JP2003087970A - Operating method of co-generation facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adequately operate a co-generation facility by introducing the facility into a collective housing such as a condominium in order to effectively supply electrical power and heat. SOLUTION: A co-generation facility 20 is installed into a condominium complex 10 including a plurality of housings 1, 2, 3 in order to supply the electrical power and heat to the housings 1, 2, 3. A management center 40 performs, based on the commission received, calculation for optimization of the co- generation facility 20, improvement of operation pattern, operation, maintenance and security services, and measurement and charging services. Operations are performed based on the forecasting of power load and thermal load and start, prior to the peak period of thermal load, accumulation of heat by stocking of hot-water into hot-water tank 22. Electrical power operation is conducted up to the rated output and the operation is stopped when heat accumulation corresponding to the total heat load is completed. The co-generation facility 20 can be operated under the high efficiency condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of operating a cogeneration facility installed in a housing complex such as a condominium.

[0002]

2. Description of the Related Art Conventionally, in order to effectively use limited energy resources, a cogeneration technique that generates electricity and uses waste heat as a heat source has been emphasized. The larger the scale of power generation equipment, the higher the efficiency, and the more effective use of energy resources. However, high-efficiency power generation equipment cannot be installed in an area with a very high power demand density, since it has many by-products that affect the surrounding environment even if the efficiency is high. Although heat demand increases with power demand, heat is likely to cause loss and cannot withstand long-distance transportation, so it is difficult to effectively use the waste heat generated by large-scale power generation. is there. If a cogeneration facility capable of generating electricity and supplying heat is installed in a demand area, comprehensive effective use of energy can be achieved.

Conventional cogeneration equipment is installed in offices, commercial areas, factories, hospitals, and other places where there is a certain demand for electric power and heat.
In individual dwelling units, the demand for electric power and heat does not reach the level where profits can be obtained by introducing cogeneration equipment, and commercial power is received and fuel such as city gas is supplied. Generating heat.

In an apartment such as a condominium where a plurality of dwelling units are gathered, there is room for introducing a cogeneration facility for supplying a plurality of dwelling units with electric power and heat. Even if a cogeneration facility is installed to supply electric power and heat, electric power must also be received from commercial electric power and must be connected to the grid to generate electric power. I have to do it. However, in the past, due to legal regulations, collective power reception was permitted only in communal areas such as condominiums, and it was virtually impossible to jointly install cogeneration equipment in multiple dwelling units.

As described above, conventionally, the electric power company individually supplies electric power to the condominium-dedicated section, and the electric power company also performs meter reading work. However, due to deregulation, a cogeneration facility has been introduced into the condominium, and it has become possible to supply power to the dedicated section in combination with collective power reception from the power company.

On the other hand, the operation and operation status of the introduced cogeneration facility has been separately checked by collecting and monitoring data at a remote place through a communication infrastructure such as an information communication network typified by the Internet. Maintenance of cogeneration equipment was also conducted at fixed intervals set in advance.

Further, conventionally, the operation of the cogeneration equipment in the condominium is an operation according to a preset schedule, and the ON time for starting the operation is fixed. That is, when the ON time, which is the time determined by the operation schedule, is reached, power generation and heat supply by the cogeneration facility are started, and according to the schedule, the operation is stopped at the OFF time.

[0008]

As a load pattern peculiar to general households such as each dwelling unit of an apartment, the demand for heat load increases in the morning and at night. If the capacity of the cogeneration facility is selected according to this peak of heat demand, the operating rate will decrease, so a hot water storage tank will be installed to level the load. This leveling is expected to improve the operating rate, but conventionally the operation was started with the ON time fixed, and after that, when the hot water storage capacity became full, the cogeneration was turned off.
It was a driving operation of the owner who FFed. In this case, since it is the owner of electricity, when the power load is small, it was necessary to operate at a low load factor so as to prevent reverse power flow. As a result, cogeneration equipment that extracts both heat and electricity has not always been operated under optimal conditions. Therefore, it is necessary to operate the cogeneration facility under optimal conditions.

[0009] When the electric power company is individually engaged, the electric power company is responsible for security because each dedicated section handles general electric works. When receiving electricity collectively, it is necessary for each dedicated section to secure security as a work product.

Furthermore, it is necessary to follow the operating conditions of the cogeneration equipment and improve the operating rate. However, since the energy usage status and operation status of each customer's dwelling unit are not linked, it was not possible to carry out optimal operation of the cogeneration facility or maintenance plan.

An object of the present invention is to provide a method of operating a cogeneration facility, which can be appropriately operated and can efficiently supply electric power and heat to an apartment house such as a condominium.

[0012]

The present invention is applied to a housing complex including a plurality of dwelling units, supplies electric power in a grid connection with commercial power, and uses waste heat as hot water. That is, a hot water storage tank capable of storing hot water is installed, and the cogeneration facility operates according to a schedule set for each predetermined operation cycle. In setting the schedule, the power load and the heat load in the operation cycle are set. And the amount of heat required at the peak of the heat load, the power load predicted by the main operation of the cogeneration facility while always receiving more than the predetermined amount of power is supplied, and precedes at the peak. The ON time at which the operation of the cogeneration facility should be started is set, and the time when the generation of the total heat quantity predicted as the heat load is completed is set as the cogeneration time. A cogeneration facility operating method characterized by setting the operation of the Deployment equipment as OFF time to be stopped.

According to the present invention, a cogeneration facility for supplying electric power by system interconnection with commercial power and utilizing waste heat as hot water is introduced into an apartment house including a plurality of dwelling units, such as an apartment. A hot water storage tank capable of storing hot water is installed in the cogeneration equipment to be introduced, and the cogeneration equipment is operated according to a schedule set for each predetermined operation cycle. The schedule predicts the electric load and heat load of the operation cycle, and determines the heat quantity required at the peak of the heat load,
The hot water will be stored after starting the operation of the cogeneration facility so that the hot water can be supplied. For the operation of the cogeneration facility, it is assumed that the power load predicted by the main operation that always receives more than a predetermined amount of power is supplied, and the ON time at which the operation should start prior to the peak time is set and predicted as the heat load. The time when the generation of the total heat quantity is completed is set as the OFF time at which the operation of the cogeneration facility should be stopped. Since the cogeneration facility is operated from the ON time to the OFF time when the heat load peaks, the electric power and heat can be efficiently supplied. Since the power load and the heat load are predicted for each operation cycle and a schedule is set, and the cogeneration facility is operated according to the set schedule, appropriate operation can be performed.

In the present invention, the plurality of dwelling units of the collective housing form a management organization for the cogeneration facility, and the management organization collectively receives electric power received from commercial power as the collective housing. In each dwelling unit, one or a plurality of measuring instruments for measuring the amount of electric power and heat used and an earth leakage breaker are installed, and the management organization collects the measured value data of each measuring instrument, While calculating the usage charge for each dwelling unit, while using the measured value data as basic data for predicting the electric load and heat load, while collecting contact information of the earth leakage breaker installed in each dwelling unit. , Is responsible for the security monitoring work required for power usage.

According to the present invention, the plurality of dwelling units of the collective housing form a management organization of the cogeneration facility and collectively receive the electric power received from the commercial electric power. In each dwelling unit, one or more measuring instruments for measuring the amount of electric power and heat used and an earth leakage breaker are installed. The management organization collects the measurement value data of each measuring instrument, calculates the usage charge for each dwelling unit, and uses the measurement value data as basic data for predicting the electric power load and the heat load. While collecting contact information of the earth leakage breaker installed in the dwelling unit,
Perform the security monitoring work required for power use at your own risk.
Multiple dwelling units receive electric power all at once, and it is your responsibility to calculate the usage fee and perform the security monitoring work necessary for using the power, so each dwelling unit receives the power individually and performs meter reading work and security monitoring. It is possible to reduce the unit purchase price of electric power as compared with the case where the electric power company performs the work individually. In order to predict the electric power load and the heat load, the measurement value data measured and collected by one or a plurality of measuring instruments installed in each dwelling unit is used as the basic data, so that the accuracy of the prediction can be improved.

Further, the present invention collects measurement value data of the measuring instrument and contact information of the earth leakage breaker via an information communication network, and uses the collected measurement value data for the electric power load and the heat load. , The operation schedule of the cogeneration equipment is set, operation and maintenance of the cogeneration equipment is performed based on the set schedule, and charge calculation and billing are performed based on the measured value data. Based on the collected contact information of the earth leakage breaker, a management center for dispatching maintenance workers is set up, and the management organization of the housing complex operates the cogeneration facility and conducts meter reading at the management center.・ Characteristics is outsourced.

According to the present invention, the management center collects the measurement value data of the measuring instrument installed in each dwelling unit and the contact information of the earth leakage breaker via the information communication network, and the collected measurement value data. By predicting the electric load and the heat load using the cogeneration equipment, set the operation schedule of the cogeneration equipment, operate and maintain the cogeneration equipment based on the set schedule, and collect the contact points of the earth leakage breaker. Dispatch maintenance workers based on the information. Since the management organization of the housing complex entrusts the management center with the operation of the cogeneration facility and the meter reading / billing, it is not necessary to secure the technical personnel necessary for operating the cogeneration facility. The management center can hire a maintenance worker or the like if a plurality of apartments are used as customers, and can sufficiently perform power security monitoring work in each apartment.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 schematically shows a method of operating a cogeneration facility according to an embodiment of the present invention. A cogeneration facility 20 that is operated jointly is installed in an apartment house 10 such as a condominium 1 that includes a plurality of dwelling units 1, 2, 3, .... The cogeneration facility 20 includes a power generator 21 such as a gas engine, a gas turbine, and a fuel cell that generates electric power by using city gas as a fuel, a hot water storage tank 22 that stores hot water, and a CG that controls the operation of the cogeneration facility. An operating unit 23, and a generated power meter 24 and a received power meter 25 that measure the generated power amount and the received power amount, respectively, are provided. Further, the hot water storage tank 22 is also provided with a hot water storage meter 26 for measuring the amount of hot water storage. The CG operation unit 23 controls the power generation device 21 based on the measurement data from the generated power meter 24, the received power meter 25, and the hot water storage meter 26, so that each dwelling unit 1,
Supply electric power and heat to 2, 3, ....

The received electric power is supplied as commercial electric power from an electric power company or the like via the electric power reception line 27. City gas is supplied via the gas supply pipe 28. Each unit 1,
An electric energy meter 1a, a gas meter 1b, etc. are installed at 2, 3, ..., respectively, and constantly monitor the usage status of energy such as electric power and city gas. Energy usage is
The data is collected by the management center 40 and the data center 50 via the information communication network 30 such as the Internet. Although the management organization such as the management union of the condominium 10 can perform all the collection of measurement data and the operation management work of the cogeneration facility 20, the management center 40
By entrusting the work to the or data center 50, smooth and efficient operation can be performed. The management center 40 and the data center 50 can be installed integrally.

That is, in the cogeneration facility 20 installed in an apartment house such as the condominium 10,
Using the electricity meter 1a or the gas meter 1b, which is a measuring instrument having a pulse transmission function, the energy consumption amount (electric energy amount, heat amount) of each dwelling unit 1, 2, 3 existing in the exclusive section of the condominium is measured and the condominium 10 The operation status of the cogeneration facility 20 installed inside is similarly measured by the power generator 24, the received power meter 25, the hot water meter 26, etc., and data is collected at one location using the information communication network 30 which is a communication infrastructure. The data center 50 center creates a database.

The management center 40 uses the data collected by the data center 50 to cogeneration equipment 2
The operation pattern of 0 is optimally calculated, and based on the result, the operation of the cogeneration facility 20 is fed back (the ON / OFF time is optimized) to improve the operating rate of the cogeneration facility 20. At the same time, since the operation time is predicted, the maintenance plan is not fixed but is performed at an optimum interval.

In addition to the measurement of the energy use status of each dwelling unit 1, 2, 3, an earth leakage breaker and a gas leakage alarm are installed in advance, and an alarm is issued at the time of electricity leakage or gas leakage.
And then collects confirmation data from the management center 40. If a leak or gas leak cannot be dealt with by the resident, a security patrol officer carrying a portable personal computer 60 or the like will be dispatched immediately as a restoration staff.

In measuring the amount of energy used, a watt-hour meter 1a or a gas meter 1b is installed in each dwelling unit 1, 2 or 3 as a measuring instrument having a pulse transmission function, and there is a pulse signal transmitted in accordance with the amount of electric power used. A data logger is used that has the function of collecting the data counted in the sampling time. Further, the operation data of the cogeneration facility 20 is also collected in parallel. By using the communication infrastructure for data collection, the data center 50 can collectively collect data and create a database.

In order to perform optimum calculation at the management center 40,
The equipment system in the condominium 10 is modeled on a personal computer (PC). By referring to the data collected at the time of meter reading, the calculation is performed using the optimum calculation method, and the simulation is performed. In particular, since it is the heat main operation, the ON / OFF time is determined and the schedule operation is updated so as to satisfy the heat demand. Optimize the schedule according to the fluctuation of demand between seasons (days).

The management center 40 predicts the load and optimally operates the cogeneration facility 20 of the apartment house such as the condominium 10 as follows.

The load prediction is performed by a method that has been used conventionally. -Predict using parameters such as calendar and temperature. The electric main operation is performed in response to the load prediction, and all the waste heat generated is stored in the hot water storage tank 22.・ Because the main operation is performed, the constant power receiving operation shall be performed according to the predicted electric load. The hot water storage tank 22 absorbs all fluctuations in the hot water supply load. Therefore, when viewed from the cogeneration facility 20, the hot water storage tank 22 is treated as a constant load. The operation time is selected so that the heat quantity of the predicted heat load is equal to the heat quantity stored in the hot water storage tank 22. -At that time, preferentially select a time zone in which the cogeneration facility 20 can operate with high efficiency.・ Determine the ON time and OFF time based on the selected time zone.・ Issue an operation command to the cogeneration facility 20 based on the planned ON / OFF time. The command may be issued from the scheduler of the cogeneration facility 20 side,
You may issue from the scheduler of the management center 40 side. -Based on the updated schedule, the cogeneration facility 20 will start operation with ON time, and will operate by constant control of received power.・ As the electric power load increases, the output is increased with the received power constant control, and the cogeneration facility 2
Increase to 0 rated output. -After that, the operation is performed at the rated operation, and when the power load becomes small again, the operation is performed at the constant received power control. -Finally, stop the operation according to the schedule with the OFF command.

FIG. 2 shows an outline of a schedule setting procedure of the cogeneration facility 20 performed by the management center 40. The schedule shall be set every day. In step a1, the amount of electric power and the amount of heat are measured and data is collected via the information communication network 30 which is a communication infrastructure. In step a2, the load of the next day is predicted, and the peak time when the heat demand becomes maximum is determined. For example, the load forecast for the next day is performed in accordance with the calendar by adding the weather forecast and the like to the results of the corresponding days up to the previous year. FIG. 3A shows an example of prediction of heat load, and FIG. 4A shows an example of prediction of power load. At step a3, the total heat load for one day is calculated. From FIG. 3A, it is predicted that the heat load reaches a peak at time tp. The total heat load of one day can be calculated as the amount of heat shown by being filled in in FIG.

In step a4 of FIG. 2, as shown in FIG. 3B, the heat load at time tp, which is the peak time, and the time t, which is the ON time at which the heat generation amount before the peak time matches.
Decide 0. In step a5, the electric main operation is performed from time t0 which is the ON time, and the operating time Ti (i = 0) is calculated to cover the total heat load of the day. Generally, the peak time tp is the time from evening to night, and the driving time T
i will take the next day. Since it is the main operation,
As shown in (b), the operation is performed such that the power generation amount becomes smaller than the power load by a constant power amount. However, when the maximum output is reached at time t1, the maximum output is maintained. In step a6, the hot water storage pattern is calculated based on the heat generation pattern as shown in FIG. That is, the hot water storage pattern is expressed by the following equation (1). The predicted consumption pattern is
It can be considered to be equal to the heat load shown in FIG. Hot water storage pattern = Hot water storage amount during ON time + Heat generation pattern-Predicted consumption pattern (1)

In step a7 of FIG. 2, it is determined whether the maximum value of the hot water storage, which is the maximum value in the hot water storage pattern, is smaller than the maximum value that can be stored in the hot water storage tank 22. When it is determined that the maximum hot water storage value is smaller than the maximum hot water storage possible value, the process proceeds to step a11. At step a11, the ON time is advanced. In step a12, as in step a5, O
The main operation is started from N hours, and the operation time Ti enough to cover the total heat load of the day is calculated. Here, i = i + 1. In step a13, the hot water storage pattern is calculated in the same manner as in step a6, and in step a14, it is determined whether or not the maximum hot water storage value is smaller than the maximum hot water storage possible value, as in step a7. If it is judged to be small, step a
At 15, it is judged whether or not the value of i is larger than that of Ti-1 which is one before. If it ’s getting bigger,
Return to step a11. When it is determined in step a14 that the maximum hot water storage value is not smaller than the maximum hot water storage possible value, Ti = Ti-1 is set in step a16. Step a
When it is judged in 15 that Ti is not larger than Ti-1,
Alternatively, when step a16 ends, the ON time and Ti are determined in step a20.

When it is determined in step a7 that the maximum hot water storage value is not less than the maximum hot water storage possible value, step a
Delay the ON time at 21. In step a22, as in step a12, the main operation is performed from the ON time, and the operating time Ti for covering the total heat load of the day is calculated. In step a23, the hot water storage pattern is calculated in the same manner as in step a13, and in step a24, it is determined whether or not the maximum hot water storage value is smaller than the maximum hot water storage possible value, as in step a14. If it is determined that it is not smaller, the process returns to step a21. When it is determined in step a24 that the maximum hot water storage value is not smaller than the maximum hot water storage possible value, the ON time and Ti are determined in step a20.

In the procedure shown in FIG. 2, when the operation of the cogeneration facility 20 is started at time t0 as shown in FIG. 5 (a), the received power is the minimum standard until time t1 as shown in FIG. 5 (b). The main operation is as follows. Time t
In No. 1, the cogeneration facility 20 reaches the rated output, and most of the time until the time Ti elapses is operated in the rated output state. Since the received electric power covers the entire electric power load after the cogeneration facility 20 is stopped, as shown in FIG. 5B, the electric power received is the minimum during the main operation from the ON time.

Table 1 below shows an example of a power load pattern predicted for the cogeneration facility 20 according to the schedule set according to the procedure of FIG. There is a difference between ○ month △ day and ◆ month ● day, which is plotted as a graph in FIG. For such a difference, the following Table 2 is obtained when the ON time is obtained according to the procedure of FIG. ○ month △
On a daily basis, the operation time at 16:00 is reduced by 11.3% and the fuel consumption amount is reduced by 11.5% at 16:00. ◆ On Monday and Sunday, the reduction rate is higher at 18:00 ON than at 17:00.

[0033]

[Table 1]

[0034]

[Table 2]

[0035]

[Table 3]

The reduction of fuel consumption as shown in Table 2 is as follows.
This is derived from the characteristics of partial load efficiency shown in Table 3. The total efficiency decreases as the partial load decreases, so, for example, 3
If it is less than 0 kW, the operation of the cogeneration facility 20 is stopped, and the cogeneration facility 20 is operated only when it is expected to supply a power load of 30 kW or more, which improves overall efficiency. When there is a pattern or difference, it is necessary to change the ON time.

FIG. 7 shows a security monitoring procedure performed by the management center 50. As described above, each of the dwelling units 1, 2 and 3 such as the condominium 10 is provided with an earth leakage breaker on a switchboard or the like. When an electric current or the like flows to the ground due to electric leakage, the earth leakage breaker detects a difference in electric current between alternating current phases in the electric power receiving line 27, interrupts the electric current, and enters a trip state. In the trip state, the contact opens and the switch lever moves to the middle of the ON position and the OFF position. When the switch lever is turned to the ON position, the interrupted contact can be closed and power supply can be restarted. The detected current should be smaller than the current value that may cause an electric shock accident to the human body.

When the earth leakage breaker trips in step b1, a trip signal is transmitted in step b2. In step b3, the control center 40 receives the signal. At step b4, the customer re-closes the earth leakage breaker in each of the dwelling units 1, 2, and 3. At step b5, meter reading is performed from the management center 40 via the electric energy meter 1a. This timing is a few minutes after the trip occurs.

At step b6, it is judged whether or not the electric power is being used. When it is determined that the device is in use, it is determined in step b4 that the recovery is performed by re-input by the customer, it is determined that the trip is due to overcurrent, and it is determined that the recovery is performed in step b8.

If it is determined in step b6 that the circuit is not in use, it is considered that even if the earth leakage breaker is turned on again, the earth leakage is detected and the trip immediately occurs. That is, in step b9, it is determined that the trip is due to an electric leakage, and step b1
A maintenance worker is dispatched at 0, and is restored at step b11.

As described above, by collecting the contact information of the earth leakage breaker at the management center 40, the maintenance worker is dispatched when the earth leakage breaker trips. However, since there are cases where it simply trips due to overcurrent, after making that determination,
In case of an electric leak, maintenance workers will be encountered.

The same operation is performed not only for electricity but also for city gas by using contact information of the gas leak alarm.

In the present embodiment, the management center 40 measures the data of each dwelling unit 1, 2, 3 such as the condominium 10 which is a customer, and performs the optimum calculation based on the data, which enables deregulation. It is possible to optimize (increase efficiency) the supply to the dedicated section of the cogeneration facility 20 that has become defective. In addition, the maintenance plan can be planned in the optimum period by accumulating the operational questions. Further, it becomes possible to collectively secure the security of each dwelling unit in the management center 40, which has been difficult to individually cope with the high voltage batch power reception in the past.

[0044]

As described above, according to the present invention, in an apartment house such as a condominium including a plurality of dwelling units, the power load and the heat load are predicted, and the heat quantity required at the peak of the heat load is determined by the cogeneration facility. The operation is started before the hot water is stored. The operation schedule is an OFF time that sets the ON time at which the operation should be started prior to the peak time so as to supply the power load predicted by the main operation, and completes the generation of the total heat quantity predicted as the heat load. Since the cogeneration equipment is set to operate up to, power and heat can be efficiently supplied, and appropriate operation can be performed according to a schedule for each operation cycle.

Further, according to the present invention, the plurality of dwelling units of the apartment house form the management organization of the cogeneration facility, and the plurality of dwelling units of the apartment house form the management organization of the cogeneration facility, and the electric power received from the commercial power. To receive electricity in a lump. In each dwelling unit, one or more measuring instruments for measuring the amount of electric power and heat used and an earth leakage breaker are installed. The management organization collects the measurement value data of each measuring instrument, calculates the usage charge for each dwelling unit, and uses the measurement value data as basic data for predicting the electric power load and the heat load. While collecting the contact information of the earth leakage breaker installed in the dwelling unit, perform the safety monitoring work required for power use at your own risk. Multiple dwelling units collectively receive electric power,
Calculation of usage charges and security monitoring work necessary for power use,
Since it is done at your own risk, each dwelling unit receives power individually,
It is possible to reduce the unit purchase price of electric power as compared with the case where the electric power company individually carries out the meter reading work and the security monitoring work. In order to predict the electric power load and the heat load, the measurement value data measured and collected by one or a plurality of measuring instruments installed in each dwelling unit is used as the basic data, so that the accuracy of the prediction can be improved.

Further, according to the present invention, the management center predicts the electric power load and the heat load, sets the operation schedule of the cogeneration equipment, and operates and maintains the cogeneration equipment based on the set schedule. The maintenance worker will be dispatched based on the contact information of the earth leakage breaker. The housing complex management organization can outsource the operation of cogeneration equipment to the management center, and the management center can handle multiple apartment houses as customers, and can fully monitor the power security of each apartment. Can be carried out.

[Brief description of drawings]

FIG. 1 is a block diagram showing an outline of a method of operating a cogeneration facility according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a schematic procedure of the operation method of FIG.

FIG. 3 is a graph showing an example of a heat load and an operating state of the cogeneration facility 20 required to supply the total heat load.

FIG. 4 is a graph showing an example of an electric power load and an operating state of the cogeneration facility 20 necessary to supply the total heat load.

5 is a graph showing a heat generation pattern and received power in the operating state shown in FIG.

FIG. 6 is a graph showing an example of predicted data of electric power loads before and after a peak of thermal load.

7 is a flowchart showing an example of security monitoring work performed by the management center 40 of FIG.

[Explanation of symbols]

1,2,3 dwelling unit 1a Electricity meter 1b gas meter 10 apartments 20 cogeneration equipment 21 generator 22 Hot water storage tank 23 CG operation unit 24 Generator power meter 25 Receiving electricity meter 26 Hot water meter 30 Information and communication network 40 management center 50 data centers

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yamazaki Akiaki             4-1-2 Hirano-cho, Chuo-ku, Osaka-shi, Osaka Prefecture               Within Osaka Gas Co., Ltd. F term (reference) 5G066 JA07 JB06 KA01 KA06 KA12                       KB01

Claims (3)

[Claims] 1. Introduced in an apartment house including a plurality of dwelling units,
This is a method of operating a cogeneration facility that uses the waste heat as hot water by supplying power by connecting the grid to commercial power, and installing a hot water storage tank that can store hot water. The operation is performed according to a schedule set for each operation cycle. In the setting of the schedule, the power load and the heat load in the operation cycle are predicted, and the heat amount required at the peak of the heat load is always received at or above the predetermined power amount. While supplying the power load predicted by the main operation that operates the cogeneration facility,
The ON time at which the operation of the cogeneration equipment should be started prior to the peak time is set, and when the generation of the total heat quantity predicted as the heat load is completed, the operation of the cogeneration equipment should be stopped.
A method of operating a cogeneration facility, characterized by being set as F hours. 2. A plurality of dwelling units of the collective housing form a management organization of the cogeneration facility, and the management organization collectively receives electric power received from commercial power as the collective housing, and Has one or more measuring instruments for measuring the amount of electricity and heat used and an earth leakage breaker. The management organization collects the measured value data of each measuring instrument and While calculating the usage charge of the power consumption, using the measured value data as basic data for predicting the electric power load and the heat load, and collecting the contact information of the earth leakage breaker installed in each dwelling unit while using the electric power. The method of operating a cogeneration facility according to claim 1, wherein the security monitoring work necessary for the above is carried out at the own risk. 3. The measurement value data of the measuring instrument and contact information of the earth leakage breaker are collected (meter reading) via an information communication network, and the electric power load and the heat load using the collected measurement value data. , The operation schedule of the cogeneration facility is set, the cogeneration facility is operated and maintained based on the set schedule, and the maintenance work is performed based on the collected contact information of the earth leakage breaker. A management center for dispatching employees is set up, charging processing is performed from the measured value data, and the management organization of the housing complex outsources the operation of the cogeneration facility to the management center. The method of operating the cogeneration facility according to claim 2.