electric consumer,
It is characterized in that electricity consumers can use inexpensive electricity.

According to the power reception management system of the fourth aspect, inexpensive power can be selected and used.

According to a fifth aspect of the present invention, there is provided a power transmission / reception management system for transmitting power to each power consumer contracted by the power management center to each power consumer, and Means for transmitting an electricity rate unit price associated with a time zone through a communication path such as the Internet, and transmitting the time data and the power consumption data at predetermined times from each electric consumer. Power consumption data transmission means for transmitting to the power management center via a road,
A power consumption data storage means for storing in the power management center each time data and power consumption data received from each of the power consumers.

According to the power transmission / reception management system of claim 5, it is possible to collect the power consumption of each electric power consumer without manual operation, to select and use inexpensive power, and to meet the power supply / demand balance. A system can be obtained. Since the power consumption information is transmitted at each time, it is possible to cope with a different electricity bill system at each time, and it is also possible to cope with a flexible electricity bill system required by the electric power market. Further, by using the former two-way communication path, it is possible to manage information on the amount of electricity and electricity rates, and aggressive control operations on the amount of electricity consumed for energy saving.

According to a sixth aspect of the present invention, there is provided a power transmission / reception management system, comprising: a power transmission means for transmitting power to each power consumer contracted for power transmission from a power management center; and an electric device capable of stopping use when the power transmission power is insufficient. A use stop information storage unit that stores in advance the use stop information in the power management center and the electric consumer, and time data and electric power consumption data at each predetermined time from each electric consumer via the communication path. Power consumption data transmitting means for transmitting the power consumption data to the power management center, storing the time data and the power consumption data received from each of the power consumers in the power management center, When the management center determines that the amount of transmitted power is insufficient, the management center reads the stoppage information of each electric power consumer and stops the use of the electric device for the insufficient power based on the stoppage information. And characterized by being provided with a usage termination means for.

According to the power transmission / reception management system of the present invention, even when a power shortage period occurs, each power consumer cooperates to stop power transmission for electric equipment that can be used outside of that time. Thus, stable power supply can be realized.

According to a seventh aspect of the present invention, in the power transmission / reception management system according to the fifth or sixth aspect, when the power management center detects a shortage of the transmission power amount, the power management center transmits the power stoppage information to the use suspension information. And a transmission unit for transmitting a usage stop command of the electric device based on the usage request to each electric consumer via the communication path.

According to the power transmission / reception management system of the present invention, when the power transmitted by the power management center is insufficient, the power management center can stop the power transmission to the electric equipment of each electric consumer registered in advance. Therefore, power shortage can be avoided, and it is possible to use medical equipment and refrigerators that do not want to stop power transmission.

The power transmission / reception management system according to claim 8 is the power transmission / reception management system according to claim 5, 6 or 7,
6. The use stop information, wherein a power stop order of an electric device capable of stopping power transmission when the amount of transmitted power is insufficient is information stored in a use stop order storage unit of the power management center. Power transmission management system.

According to the power transmission / reception management system of the eighth aspect, when the power transmitted by the power management center is insufficient, the power management center stores the respective power demands registered in advance in the use stop order from the use stop order storage unit. Since power transmission to home electrical equipment can be stopped, shortage of power can be avoided, and it is possible to use medical equipment and refrigerators that do not want to stop power transmission.

According to a ninth aspect of the present invention, there is provided the power transmission / reception management system according to the fifth, sixth, seventh or eighth aspect, wherein the means for stopping the use of the electric device based on the usage stop information is provided from each of the power management centers. It is characterized by non-conduction control of a power transmission circuit to a predetermined electric device of a consumer.

According to the power transmission / reception management system of the ninth aspect, when the power transmitted from the power management center is insufficient, the power transmission from the power management center to the electric equipment of each consumer can be stopped and controlled. Power can be stably supplied to electric equipment that cannot absolutely stop power transmission to each electric consumer.

According to a tenth aspect of the present invention, in the power transmission / reception management system according to the fifth, sixth, seventh, eighth, or ninth aspect, the power management center transmits from each of the power consumers via the communication path. Receiving and storing the power consumption data, the use suspension information and the time data of the electric equipment, and reading and transmitting the information based on a request from the electric consumer.

According to the power transmission / reception management system of the tenth aspect, since the stoppage information of the electric equipment is transmitted from the electric consumer, there is no contention for unnecessary and urgent stoppage of the transmission of electric equipment. Inexpensive power can be used.

In the power transmission / reception management system according to claim 11, in the power transmission / reception management system according to claim 5, the use of the electric device is stopped based on the use stop information. When the power is insufficient, the additional power is purchased and the insufficient power is transmitted, and the electricity bill during the additional power transmission time is calculated and settled by calculating the electricity rate according to the amount of electricity consumed by the consumer. Means.

According to the power transmission / reception management system of the eleventh aspect, the additional power is expensive, but it is relatively inexpensive because it is shared and paid only by the users of the electrical equipment that cannot stop the absolute power transmission. Can be supplied.

[0032]

Next, an embodiment of a power transmission management system according to the present invention will be described with reference to FIG. This embodiment is a power transmission management system in which an electric consumer can select and purchase inexpensive electric power, and when the amount of transmitted electric power is insufficient, each electric consumer stops using unnecessary and urgent electric equipment. It is. The power transmission management system is composed of power supply companies A 1A and B 1B owning a power plant, a power sales company 2 that purchases transmission power from power supply companies A 1A and B 1B, and a power sales company 2 Each of the power consumers 3A and 3B, who have made a power transmission contract, is communicably connected to each other via a communication path 4 such as the Internet.

Each of the power supply companies A 1A and B 1B has a power plant, and is connected to each of the electric customers 3A and 3B contracted with the power sales company 2 by a transmission line. To supply power. Each power supply company A company 1A, B company 1B
Transmits the time data from the clock units 5A and 5B and the sales power amount information 6 and 6 to the power sales company 2 via the servers 7A and 7B and the communication path 4 for each time. Each power supply company A company 1A,
Company B 1B makes a power transmission contract with power sales company 2. The total amount of transmission power purchased by the power sales company 2 is based on season, day of week, weather, morning,
Depends on parameters such as day, night, midnight, etc. In a time zone in which the total transmitted power is small, the power fee is low, and in a time zone in which the total transmitted power is large, the price is high.
Therefore, the electric power sales company 2 purchases electric power with a different fee system every time.

The electric power sales company 2 has an electric power management center 8, and calculates and stores the total required electric power at each time from the electric power consumption information applied by the electric power consumers 3A and 3B contracted for the power transmission. The required amount of electricity is stored in the server 9 and the communication path 4.
Order from the power supply company A 1A and the company B 1B.
At this time, the power sales company 2 is the power supply company A 1A, B
Negotiate the price with the company 1B and make a purchase contract.

The information on the amount of consumed electric power applied from each of the electric consumers 3A and 3B prohibits the power transmission stop even at the use time of each electric equipment installed in each electric consumer 3A and 3B or at the time of power shortage. This is power consumption prediction information of an electric device or the like. The electrical devices that prohibit power transmission stop are electrical devices that want to transmit power even if a high fee is paid, such as electrical devices for medical practice and refrigerators.

The electric power sales company 2 calculates the unit price of electric power to be sold to the electric consumers 3A and 3B from the electric power purchase charges purchased from the electric power supply companies A 1A and B 1B based on the above parameters. The unit price information is transmitted to the electric consumers 3A and 3B via the server 9 and the communication path 4 at each time. The transmission of electricity unit price information may be transmitted periodically at predetermined time intervals, or may be transmitted only when the price changes.

The electric power sales company 2 receives and stores the electricity consumption data and the time data transmitted from each of the contracted electric customers 3A and 3B at each time, and stores them in the electric consumers 3A and 3B.
Read and transmit in response to a request from The power consumption data is the power consumption at each predetermined time.
The electric power consumption data and the time data transmitted from the electric consumers 3A and 3B may be transmitted to the electric power sales company 2 at predetermined time intervals, or the electric consumers 3A and 3B may change the charge. In order to predict and select and purchase inexpensive electric power, transmission control may be performed when desired from the electric consumers 3A and 3B.

When the purchased power is insufficient, the power sales company 2 stops the power transmission to the electric equipment according to the usage stoppage order information created by each of the electric consumers 3A and 3B, and the power is insufficient even if the power transmission is stopped. At this time, the power shortage is additionally ordered from the power supply companies A 1A and B 1B, and the additional power charge is negotiated with the power supply companies A 1A and B 1B. That is, when the power consumption of the electric power consumers 3A and 3B increases more than expected and the power becomes insufficient,
Each of the electric customers 3A, 3B based on the use stop order information of the electric equipment registered in advance from each of the electric customers 3A, 3B.
An operation to stop the use of the insufficient amount of electric equipment is performed.

If the transmission power is insufficient even with the cooperation of suspending the use of such unnecessary and urgent electric equipment, the power sales company 2 orders the power supply companies A 1A and B 1B for additional power. I do. The power sales company 2 additionally places an order, and also transmits the unit price of the electricity charge to the electricity consumers 3A and 3B during power transmission for the additional order electricity rate.

The electric consumers 3A, 3B are clock units 11A, 1
1B and the power consumption information processing devices 12A and 12B are provided, and the power consumption data is transmitted from the servers 13A and 13B to the power management center 8 via the communication path 4 in association with the transmission time data. Power consumption information processing devices 12A, 12B
Stores power consumption data and time data, use stop order information attached to all electric devices when transmission power is insufficient, use time information of each electric device, and the like. Via the communication path 4.

Next, the processing contents of the power management center 8 and the power consumption information processing device 12 of each of the electric consumers 3A, 3B, 3C.
The processing contents of A, 12B, and 12C will be described with reference to FIG.

The description of the same parts as those in FIG. 1 will be duplicated, so the same reference numerals will be given and the description thereof will be omitted. The processing content of the power management center 8 receives a schedule of power consumption in the seasons, days, weather, morning, daytime, night, and late night for each of the electric consumers 3A, 3B, and 3C, and inputs the schedule to the computer.

The schedule of each power consumption is shown in Table 3 below.
A table is created by calculating the change over time of the total electric energy of A, 3B, and 3C. This chronological change table is compared with the purchased power to output the presence or absence of a time zone in which the power shortage occurs. Regarding the shortage time zone, 3A
The management of stopping the use of the electric device is performed based on the use stop order list submitted by 3B and 3C. When the power is insufficient even by the measures based on the use suspension order list, the power management center 8 purchases the insufficient power from the power supply companies A 1A and B 1B.

The power consumption information processing devices 12A, 12B, 1
2C transmits power consumption data and time data to the power management center 8 via the communication path 4 such as the Internet for each predetermined time period. Further, with respect to the electric equipment whose use can be stopped when the power is insufficient, the use stop order is created and transmitted to the power management center 8 via the communication path 4. Furthermore, each electric consumer 3A, 3B, 3C
Creates a timetable for each electrical device they own,
The data is transmitted to the power management center 8 via the communication path 4.

FIG. 3 is a system configuration diagram of the power management center 8.
Shown in 1 will be described with the same reference numerals. The power management center 8 performs management for performing stable power transmission to the contracted electricity consumers 3A and 3B. The electricity management center 8 includes a customer information storage unit 21, a purchased electricity amount information storage unit 22, and a management unit. An arithmetic processing unit 23;

The consumer information storage unit 21 is a semiconductor memory such as a RAM or a recording medium of a hard disk. This recording medium includes transmission time setting data 21A,
Electricity consumption data 21B measured at each time sent from the electric quantity measuring units installed in the electric consumers 3A and 3B.
And usage information data 21C in which the usage method of the electric equipment installed in each of the electric consumers 3A and 3B is set, electric equipment power consumption schedule data 21D, use stop order setting data 21E in case of power shortage, use Price data 21F
And a customer information database such as the fee system data 21G.

The transmission time setting data 21A transmits to the power management center 4 the power consumption communication time data of the electric appliances used in the electric consumers 3A and 3B.
The power consumption communication time data is data such as time, communication mode, and communication time.

The electric power consumption data 21B is data in which the electric power consumption of each electric consumer 3 corresponds to the consumption time.
For example, this data exemplifies power consumption data of one electric consumer 3 at predetermined 10-minute intervals from morning to midnight.

The usage information data 21C is stored in each electric consumer 3
A, 3B are data indicating the consumption patterns, such as the names of the electric devices, the use form, the amount of consumed electricity, and the use time, used by each of the electric devices.

Electrical equipment power consumption schedule data 21
D is a power consumption schedule estimated over time from data indicating the use time and the amount of power consumption for each electric appliance that is expected to be used daily by the electric consumers 3A and 3B, for example, on a regular basis. Data. This schedule data indicates the use time zone of each electric device.

Usage stop order setting data 21 when power is insufficient
D indicates that each power consumer 3
A and 3B have been created and submitted in advance, and are order information that allows the power management center 8 to automatically stop operation according to the power shortage. The lack of power is caused by unexpected power shortage within a day.
This is a case where the air conditioner is operated in many electric consumers 3 due to sudden cold or hot weather.

In this embodiment, the use restriction level 0 is a level at which the power management center 8 first stops power transmission when a power supply shortage occurs, and indicates that the higher the number, the lower the operation stop order. I have. This order is a means for avoiding an additional order from the power supply company 1 as much as possible, and is a means for each of the electric consumers 3A and 3B to effectively use inexpensive electric power. Therefore, the electric equipment having the maximum number of the usage restriction level is an electric equipment which must not be stopped. If the power is still insufficient even if such means are implemented, the power management center 8 sets the power supply company A
The company 1A and the company B are additionally ordered and a purchase contract is made.

Since the purchase price of the additional order is high due to the sudden order, the user of the electric equipment having the maximum number of the usage restriction level pays the expensive power by sharing it according to the power consumption. . In other words, if the user does not want to stop the operation even if he pays a high power, he or she designates a use restriction level with a large number. The electric power consumers 3A and 3B who want to make the power rate as low as possible may set the use restriction level of the electric equipment with large power consumption to a low level. This usage restriction level is set to a usage restriction level at which each of the electric consumers 3A and 3B is accepted in response to a power consumption reduction request from the power management center 8 when transmission power is insufficient for stable operation of the power system. Is what you do.

The usage fee data 21F indicates that each electric consumer 3
It shows the details of the amount of electricity consumed corresponding to each of the fee systems A and 3B, and is data such as an unscheduled excess electricity amount, an unscheduled reduced electricity amount, and a usage fee.

The charge system data 21G indicates that each electric consumer 3
Regarding the amount of power consumption A and 3B, this is usage fee system data that systematically reserves electricity, consumes a certain amount of electricity, and charges when usage is restricted.

The purchased electricity information storage unit 22 stores, for example, RA
M and a recording medium of a hard disk. This recording medium stores a purchased electricity amount information database classified according to the contents of electricity purchased by the electric power sales company 2 from the electric power supply companies A Company 1A and B Company 1B which are electric power markets. This purchased electricity amount information database includes purchased electricity fee system data 22A, contracted electricity amount actual data 22B, received electricity amount actual data 22C, consumed electricity amount prediction parameter data 22D, and the like.

The price system data 22A of the purchased electricity is data such as transaction conditions (menu) with the power supply companies A 1A and B 1B to which the power sales company 2 has made a purchase contract, and unit price of electricity. is there.

The contracted electricity amount actual data 22B includes the contracted transaction conditions (menu) with the power supply companies A 1A and B 1B with which the electric power sales company 2 has contracted the purchase of electricity, and the unit price of electricity. Data.

The received electricity amount actual data 22C indicates that the electric power sales company 2 has the electric power supplier A company 1
This is the actual data of the amount of electricity traded with companies A and B 1B.

[0060] Power consumption prediction parameter data 22D
If electricity sales company 2 creates a plan to purchase electricity,
It shows parameters for estimating the amount of consumed electricity.

The management / arithmetic processing unit 23 controls the consumer information storage unit 21 and the purchased electricity information storage unit 22 in an integrated manner.
It performs predetermined data communication and calculation / setting and management functions of related information, and is realized by a computer as a typical embodiment. The management / arithmetic processing unit 23 includes a customer data transmission / reception control unit 25 and a power purchase data transmission / reception control unit 26
A transmission time setting data control unit 27, a power usage charge calculation unit 28, a demand prediction data calculation unit 29, a sales electricity rate system determination unit 30, a usage restriction level determination unit 31,
And an electric equipment use restriction level transmission unit 32.

The consumer data transmission / reception control unit 25 has a control function of performing data communication with the power consumption information processing device 12 installed in each electric consumer 3 via the communication path 4 such as the Internet. The customer information is stored in the customer information storage unit 2
1 is stored.

That is, the consumer data transmission / reception control unit 25
Transmission time setting data 21A to be transmitted to the power consumption information processing device 12, electric device power consumption schedule data 21
D, usage fee data 21F, fee structure data 21G, variously measured power consumption data 21B at each time transmitted from the power consumption information processing device 12, and each consumer 3
Usage information data 21C of electrical equipment installed in A and 3B
And the like are classified and written for each electric consumer 3, read control is performed as needed from the consumer information storage unit 21, and transmitted to the electric consumers 3 </ b> A and 3 </ b> B.

The power purchase data transmission / reception control unit 26 controls data exchange with the power supply companies A 1A and B 1B, which make power purchase contracts, via the communication path 4 such as the Internet. The information storage unit 22 is controlled to store and read the purchased electricity amount information. The purchased electricity amount information is various data for purchasing electric power with the power supply companies 1A and 1B. The various types of data include purchased electricity rate system data 22A, contracted electricity actual data 22B, and received electricity actual data 22 stored in the purchased electricity information storage unit 22.
C, power consumption prediction parameter data 22D which is a power consumption prediction, and the like.

The power management center 8 reads various data stored in the purchased electricity information storage unit 22, exchanges data with the power supply companies A 1A and B 1B via the communication path 4 and negotiates a charge. Buy electricity. The power management center 8 can determine which power supply company will not impose a burden on the power transmission equipment by correctly knowing the specific usage mode (consumption mode) of all contracted power consumers. You. Such a method of purchasing electric power can be used without exceeding the use frame of the power transmission equipment, and can predict (prevent) a wide-area blackout currently occurring in California.

The transmission time setting data control means 27 controls a large number of consumers 3 via a communication path 4 such as the Internet.
A control is performed to store and read out the transmission time setting data 21A in which the time, amount or order in which the data such as the electricity consumption data is transmitted from A and 3B is stored in the customer information storage unit 21.

The power management center 8 and each of the electric customers 3A, 3
In communication with B through the communication path 4 such as the Internet, data is transmitted from different environments for each of the electric power consumers 3A and 3B. For this reason, the data communication processing includes a limitation on the communication speed, a limitation on the capacity of the communication path 4, a limitation on the use time of the communication path 4, and the like.
It is necessary to perform control according to each environment. This data communication process requires similar control on the power management center 8 side that receives data. For example, the power management center 8 avoids an overflow in data processing due to a large amount of data being transmitted at a time, and distributes the load so that accurate data processing can be performed.

The power usage charge calculation unit 28 reads out data such as the charge system data 21G and the power consumption data 21B set separately for each of the electric consumers 3A and 3B from the consumer information storage unit 21. , Each electric consumer 3A,
The usage fee is calculated based on the power consumption data 21B transmitted from the power consumption information processing device 12 of 3B. The calculated usage fee data 21F is stored in the customer information storage unit 21.

The electric power consumption data transmitted from each of the electric consumers 3A and 3B is measured at predetermined time intervals and is electric power data with the measurement time (time stamp). This time information determines the unit price of the electricity bill.
Since the power management center 8 purchases the power rates purchased from the power supply companies A 1A and B 1B under different time periods, the power management center 8 supplies the power consumers 3A and 3B every hour. Electricity consumers 3A and 3B can select and use inexpensive electric power by setting and transmitting different fee systems. The time zone is a unit of time different in purchase amount according to purchase conditions from the power supply companies A 1A and B 1B in units of hours, minutes, and seconds.

The unit price information of the power rate is stored in the power management center 8.
Is transmitted to each consumer 3 constantly or intermittently. The transmission service of the unit price information of the electric power rate enables the electric consumers 3A and 3B to select and use the electric power at a time when the electric power rate is low. Therefore, the electric customers 3A and 3B transmit the power consumption data to the power management center 8 at predetermined unit times. The actual usage charge from the power management center 8 is calculated by adding up the usage charges calculated in this way on a daily basis and billing on a monthly basis.
Will be settled.

The demand prediction data calculation unit 29 reads out and calculates the usage information data 21C and the electric device power consumption schedule data 21D transmitted from each of the electric customers 3A and 3B and stored in the customer information storage unit 21. Demand is calculated from an electricity consumption curve created based on the created application electricity consumption curve and the past received electricity actual data 22C of each electricity consumer 3 that matches the electricity consumption prediction parameter data 22D. Predict power.

The sales electricity amount fee system determining unit 30 stores the past received electricity amount actual data 2 from the purchased electricity amount information storage unit 22.
2C, the charge system data 22A and the contracted electric power record data 22B of the purchased electric power determined by the electric power supply pattern and its form according to the sales contract with the electric power purchaser are read, and the demand forecast data calculator 29 reads the next day. The generated electricity bill is calculated, and the cost is redistributed with weighting for each menu of the selling electricity bill to determine the electricity bill. Further, the demand forecast data calculation means 29 creates demand forecast data by performing a comparison such as reflecting the results of purchase / sales results of the previous day and performing correction or the like.

The usage restriction level judging section 31 reads out the usage information data 21 C transmitted from each electric consumer 3 and stored in the consumer information storage section 21, and reads the usage information data 21 C.
C, the power consumption information relating to the electric equipment whose power use time and power use mode are determined in advance, and the difference or the generated penalty (bonus) between the contracted power actual data 22B and the demand forecast data calculator 29 are minimized. Electric power consumption schedule data 21D such as the use time and the use form for the electric equipment of each of the electric consumers 3A and 3B so as to limit the electric power to the maximum (maximum), and determine the possibility of the power shortage. .

Further, when there is a possibility that a power shortage will occur, the usage restriction level determining unit 31 uses the electric power consumers 3A and 3B stored in the customer information storage unit 21 when the power is insufficient. The control for reading the stop order setting data 21D and stopping the operation of the operating electric devices corresponding to the amount of insufficient power in the order of the use stop order is performed by the electric device use restriction level transmitting unit 32, the consumer data transmission / reception control unit 25, and the communication path. The power is transmitted to each of the electric consumers 3A and 3B via the power supply 4 to realize stable power supply.

The electric equipment use restriction level transmission section 32 aims at the stable operation of the electric power system and the stabilization of the electric power handled by the electric power sales company 2. Based on the use stop order setting data 21D at the time of power shortage submitted in advance from the customers 3A and 3B, the use restriction information is transmitted to the electric consumers 3A and 3B via the communication path 4 such as the Internet. The use restriction levels are, for example, 10 levels from 0 to 9 as follows.

Level-0 is a use level in which the operation can be stopped freely, such as radio, stereo, and dryer.

Level-1 is a level that can be temporarily stopped, for example, an electric pot, an iron and the like.

Level-2 is a level that can be temporarily stopped, such as TV and video.

Level-3 is a level that can be temporarily stopped, such as a dishwasher and a clothes dryer.

Level-4 is a level that can be temporarily stopped, such as a microwave oven or an electric oven.

Level-5 is a level that can be temporarily stopped, such as a VTR, FAX, personal computer, and the like.

Level -6 is a level that can be temporarily stopped, such as lighting equipment and air purifiers.

Level -7 is a level at which a pause is possible.
If the electricity price rises a little, it is a thing that desires power transmission, such as a washing machine, a bath kettle, and an electric kettle.

The level -8 is a level at which a temporary stop is possible, but is a device for which power transmission is desired even if the electricity charge becomes expensive, for example, a cooling / heating appliance.

Level-9 is a level at which absolute operation cannot be stopped even if the electricity charge is expensive, such as medical equipment and refrigerators.

Such a usage restriction level is freely selected for the electric equipment owned by each electric consumer 3.
The usage restrictions are matched to the usage modes of the power management center 8 and each electric consumer 3. If the power is still insufficient even after this usage restriction, the power management center 8 will use the power supply company A 1
Negotiate with companies A and B via communication path 4 such as the Internet to purchase insufficient power. This purchase power rate is high because it is a sudden additional order.

This purchase price is paid to each of the electric consumers 3A and 3B who have selected a numerical value having a large usage restriction level value, in accordance with the amount of power consumption. Power supply company A company 1
Since the companies A and B 1B and the power management center 8 can accurately grasp the information of these use forms for each electric power consumer 3, the accuracy of the demand prediction data can be further improved.

Further, if the usage restriction level is set higher, the electricity bill is added. If the usage restriction level is set to a small value of zero, the electricity fee will be low. Further, when the use restriction of the electric equipment occurs due to the power shortage, the additional charge of the user of the electric equipment set to the high use restriction level is reduced to the electric consumer 3 whose use restriction is set to the low use restriction level.
A is a system that is returned (cash back) to A and 3B.

Further, since the system of this embodiment can grasp the power consumption of each of the electric customers 3A and 3B almost in real time, when the same company has a plurality of consumption places, for example, factories, it is possible to collectively use all of them. Is possible. For example, assuming that the electric equipment at the factory A is at the usage restriction level 9 and the electric equipment at the factory B is set at the usage restriction level of zero, the payment can be made at both factories. Such communication is performed between the power supply company 1, the power sales company 2, and the electric consumer 3 via a communication path 4 such as the Internet. In this communication, the communication path 4 of the external network and the LAN (Local Area Network) of the internal network are used to prevent the intrusion of illegal packets (viruses) from the outside.
ork) 34 and the Internet connection router 3
5 and an Internet connection firewall 36 are connected.

The Internet connection router 35 transmits a signal input from the Internet connection firewall 36 to the LAN 34 and
Is received and input to the Internet connection firewall 36.

Internet connection firewall 3
6 encrypts transmission / reception data input from various transmission means, and then inputs the encrypted data to the Internet connection router 35. The signal received from the communication path 4 such as the Internet by the Internet connection router 35 is demodulated, decrypted, and reproduced as received data. The received data reproduced in this manner is transmitted to various receiving units 2 via a LAN 34 which is a network of the power sales company 2.
5 and 26 are input.

Next, a specific example of the contents stored in the customer information storage unit 21 will be described with reference to FIGS. Figure 1
The same contents as in No. 3 are described with the same reference numerals.

The contents of the communication time data are illustrated in FIG. 4, and the communication form for transmitting the amount of power consumption of the electric appliance in each of the electric consumers 3A and 3B, the recommended communication time zone, the estimated communication time, and the like are shown in FIG. It is systematically presented data. Such communication time data is stored and registered in the transmission time setting data 21A of the power management center 8.

The contents of the electric power consumption data 21B are shown in FIG. 5, and are data showing the electric power consumption of each electric consumer 3 in a systematic manner corresponding to the consumption time. FIG.
10 electricity consumers 3 from morning till midnight
The power consumption data at minute intervals is illustrated together with the maximum power, the minimum voltage, the average voltage, the maximum voltage, and the average voltage.

The contents of the usage information data 21C are illustrated in FIG. 6, and the usage information, the maximum power consumption, the interval, etc. are used for each of the electric appliances used by the electric consumers 3A and 3B. This is data with contents in which the pattern form is systematically shown.

Electric equipment power consumption schedule data 21
The content of D is illustrated in FIG.
A and 3B are schedule data of power consumption estimated over time from data indicating the use time and the amount of power consumption of each electrical device that is expected to be used regularly, for example, every day. This schedule data indicates the use time zone of each electric device.

Usage stop order setting data 21 when power is insufficient
The content of D is illustrated in FIG. 8. In the case of a power supply shortage, each of the electric consumers 3A and 3B extracts in advance the electric devices that can be used, and ranks the use stop of each electric device. Is systematically indicated as a usage restriction level. The use restriction level is information on the order determined by the electric power consumers 3A and 3B, which can automatically stop the operation of the electric power management center 8 according to the power shortage. In this embodiment, the larger the numerical value is, the lower the use canceling order is, and the numerical value “9” indicates an electric device that cannot be canceled.
The shortage of power supply is caused by sudden occurrence of an unexpected power shortage within one day, causing sudden cold or hot weather, and air conditioners operating at a large number of electricity consumers 3 at once. This is the case. FIG. 8 shows the use stop order, for example, as a use restriction level. The power management center 8 sets the usage restriction level when the electric consumer 3
When the use stop command is transmitted to A and 3B, there is a simple control that the stop can be controlled by transmitting the number of use restriction levels.

The contents of the usage fee data 21F are illustrated in FIG. 9 and show details of the amount of electricity consumed by each of the electric power consumers 3A and 3B in accordance with each fee system. , Unscheduled excess electricity amount, unscheduled reduced electricity amount, and the like are systematically indicated.

The contents of the fee system data 21G are shown in FIG. 10, and the electricity consumption of each of the electric consumers 3A and 3B is calculated in the form of a reservation electricity fee, a certain amount of electricity consumption, and a cooperative fee when the use is restricted. It is data that systematically shows such as.

Next, a specific example of the contents stored in the purchased electricity information storage unit 22 will be described with reference to FIGS.
The same contents as those in FIGS.

The contents of the charge system data 22A of the purchased electricity are illustrated in FIG. 11, and the transaction conditions between the power sales company 2 and the power supply companies A 1A and B 1B with which the electricity purchase contract is made ( Menu) and electricity cost. FIG. 11 systematically shows a usage pattern, a selling price, an unscheduled excess electricity amount, an unscheduled reduced electricity amount, and the like for each fee system.

The contents of the contracted electric quantity actual data 22B are illustrated in FIG. 12, and the electric power sales company 2 has contracted transactions with the electric power supply companies A 1A and B 1B with which the electric power is contracted. This is data that systematically shows electricity cost and the like for each condition (menu). FIG. 12 shows data describing the selling price, the power transmission time, and the power transmission amount for each contract with each power supply company.

The contents of the received electric power actual data 22C are also illustrated in FIG. 12, and the electric power sales company 2 has a contract with the electric power supply companies A 1A and B 1B to purchase electricity. It is actual data of quantity.

The content of the power consumption prediction parameter data 22D is shown in FIG. 13, and when the power sales company 2 prepares a purchase plan for electricity, various parameters for predicting the power consumption are systematically set. It is shown.

Next, the configuration of the electric consumer 3 will be described with reference to FIG. The same components as those in FIGS. 1 to 13 are described with the same reference numerals. The electric consumer side terminal includes an internal communication device 41, a clock unit 11, a power consumption information processing device 12,
An electric quantity measuring unit 42, an electric quantity detecting unit 43, a display unit 44,
An external communication device 45 is provided. The electric consumer 3 uses electricity, and is, for example, a general consumer who uses home electric appliances, a building that requires power, a store that requires a power supply for merchandise, a factory that operates manufacturing machines, and the like. .

The internal communication device 41 is connected to each of the electric consumers 3A, 3
Communication equipment capable of exchanging information with an information terminal such as a personal computer via a LAN line such as an intranet installed in B, a communication network using a power line, or a wireless communication. This information exchange includes, for example, a function of transmitting and receiving data to and from an intelligent electrical device, and a process of transmitting and receiving information related to a use form of the electrical device.

Clock units 11A and 11B are connected to the power management center 8
Power consumption data to be transmitted to the power consumers, required power information of each electric equipment installed in each of the electric consumers 3A and 3B shown in FIGS. 6 and 7, and a usage restriction level at the time of power shortage shown in FIG. Generates time data for transmission, such as data.
As this clock, for example, an atomic clock having a high-precision timekeeping function using atomic resonance is used, and outputs digital information of an accurate time. The power management center 8
Are transmitted from the power consumption information processing devices 12A and 12B, and the clock units 11A and 11B adjust the time. Clock section 11A,
The battery 11B may be provided with, for example, a storage battery as an auxiliary energy source so as not to stop the time function even when a failure such as a power failure occurs.

[0108] The electric quantity measuring section 42 is provided for each electric consumer 3A,
It is a transaction wattmeter, a meter transformer, or the like installed in the 3B power line lead-in unit, measures the amount of electricity consumed from the power system, and outputs it to the electricity amount detection unit 43.

The electricity amount detection unit 43 is based on the electricity consumption data output from the electricity amount measurement unit 42 and
The information is converted into various kinds of necessary electric energy information, and the electric power consumption data creating unit 50 of the power consumption information processing devices 12A and 12B.
Send to When the electricity consumption data creation unit 50 converts the electricity consumption of the electricity consumers 3A and 3B into data and stores it in the electricity consumption data storage unit 51, the electricity consumption data creation unit 50 attaches the time data from the transmission time data reception storage unit 53 to both. The power consumption data transmission control unit 52 transmits the power consumption data to the power management center 8 via the external communication device 45.

The display unit 44 displays the power consumption information processing device 12.
From the power management center 8 and the total data and the charge information from the power management center 8 are always displayed. The display contents are, for example, yesterday's power consumption amounts of the electric power consumers 3A and 3B and the unit price of the currently transmitted electric charge, and this display allows the user to select and use the cheapest time. The display unit 44 is provided with an interface capable of displaying internal setting information of the power consumption information processing apparatus 12 by operating a menu format and push buttons.

The external communication device 45 is a server 13A, 13B that communicates with the power management center 8 installed in the power sales company 2 via the communication path 4 such as the Internet. , A device for transmitting and receiving signals such as usage fee data and electric device usage restriction data.

The power consumption information processing devices 12A and 13B create electricity consumption data and time data to be transmitted to the power management center 8, and use fee data from the power management center 8,
A signal such as usage restriction level data is processed and calculated and managed, and the information is stored and configured by a computer.

[0113] The consumed electricity data creating section 50 adds the various electricity information from the electricity detecting section 43 to the clock sections 11A and 11A.
The power consumption data for transmitting a signal accompanied by the time data from B to the power management center 8 is created and output to the power consumption data storage unit 51.

The power consumption data storage unit 51 stores the power consumption data from the power consumption data creation unit 50,
When there is a transmission request from the power consumption data transmission control unit 52, predetermined storage data is read. Since the data stored in the power consumption data storage unit 51 is accompanied by time data, there is redundancy in terms of the reliability of communication information and data restoration, and there is a communication request again due to poor communication. Retransmission is possible. In principle, transmission of the power consumption data is performed periodically, for example, once every ten minutes as shown in FIG. 5, but it is necessary to perform transmission with a margin due to congestion of the Internet line or poor communication. Can also.

The transmission time data reception storage unit 53 receives and stores the transmission time data transmitted from the power management center 8, and outputs it to the clock units 11A and 11B. Clock section 11
A and 11B compare the time data with the time data of the clock units 11A and 11B to start transmission to the power consumption data transmission control unit 52 and the transmission time data reception storage unit 53 when the transmission time comes. Command.

The power consumption data transmission control unit 52 recognizes the data requested by the power management center 8 according to the transmission command from the transmission time data reception storage unit 53, and stores the data corresponding to this request in the power consumption data storage. The data is read from the means 51 and transmitted to the power management center 8 through the external communication device 45. This transmission data can be displayed on the display unit 44.

The usage fee data receiving unit 54 receives the usage fee data transmitted from the power management center 8, outputs display information to the display unit 44, and uses the usage fee data communication unit 55 and the internal communication device 41. Electric consumer 3A, 3
The information is transmitted to an information terminal 56 such as a personal computer installed in B.
The transmitted usage fee data is stored in an information terminal 5 such as a personal computer.
No. 6 is stored in the usage fee storage unit 56A. The usage fee storage unit 56A is, for example, a semiconductor memory.

The charge system data receiving unit 57 receives the charge system data transmitted from the power management center 8 and displays the data on the display unit 44. The charge system data receiving unit 57 displays the charge system data via the charge system data communication unit 58 and the internal communication device 41. To the information terminal 56. The transmitted fee system data is stored in the fee system storage unit 56B of the information terminal 56 such as a personal computer. The charge system storage unit 56B is, for example, a semiconductor memory.

The usage fee data communication unit 55 processes the usage fee data transmitted from the usage fee data receiving unit 54 and transmits the processed usage fee data to the information terminal 56 such as a personal computer, and stores the usage fee data in the usage fee storage unit 56A. save. This information processing is, for example, a format such as a spreadsheet in which monthly totalization and comparison with data of the same month in the previous year, and usage charge transitions in recent months and weeks are calculated.

The charge system data communication unit 58 processes the charge system data transmitted from the charge system data reception unit 57 and transmits the processed charge system data to the information terminal 56 such as a personal computer. The charge system data is stored in the charge system storage unit 56B. save. This information processing is, for example, a format such as a spreadsheet calculation in which comparison with data of the same month of the previous year, a change in the fee system in recent months or weeks, and the like are calculated.

The electric device power consumption data receiving unit 60 receives the electric device power consumption schedule data transmitted from the power management center 8, and stores the electric device consumption data storage unit 61.
The schedule data is stored and transmitted to the electric appliance consumption setting unit 56C of the information terminal 56 such as a personal computer.

The electric appliance consumption setting section 56C sets the method of using the electric appliances based on the judgment of the economy, convenience, use, etc. of each of the electric consumers 3A, 3B. The setting information is transmitted to and stored in the electric appliance consumption data storage unit 61 via the internal communication device 41. The usage method of the electric device is, for example, the usage form, the contract form, the contract time, the contract electricity amount, and the like in FIGS.

If the usage mode information determined by the electric power consumers 3A and 3B is set to give priority to the usage mode as set by the power sales company 2, a diagram transmitted from the electric device power consumption data receiving means 60. The electric equipment power consumption schedule data as shown in FIGS.
2 is sent. When the electric consumer 3 sets a unique usage pattern, the usage setting unit 56E of the information terminal 56 such as a personal computer creates a partially corrected or unique electric device power consumption schedule data and uses the usage setting data. Confirmation part 6
Send to 2. The partially corrected or unique electric device power consumption schedule data is transmitted to the power management center 8 via the usage method setting data transmission unit 66.

The use restriction level data receiving section 63 receives the use restriction level data transmitted from the power management center 8 as shown in FIG. The received usage restriction level data is transmitted to and stored in the usage restriction level setting data storage unit 64, and is also transmitted to the usage restriction level setting unit 56D.

Usage restriction level setting section 56 of information terminal 56
In D, the usage restriction level of each installed electric device is set based on the economic and convenience determination of each of the electric consumers 3A and 3B. This setting information is transmitted to the use restriction level setting data storage unit 64 via the internal communication device 41 and stored. If the electric consumers 3A and 3B determine that the usage mode set by the power sales company 2 is prioritized, the usage restriction level data received by the usage restriction level data receiving unit 63 is the usage method setting data. Sent to determination section 62. When the electric power consumers 3A and 3B set partially modified or unique use restriction level data in the use restriction level setting unit 56D, the corrected use restriction level data sets the usage method via the internal communication device 41. The data is transmitted to the data determination unit 62.

The usage method setting data determination section 62 sorts and integrates data transmitted from the electric appliance consumption data storage section 61 and the usage restriction level setting data storage section 64. The integrated usage restriction level data is transmitted to and stored in the usage restriction level setting data storage unit 64, and is also stored in the power management center 8 via the usage method setting data transmission unit 66 and the communication path 4. This is fed back to the unit 21.

The usage data transmitter 65 transmits the usage restriction level data and the usage data to the information terminal 56 such as a personal computer via the internal communication device 41. The final usage setting result 56F can be confirmed by the electric consumers 3A and 3B. Further, when a shortage of the transmission power occurs, the usage method data transmission unit 65 outputs a control signal for shutting off a power transmission circuit to each of the electric appliances of the electric consumers 3A and 3B based on predetermined usage restriction level data.

When the power management center 8 issues a high urgency level among the usage restriction level information for stable operation of the power supply system from the power management center 8, the usage method data transmission unit 65 transmits the predetermined electrical equipment. It has a function of transmitting a signal for forcibly interrupting power supply. The control for forcibly shutting down is performed by, for example, each of the electric appliances 70A to 7A in each of the electric consumers 3A and 3B.
The circuit breakers 72A to 72D are connected to the transmission line 71 to 0D, and the circuit breakers 72A to 72D are controlled to be non-conductive by a signal from the usage data transmitting unit 65, thereby selectively stopping the use of the electric equipment. And quick response to stable operation of the power system becomes possible. Circuit breaker 72A
To 72D can be formed by, for example, a relay circuit.

The restriction on the use of the electric devices 70A to 70D is set when the power management center 8
Is a means for requesting cooperation from each of the electric consumers 3A and 3B, and cutoff power is allocated to each of the electric consumers 3A and 3B at a use restriction level. Each electric consumer 3A, 3B
Determines the use restriction level for the cutoff power from the list shown in FIG. 8 submitted in advance, and selectively stops the use of the electric devices 70A to 70D.

In order to restrict the use of the electric equipment 70, the electric power management center 8 may control the circuit breakers 72A to 72D of the electric power consumers 3A and 3B, which stop transmitting power to the electric equipment concerned, by shutting off.

Next, an embodiment of the power supply circuit will be described with reference to FIG. The same parts as those in FIGS.
This is a case in which a power supply contract is made with two power supply companies 1 based on the total power consumption of 3B. The electric power from the two electric power supply companies A and 1B is distributed to the electric consumers 3A and 3B by the transmission line 71 via the purchased electric energy measuring device 80 of the electric power sales company 2.

[0132] Wiring in each of the electric consumers 3A and 3B is made up of circuit breakers 72A to 72D for each electric equipment 70A to 70D, such as electric pots, irons, coolers, floor heaters, TVs, lighting fixtures, refrigerators and the like. It is connected. The circuit breakers 72 </ b> A to 72 </ b> D are circuit breakers that can be turned on and off by a control signal from the usage data transmitting unit 65. Therefore, the power management center 8 of the power sales company 2
Accordingly, it is possible to control whether or not electric appliances provided in each of the electric consumers 3A and 3B can be used.

Next, the power supply method will be described with reference to FIGS.
This will be described with reference to FIG. The electric power sales company 2 recruits electric consumers and contracts with the applied electric consumers 3A and 3B (step 85), and thereafter, the electric power supplying companies A 1A and B 1
B and electric power consumers 3A and 3B are wired with electric power. Each of the contracted electric customers 3A and 3B transmits the use information data such as the use condition of each installed electric device name and the use stop order setting data shown in FIGS. The data is transmitted to the power management center 8 of the power sales company 2 via the communication path 4 (step 86). The power management center 8 stores this content in the customer information storage unit 21 as usage information data 213.

The power management center 8 analyzes and calculates the usage conditions submitted by the contracted all-electricity customers 3 to transmit time setting data 21A, power consumption data 21B, usage fee data 21F for each time, 4, 5, 9 to 12, etc., such as charge system data 21G, electric equipment power consumption schedule data 21D, use stop order setting data 21E when power is insufficient.
Is stored in the customer information storage unit 21. The power management center 8 grasps the use state from these data, and performs adjustment with the corresponding electric power consumers 3A and 3B via the communication path 4 to average the peak power consumption in FIG. From this result, the power sales company 2 negotiates with the power supply company 1 to purchase power (step 87). In this negotiation, since the power consumption varies greatly depending on the season, morning, daytime, night, midnight, time, etc., different rates are negotiated based on these conditions.

The management / arithmetic processing unit 23 of the power management center 8
Calculates the fee system and the unit price of use from the power purchase price and stores them in the customer information storage unit 21, and then transmits them to the respective electrical customers 3A and 3B via the communication path 4 (step 8).
8). The current electricity use unit price is always displayed on the display unit 44 of each of the electric power consumers 3A and 3B. This charge display has an effect that the user can select and use the time when the unit charge unit price is inexpensive for the electric consumer 3 who can spend a relatively long time.

For example, the cheapest time is used for watching television or video. Such a use is effective in averaging and leveling the power consumption from the viewpoint of the power management center 8. Each of the electric customers 3A and 3B transmits the time data and the amount of consumed electricity to the power management center 8 (step 89).

[0137] The power management center 8 is a
0 to monitor the change in the amount of power consumption (step 90),
If the amount of transmitted power is sufficient, it is monitored as normal consumption as planned (steps 91 and 92). At the peak of the power consumption, the transmission power may be insufficient (step 93,
94). This shortage of transmission power can be predicted in advance. According to this prediction method, a prediction characteristic curve of power consumption is obtained from the names of electric devices installed in each of the electric consumers 3A and 3B, their power consumption, their use time, use form, and use time. Are stored as power consumption data 21B and electric equipment power consumption schedule data 21D, and it is possible to predict in advance from this predicted characteristic curve that the transmission power is insufficient.

The first means for avoiding this power shortage is that the power management center 8 can use each electric power demander 3A, 3B as long as it is an insufficient power amount that can be adjusted at the use restriction level submitted in advance. The use restriction level is notified for each of the houses 3A and 3B, and the use of the corresponding electric device is stopped in advance (step 95). As a result (step 96), it is sufficient that the amount of transmitted power is sufficient (steps 97 and 98).

If the power sales company 2 determines that the amount of insufficient power cannot be adjusted at the usage restriction level (steps 99 and 10).
0), calculate the amount of power shortage excluding electrical equipment that cannot stop the absolute power at the usage restriction level -9, make an additional purchase contract with the power supply company A 1A and the company B 1B, and purchase the power shortage ( Step 101). The power management center 8 calculates the unit price of the usage fee based on the number of electric customers 3A and 3B at the usage restriction level -9, transmits the additional purchase amount to each of the electric customers 3A and 3B (step 102), and displays the unit price. The unit price is displayed as the current unit price.

[0140] These usage fees are stored in the usage fee storage unit 56A of the information terminal 56 such as a personal computer. That is, when a high unit price is displayed, the electric power consumers 3A and 3B having set the usage restriction level -9 pay a high usage fee and settle the payment (step 103). At this time, the display unit 4
In No. 4, if the fee is displayed in red color, the user is further alerted. If the cheapest display is a green display and the standard price display is a blue display such as a blue display, it is more effective in dispersing the use of electric power.

Further, the supply and demand balance of the transmission power is monitored (step 104). If the transmission power is sufficient, it is normal (steps 105 and 106), but if the transmission power is insufficient (step 107), additional purchase is made (step 107). Step 10
8, 109). By repeating such a process, all the electric consumers 3A and 3B transmit necessary electric power.

[0142] In the display section 44 of the electric consumer 3, “yesterday's usage” and “current unit price” are shown in FIG. 14, but all information transmitted from the power management center 8 is displayed. May be displayed.

When it is desired to change the use time zone of each electric device, the electric consumers 3A and 3B are connected to the information terminal 5 such as a personal computer.
6 changed to the optimal time zone by the usage method setting unit 56E of FIG.
To data for use method setting data determination unit 6
2. It can be changed by transmitting to the power management center 8 via the usage method setting data transmitting unit 66. Similarly, when the electric customers 3A and 3B desire to change the use restriction level of each electric device, the information terminal 56 such as a personal computer may be used.
The data of FIGS. 6 to 8 changed by the use restriction level setting unit 56D is created, and the use restriction level setting data storage unit 64,
It can be changed by transmitting to the power management center 8 via the usage method setting data determination unit 62 and the usage method setting data transmission unit 66.

Each of the power consumers 3A and 3B transmits power consumption data from the power consumption data transmission control unit 52 to the power management center 8 via the communication path 4 at predetermined time intervals. When the electric power consumption of the electric power consumers 3A and 3B is measured by the electric energy measuring unit 42, converted into data by the electric power consumption data creating unit 50 and stored in the electric power consumption data storage unit 51, the transmission time data reception is performed together. The time data from the storage unit 53 is attached, and transmitted to the power management center 8 via the power consumption data transmission control unit 52 and the external communication device 45.

Transmission of the power consumption data is performed by, for example, 10
Automatically sent every minute. As for the transmission time interval, a short period can detect shortage of transmission power more quickly. The power management center 8 stores the received power consumption data in the usage information data 213 of the customer information storage unit 21.
Is stored separately for each electric consumer 3A, 3B.
That is, the power management center 8 can automatically collect the power consumption of each of the electric customers 3A and 3B without requiring any manpower.

The power management center 8 aggregates the collected data on the amount of power consumption, and when the total of the obtained power consumption exceeds a predetermined value, the power management center 8 sets the specific electric power consumer 3A,
3B via the communication path 4 such as the Internet. In response to the request to reduce the amount of power consumption, the power management center 8 transmits a command to reduce the amount of power consumption by the amount of power shortage via the communication path 4 based on a predetermined usage restriction level list. The control for reducing the power consumption is performed by a plurality of electric consumers 3 via a communication path 4 such as the Internet.
A and 3B can be directly recommended almost simultaneously, so that it is possible to quickly cope with a power supply shortage.

When power shortage occurs, the power management center 8 transmits a use restriction level signal to each electric power consumer 8 and transmits a request to stop use of electric equipment. In this case, the power management center 8 transmits the usage restriction level data receiving unit 63, the usage restriction level setting data storage unit 64, the usage setting data determination unit 62, and the usage data transmission unit 65 of the electric consumers 3A and 3B. The circuit breakers 72A to 72D of the specified electric equipment are controlled to be in the open state. The power management center 8 manages to supply necessary power stably in this way. The power management center 8 and each of the electric consumers 3A and 3B are connected to a communication path 4 such as the Internet.
Is communicated via
The families A and 3B3 can control the opening and closing of the power supply of the electric equipment provided on the Internet from outside.

The setting of the use restriction level data is performed for the following purposes. Electricity sales company 2 is each electric consumer 3
If A and 3B are the initially planned amounts of power consumption, they are purchased from the power supply company 1 so that the transmission power will not run short. However, if a large number of power consumers 3A and 3B generate a time zone of the consumed power exceeding the schedule, the transmission power becomes insufficient. In this case, each electric consumer 3A, 3B
However, use limit level data is set in order to use power as cheap as possible. In other words, this embodiment foregoes the use of unnecessary and urgent electrical equipment only during the time when power is insufficient, and for electrical equipment that is absolutely necessary, such as medical equipment,
An electric power transmission management system and an electric power reception management system that make it possible to flexibly use relatively inexpensive electricity.

According to the system of each embodiment described above, the charge is varied depending on the results of the cooperation by the use restriction level of each of the electric consumers 3A and 3B and the display of the unit price of electricity in each time zone. Electricity is supplied to each electric consumer 3A, 3B
Can be purchased. Further, energy saving can be promoted by using a relatively inexpensive time with a small amount of electricity consumption. The electric power sales company 2 can collect a charge obtained by applying an appropriate cost to the cost from each of the electric power consumers 3A and 3B based on an appropriate criterion.

Furthermore, since the power management center 8 stores the time data and the power consumption data transmitted from each of the electric customers 3A and 3B, it is possible to make a post-mortem settlement. Further, each of the electric consumers 3A and 3B can use the inexpensive electric power and the expensive electric power separately. Further, the electricity sales company 2 can secure stable profits by calculating the price of electricity actually consumed in units of days, and adding profits to each of the electric consumers 3A and 3B.

[0151]

As described above, according to the present invention, the power management center can measure the amount of power consumption per hour without manual operation, and the electric consumer can select and use inexpensive power, Even in the case of power shortage, necessary power is transmitted, and an electric bill system corresponding to the supply and demand balance can be obtained as a whole system.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram for describing an embodiment of a power transmission management system according to the present invention.

FIG. 2 is a configuration diagram for explaining functions of each terminal in FIG. 1;

FIG. 3 is a system configuration diagram for explaining an embodiment of the power management center of FIG. 1;

FIG. 4 is an explanatory diagram for explaining a time when each electric consumer sends a power consumption status to the electric power management center in FIG. 3;

FIG. 5 is an explanatory diagram for setting an amount of power that changes with time from power consumption data collected by the power management center of FIG. 3;

FIG. 6 is an explanatory diagram of the operation state of each electric appliance of each electric consumer from the electric power consumption data collected by the electric power management center of FIG. 3;

FIG. 7 is an explanatory diagram of the operation time of each electric appliance of each electric consumer from the electric power consumption data collected by the electric power management center of FIG. 3;

FIG. 8 is an explanatory diagram of a use restriction level for each electric appliance of each electric consumer from the electric power consumption data collected by the electric power management center of FIG. 3;

FIG. 9 is an explanatory diagram of a usage state for each usage fee of each electric consumer based on the power consumption data collected by the power management center in FIG. 3;

FIG. 10 is a detailed explanatory diagram of the electricity bill of each electricity consumer based on the electricity consumption data collected by the electricity management center of FIG. 3;

FIG. 11 is an explanatory diagram of a power management center usage state for each usage fee of each electric consumer based on the power consumption data collected by the power management center of FIG. 3;

FIG. 12 is an explanatory diagram of a power management center usage state for each contract type of each electric consumer from the power consumption data collected by the power management center of FIG. 3;

FIG. 13 is an explanatory diagram of power consumption prediction parameter data of FIG. 3;

FIG. 14 is a system configuration diagram illustrating an embodiment of the electric consumer of FIG. 1;

FIG. 15 is a system configuration diagram for explaining an embodiment of the power transmission system in FIG. 14;

FIG. 16 is a flowchart for explaining the power supply method of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electric power supply company, 2 ... Electric power sales company, 3 ... Electricity consumer, 4 ... Communication channel, 5, 11 ... Clock part, 6 ... Electricity sales information, 7, 9, 13 ... Server, 8 ... Electric power management Center, 12
... power consumption information processing device, 21 ... customer information storage unit, 2
2 ... Purchased electricity quantity information storage unit, 23 ... Management / calculation processing unit,
25: consumer data transmission / reception control unit, 26: power purchase data transmission / reception control unit, 27: transmission time setting data control unit, 28 ...
Electricity charge calculation unit, 29: demand forecast data calculation unit, 3
0: Selling electricity rate system determination unit, 31: Usage limit level determination unit, 32: Electric equipment usage limit level determination unit, 34:
LAN, 35: Internet connection router, 36: Internet connection firewall, 41: Internal communication device, 42: Electricity measurement unit, 43: Electricity detection unit, 44 ...
Display unit, 45: external communication device, 50: electricity consumption data creation unit, 51: electricity consumption data storage unit, 52: electricity consumption data transmission control unit, 53: transmission time data reception storage unit, 54: usage fee Data receiving unit, 55: Usage charge data communication unit, 56: Information terminal, 57: Charge system data reception unit, 58: Charge system data communication unit, 60: Electric device power consumption data reception unit, 61: Electric device consumption data storage Department,
62: usage method setting data determination unit, 63: usage restriction level data reception unit, 64: usage restriction level setting data storage unit, 65: usage method data transmission unit, 70: electric device, 7
1 ... transmission line, 72 ... circuit breaker, 80 ... purchased electric energy measuring device.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenfumi Otani 66-2 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa Prefecture Inside Toshiba Engineering Corporation (72) Inventor Katsuhiko Yoshida 66-2 Horikawa-cho, Sachi-ku, Kawasaki-shi, Kanagawa Toshiba Engineering Co., Ltd. (72) Inventor Mitsuhiro Tanamura 66-2 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa Prefecture F-term (reference) 3E047 JA04 KA08 LA02 LA03 5G064 AA07 AB03 AC01 AC03 AC06 AC09 BA01 BA07 CB08 CB11 DA05 5G066 KA01 KA06 KA11 KB06 KB10 KD01

Claims (11)

[Claims] 1. A power transmission means for transmitting power from an electric power management center to each electric consumer contracted for electric power transmission, and a unit price of an electric charge associated with a time zone for each electric consumer who is transmitting electric power from the electric power management center. An electricity rate unit transmitting means for transmitting data via a communication path such as the Internet; and receiving time data and power consumption data at predetermined times transmitted from each electric consumer via the communication path. Power consumption data receiving means, and power consumption data storage means for storing the received time data and power consumption data from each of the power consumers in the power management center. And power transmission management system. 2. The power consumption data of each electric consumer is calculated based on the time data and the electric power consumption data of each electric consumer stored in the electric power consumption data storage means. 2. The power transmission management system according to claim 1, further comprising usage fee storage means for storing. 3. An electric power receiving means for an electric consumer to receive electric power transmitted from an electric power management center, and electricity associated with a time zone of the electric power transmitted from the electric power management center via a communication path such as the Internet. Receiving means for receiving unit price data; and electric power consumption data transmitting means for transmitting each time data and electric power consumption data as electric power consumption data of the electric power from each electric consumer to the power management center. A power reception management system, comprising: 4. The electric utility unit according to claim 3, wherein the electricity rate unit price transmitted from the power management center is displayed to an electric consumer so that the electric consumer can use inexpensive electricity. Power receiving management system. 5. A power transmission means for transmitting power from the power management center to each power consumer contracted for power transmission, and an electricity rate unit price associated with a time zone for each power consumer transmitting power from the power management center. An electricity rate unit data transmitting means for transmitting data via a communication path such as the Internet; and a power management center via the communication path for transmitting time data and power consumption data at predetermined times from each electric power consumer. Power consumption data transmitting means for transmitting to the power management center the time data and power consumption data received from each of the electric power consumers. Power transmission and reception management system characterized by the above-mentioned. 6. A power transmission means for transmitting power from a power management center to each of the power consumers contracted for power transmission, and an electric device which can be stopped when the amount of transmitted power is insufficient as the stop information in advance. And a usage stop information storage means for storing in a power consumer, power consumption transmitting time data and power consumption data from each power consumer to a power management center via the communication path at predetermined times. Power data transmission means, power consumption data storage means for storing the received time data and power consumption data from each of the power consumers received in the power management center, and A use stopping means for reading out the use stop information of each electric consumer when judged, and stopping the use of the electric device for the insufficient power based on the use stop information. Power transmitting and receiving management system according to claim Rukoto. 7. The power management center, when detecting a shortage of transmitted power, transmits a command to stop use of electric equipment based on the use stop information to each electric power consumer from the power management center via the communication path. 7. The power transmission / reception management system according to claim 5, further comprising: a use stop command transmitting unit that performs the use stop command. 8. The use suspension information, wherein the power supply suspending order of an electric device capable of suspending power transmission when the amount of transmitted power is insufficient is information stored in a use suspending order storage unit of the power management center. Item 7. A power transmission / reception management system according to item 5, 6, or 7. 9. The electric equipment use stop means based on the use stop information is a non-conduction control of a power transmission circuit from the power management center to a predetermined electric equipment of each electric consumer. The power transmission / reception management system according to claim 5, 6, 7, or 8. 10. The power management center receives and stores the power consumption data, the use suspension information and the time data of electric equipment transmitted from each of the electric power consumers via the communication path, and stores the electric power. 7. The information is read out and transmitted based on a request from a consumer.
The power transmission and reception management system according to 7, 8, or 9. 11. When the power is insufficient even when the use of the electric device is stopped based on the usage stop information, additional power is purchased and the insufficient power is transmitted, and the power usage during the additional purchase power transmission time is used. And a billing means for calculating and billing the electricity rate according to the amount of electricity consumed by the electricity consumer.
The power transmission / reception management system according to 8, 9, or 10.