JP2014016844A - Power consumption estimation system for station-installed apparatus - Google Patents

Abstract

[PROBLEMS] To provide a power consumption estimation system for station-installed equipment that can save labor and labor for installing a wattmeter corresponding to each equipment and the cost of developing a communication network used to collect data from each wattmeter. provide.
A station building installed device power consumption estimation system according to the present invention is a station building installed device power consumption estimation system that estimates individual power consumption of a plurality of devices installed in a station building. The harmonic sensor 100 that is provided on the upper side of the power supply system that detects the waveform pattern of the current flowing through the power supply system, and the waveform pattern detected by the harmonic sensor 100 corresponds to the operating status of each device. And an information processing apparatus 300 that estimates the power consumption of each device based on the database, the waveform pattern detected by the harmonic sensor 100, and the database.
[Selection] Figure 1

Description

  The present invention relates to a power consumption estimation system for station-installed equipment that estimates power consumed by individual electrical equipment installed in a station building.

  In order to promote energy saving and power saving in the station building, the power consumption is grasped for each time zone and load and measures are taken. For this reason, it is requested | required for every apparatus to grasp | ascertain the power consumption of each apparatus which is each load installed in the station building, such as illumination, air conditioning, and an elevator. In order to obtain power consumption for each individual device, it has been conventionally proposed to install a wattmeter for each individual device.

For example, in Patent Document 1 (Japanese Patent Laid-Open No. 2001-83193), a wiring connection terminal, a voltage / current sensor for detecting the voltage and current of the terminal, and the detected voltage and current are converted into a power data signal and transmitted. Wiring connector having a data conversion / transmission device for converting the power data signal from the data conversion / transmission device into a network data signal, and sending the data together with time information to a local information communication network (LAN) Terminal load power comprising a monitoring computer connected to an interface and a local information communication network, and monitoring power consumption of the terminal load connected to the indoor electrical wiring via the wiring connector by the monitoring computer A monitoring system is disclosed.
JP 2001-83193 A

  When there are many devices installed like a station building and they are dispersed over a wide range, when trying to measure the power consumption using a system as described in Patent Document 1, , It takes time to install a wattmeter corresponding to each device and the cost of developing a communication network used to collect data from each wattmeter, and it is actually difficult to introduce the system There was a problem.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a power consumption estimation system for a station building installation device that estimates individual power consumption of a plurality of devices installed in a station building. A sensor that is provided on the upper side of the power supply system to be supplied, detects a waveform pattern of a current flowing in the power supply system, a waveform pattern detected by the sensor, and a database that stores the operation status of each device in association with each other; An information processing unit that estimates power consumption of each device based on a waveform pattern detected by the sensor and the database is characterized in that:

  Further, the invention according to claim 2 is a power consumption estimation system for a station building installation device that estimates individual power consumption of a plurality of devices installed in a station building, and is a high-order power supply system that supplies power to each device. The sensor that detects the waveform pattern of the current that flows through the power supply system, and the power that is provided on the upper side of the power supply system that supplies power to each device and measures the power consumption of all the devices installed on the lower side A database for storing the meter, the waveform pattern detected by the sensor, and the operating status of each device in association with each other, the waveform pattern detected by the sensor, the database, and all the power meters measured by the wattmeter And an information processing unit that estimates the power consumption of each device based on the power consumption of the device.

  Moreover, the invention which concerns on Claim 3 is a power consumption estimation system of the station building installation apparatus of Claim 2. WHEREIN: The said information processing part operates based on the waveform pattern detected by the said sensor, and the said database. Create a list of candidate combinations of equipment and operating status, calculate the integrated power value based on the operating equipment in the list and the operating status, and calculate the closest integrated power consumption of all devices measured by the power meter It is characterized in that the power consumption of each device of each device is estimated by a combination of the operating device that gives the power value and the operating status.

  The invention according to claim 4 is the power consumption estimation system according to any one of claims 1 to 3, wherein the waveform pattern detected by the sensor is a harmonic waveform pattern. To do.

A station power installation estimation system according to the present invention includes a sensor for detecting a waveform pattern of a current flowing through a power supply system, which is provided on the upper side of a power supply system that supplies power to each device, and the sensor. Since it is the structure which estimates the power consumption of each apparatus based on the database which matches and memorize | stores a waveform pattern and the operation condition of each apparatus, the power consumption estimation system of the station building installation apparatus which concerns on such this invention According to
It is possible to save time and labor for installing a wattmeter corresponding to each device installed in the station building and the cost of developing a communication network used to collect data from each wattmeter. It can be introduced and contributes to energy saving measures and power saving in the station building.

It is a block diagram of the power consumption estimation system of the station building installation apparatus which concerns on embodiment of this invention. 4 is a schematic diagram of a waveform pattern detected by a harmonic sensor 100. FIG. It is a figure which shows the flowchart of the database construction process (1) in the power consumption estimation system of the station building installation apparatus which concerns on embodiment of this invention. It is a figure which shows the example of a data structure of the data memorize | stored by the database construction process (1). It is a figure which shows the flowchart of the database construction process (2) in the power consumption estimation system of the station building installation apparatus which concerns on embodiment of this invention. It is a figure which shows the example of a data structure of the data memorize | stored in a database construction process (2). It is a figure which shows the flowchart of the power consumption estimation process in the power consumption estimation system of the station building installation apparatus which concerns on embodiment of this invention. It is a figure which shows the flowchart of the power consumption estimation process in the power consumption estimation system of the station building installation apparatus which concerns on other embodiment of this invention. It is a block diagram of the power consumption estimation system of the station building installation apparatus which concerns on other embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a power consumption estimation system for station building equipment according to an embodiment of the present invention. Blocks arranged on the rightmost side in FIG. 1 indicate devices installed in the station building. Further, FIG. 1 shows a power supply system from the upper commercial power source or the private power generator drawn into the station building on the left side of the drawing to each device connected to the lower side on the right side of the drawing.

From the power supply system that is the route from the power supply such as commercial power supply and private power generation, the power supply system for air conditioning equipment, the power supply system for lighting, the power supply system for elevators, the power supply system for escalators, The power supply system is branched into five power supply systems, and the power supply system is branched to each device further below the five power supply systems.

  In the present embodiment, “office room 1 air conditioning”, “office room 2 air conditioning” and “ticket vending room air conditioning” are connected under “air conditioning equipment power supply system”, and “lighting power supply system” "Office lighting", "Concourse lighting" and "Home lighting" are connected, and "Elevator 1", "Elevator 2" and "Elevator 3" are connected under "Elevator power supply system" Under the “Escalator power supply system”, “Escalator 1” and “Escalator 2” are connected, and under the “Electrical station equipment power supply system” there are “Ticket gates” and “Ticket machines”. Although described below based on the connected examples, the above-described power supply system and station building installation equipment in the station building are merely examples, and the present invention is not limited to this configuration.

  A harmonic sensor 100 and a wattmeter 200 are arranged in a power supply line of a route power supply system from a power source such as a commercial power source or a private power generation. In the harmonic sensor 100, a waveform pattern of a current flowing in the route power supply system The power meter 200 measures the power consumed by the entire device connected to the lower level of the route power supply system.

  FIG. 2 is a schematic diagram of a waveform pattern detected by the harmonic sensor 100. In FIG. 2, the dotted box is an enlarged view of a part of the AC wave of the current flowing through the route power supply system.

  In the harmonic sensor 100, the amplitude is higher than the frequency of the commercial power supply, as shown in the figure, superimposed on the AC waveform of the current flowing in the power supply system of the route, and the amplitude is also smaller than the amplitude of the AC waveform. It is possible to detect a waveform pattern of the waveform (harmonic or high frequency).

  The harmonic waveform pattern detected by the harmonic sensor 100 is a waveform pattern of noise components generated by the operation of a device connected to the lower part of the route power supply system. The waveform pattern of the harmonics generated by the device is unique to the device. Further, even when the operation status of the device is different during high load operation or low load operation, different unique harmonic waveform patterns are generated from the device.

  In the power consumption estimation system of the station building installation device according to the present invention, whether or not the device connected to the lower part of the power feeding system is in operation by the harmonic waveform pattern detected by the harmonic sensor 100, When it is operating, it also determines the operating status (whether it is operating at high load or low load) and estimates the power consumed by each device. Is.

  Data relating to the waveform pattern of the harmonic detected by the harmonic sensor 100 and power data measured by the wattmeter 200 are input to the information processing apparatus 300. As the information processing apparatus 300, a generally used personal computer can be used. An operating system program, which is a basic program for controlling a CPU (not shown) of the information processing apparatus 300, is stored in a storage unit (not shown) in the information processing apparatus 300, and the power consumption estimation system of the present invention is used as a CPU. A system program to be operated above and data used in the system program are installed, stored and stored.

  In particular, the database stored in the storage unit of the information processing apparatus 300 and referred to by the power consumption estimation system for station building equipment according to the present invention includes harmonic waveform patterns detected by the harmonic sensor 100, and There is a database that stores operating conditions in association with each other.

Hereinafter, a procedure for constructing such a database will be described. First, the first database construction process will be described. In this first process, 1 out of all devices
When one device operates, what kind of harmonic waveform pattern is detected by the harmonic sensor 100, and how much power is consumed at that time is converted into data.

  FIG. 3 is a diagram showing a flowchart of the database construction process (1) in the power consumption estimation system for the station building installation device according to the embodiment of the present invention.

When the database construction process (1) is started in step S100, the process proceeds to step S101, and only one device among the devices shown in FIG. 1 is operated with a specific output.

  In step S102, a harmonic waveform pattern is extracted by the harmonic sensor 100, and the power value is measured by the wattmeter 200 in step S103.

  In step S104, the type of the operating device, the operating status of the operating device, the waveform pattern extracted by the harmonic sensor 100, and the power value measured by the wattmeter 200 are associated with each other and stored in the database of the information processing device 300. To do.

  In step S105, it is determined whether or not the creation of a database has been completed for all operating statuses for all devices connected to the power feeding system.

  If the determination in step S105 is no, the process proceeds to step S106, a different device and operating status are set, and the process returns to step S101 to loop. On the other hand, if determination in step S05 is YES, it will progress to step S106 and will complete | finish a database construction process (1).

  FIG. 4 is a diagram showing an example of the data structure of data stored in the database construction process (1) as described above.

  In the example illustrated in FIG. 4, the operation status of “office 1 air conditioning”, the harmonic waveform pattern, and the power consumption value are stored in association with each other.

In the present embodiment, it is assumed that “office 1 air conditioning” has three stages of P ₁ , P ₂ , and P ₃ as operating conditions, but this is only an example. Absent.

This “office 1 air conditioning” is data that when the operating status is P ₁ , the waveform pattern of harmonics is the waveform pattern of P _ac11 and the power consumption value is W _ac11 .
When operating status is P _2, as the waveform pattern of the harmonics is a waveform pattern of the P _AC12, it is data of a W _AC12 as power consumption value.
When the operating status is P ₃ , the waveform pattern of the harmonic is the waveform pattern of P _ac13 and the power consumption value is W _ac13 .

  As described above, in the database constructed by the database construction process (1), when a device is operating independently, when a device is in what operating state, what harmonic waveform pattern is displayed. It will be stored and how much power is consumed.

Next, the second database construction process will be described. In this second process,
When a plurality of devices are operating, what kind of harmonic waveform pattern is detected by the harmonic sensor 100, and how much power is consumed at that time is converted into data.

  FIG. 5 is a diagram showing a flowchart of the database construction process (2) in the power consumption estimation system for station building installation equipment according to the embodiment of the present invention.

  When the database construction process (2) is started in step S200, the process proceeds to step S201, and a plurality of devices are operated with specific outputs.

  In step S202, a harmonic waveform pattern is extracted by the harmonic sensor 100, and the power value is measured by the wattmeter 200 in step S203.

  In step S204, the type of each operating device, the operating status of each operating device, the waveform pattern extracted by the harmonic sensor 100, and the power value measured by the wattmeter 200 are associated with each other in the database of the information processing apparatus 300. Remember.

  In step S <b> 205, it is determined whether or not the creation of a database has been completed for all operating states in each device. If the determination in step S205 is no, the process proceeds to step S207, a different operating status is set, and the process returns to step S201 to loop. On the other hand, if the determination in step S05 is yes, the process proceeds to step S206.

  In step S206, it is determined whether or not the creation of a database is completed for all combinations of devices connected to the power feeding system.

  If the determination in step S206 is no, the process proceeds to step S208, a combination of different devices is set, and the process returns to step S201 to loop. On the other hand, if determination in step S06 is YES, it will progress to step S209 and will complete | finish a database construction process (2).

  FIG. 6 is a diagram showing an example of the data structure of data stored in the database construction process (2) as described above.

  In the example shown in FIG. 6, the combination of “elevator 2” and “home lighting” corresponds to the operating status of each device, the harmonic waveform pattern, and the power consumption value when each device is operating. It is the data stored with the addition.

In the present embodiment, it is assumed that the “elevator 2” has three stages P ₁ , P ₂ , and P ₃ as operating conditions, and the “home lighting” has two stages on and off. However, this is only an example.

In FIG. 6, when “Elevator 2” has an operating status of P ₁ and “Home lighting” is off, the waveform pattern of harmonics is a waveform pattern of P _ev21-hl0 and the power consumption value is W _The data is _ev21-hl0 .

Further, "the elevator 2" operating status is P _2, when "home lighting" is off, the waveform pattern of the harmonics is a waveform pattern of the _{P ev22-hl0,} W is a power consumption value _{ev22- The} data is _hl0 .

Further, "the elevator 2" operating status is P _3, when "home lighting" is off, the waveform pattern of the harmonics is a waveform pattern of the _{P ev23-hl0,} W is a power consumption value _{ev23- The} data is _hl0 .

When “Elevator 2” has an operating status of P ₁ and “Home lighting” is on, the waveform pattern of harmonics is the waveform pattern of P _ev21-hl1 , and the power consumption value is W _ev21- It is _converted to _hl1 data.

When “Elevator 2” has an operating status of P ₂ and “Home lighting” is on, the waveform pattern of harmonics is the waveform pattern of P _ev22-hl1 , and the power consumption value is W _ev22- It is _converted to _hl1 data.

Further, "the elevator 2" operating status is P _3, when "home lighting" is turned on, the waveform pattern of the harmonics is a waveform pattern of the _{P ev23-hl1,} W is a power consumption value _ev23- It is _converted to _hl1 data.

  In the example shown in FIG. 6, the situation where two devices “elevator 2” and “home lighting” are operating is converted into data. According to the database construction process (2) shown in FIG. Not limited to this, an arbitrary operating status of each device can be converted into data by a combination of arbitrary devices.

  As described above, in the database constructed by the database construction process (2), in what combination each device operates, and in what operating state each device is, what harmonic waveform A pattern is generated and how much power is consumed is stored.

  Next, how to estimate the power consumption of each device installed in the station building by referring to the database constructed as described above will be described. FIG. 7 is a diagram showing a flowchart of a power consumption estimation process in the power consumption estimation system for station building installation equipment according to the embodiment of the present invention.

  In FIG. 7, when the power consumption estimation process is started in step S300, the process proceeds to step S301. When each device installed in the station building is operating, a harmonic waveform pattern is generated by the harmonic sensor 100. Extract.

  In the next step S302, pattern matching is performed between the harmonic waveform data extracted by the harmonic sensor 100 and the harmonic waveform data stored in the database, and a combination of operating equipment and operating status is specified. .

  In step S303, the breakdown of the power value of the combination of the specified operating device and operating status is displayed on a display device (not shown) of the information processing apparatus 300.

  In step S304, it is determined whether there is an end request. If the determination is NO, the process returns to step S301 and loops. On the other hand, if the determination is YES, the process proceeds to step S305 to end the power consumption estimation process.

The above-described power consumption estimation system for station-installed equipment according to the present invention includes a harmonic sensor 100 that detects a waveform pattern of a current flowing through a power supply system, which is provided on the upper side of a power supply system that supplies power to each device. Since the configuration is such that the power consumption of each device is estimated based on the database that stores the waveform pattern detected by the harmonic sensor 100 and the operation status of each device in association with each other, the present invention According to the system for estimating power consumption of station-installed equipment, the effort to install a wattmeter corresponding to the individual equipment installed in the station building and the maintenance of a communication network used to collect data from each wattmeter Cost can be saved, the system can be introduced easily and inexpensively, and it can contribute to energy saving measures and power saving in the station building.

  Next, another embodiment of the present invention will be described. In the previous embodiment, the combination of operating equipment and operating status is specified based only on the harmonic waveform data extracted by the harmonic sensor 100. However, in the present embodiment, the harmonic sensor 100 is used. In addition to the harmonic waveform data extracted by the above, the total power consumption value of all the devices measured by the wattmeter 200 is also referred to to identify the combination of the operating device and the operating status. In other embodiments, it is possible to perform estimation with higher accuracy than in the previous embodiment by referring to the measurement value obtained by the wattmeter 200.

  Hereinafter, a method for estimating the power consumption of each device according to another embodiment will be described. FIG. 8 is a diagram showing a flowchart of a power consumption estimation process in a power consumption estimation system for station-installed equipment according to another embodiment of the present invention.

  In FIG. 8, when the power consumption estimation process is started in step S400, in the next step S401, when each device installed in the station building is operating, the harmonic sensor 100 uses the harmonic waveform pattern. To extract.

  In the subsequent step S402, pattern matching is performed between the harmonic waveform data extracted by the harmonic sensor 100 and the harmonic waveform data stored in the database, and a list of candidate combinations of operating devices and operating statuses. Create

  In such a list, the number (N) of combinations of candidate operating devices / operating statuses can be, for example, about N = 5. In this embodiment, several combinations of operating devices and operating statuses are listed, and by referring to the value of the wattmeter 200, the operating device and operating status combinations can be specified more accurately. There is a merit that

  In step S403, the integrated power value of each combination is acquired from the database based on the operating equipment and operating status in the list. Here, a specific example of the integrated power value acquired from the database in step S403 will be described.

For example, the operating device in the list is a combination of “Elevator 2” and “Home Lighting”, and the operating status of “Elevator 2” and “Home Lighting” is “Elevator 2” is P ₂ and “ If “Home Lighting” is on, refer to the database of FIG.
Get W _ev22-hl1 . The accumulated power values of the operating devices and operating statuses in the other lists can be acquired in the same manner as in this example.

  In the next step S404, the measured power value measured by the wattmeter 200 is compared with the integrated power value, and the combination of the operating device and operating status closest to the measured power is identified as the current operating device and operating status.

  In step S405, the breakdown of the power value of the combination of the specified operating device and operating status is displayed on a display device (not shown) of the information processing apparatus 300.

  In step S406, it is determined whether there is an end request. If the determination is NO, the process returns to step S401 and loops. On the other hand, if the determination is YES, the process proceeds to step S407 to end the power consumption estimation process.

  The power consumption estimation system for station-installed equipment according to another embodiment as described above is a harmonic sensor that detects a waveform pattern of a current flowing through the power supply system, which is provided on the upper side of the power supply system that supplies power to each device. 100, a database that stores the waveform pattern detected by the harmonic sensor 100 and the operation status of each device in association with each other, and the power consumption of all devices measured by the wattmeter 200. Since it is a configuration to estimate power consumption, according to the power consumption estimation system of such a station building equipment according to the present invention, the effort to install a wattmeter corresponding to each device installed in the station building, It is possible to reduce the cost of maintenance of the communication network used to collect data from individual power meters, and the system can be introduced simply and inexpensively. It can contribute to over measures and power saving.

  Next, another embodiment of the present invention will be described. FIG. 9 is a block diagram of a power consumption estimation system for station building equipment according to another embodiment of the present invention.

  In the embodiments described so far, the description has been made based on the example in which the harmonic sensor 100 and the wattmeter 200 are arranged only in the power supply line of the power supply system of the route from the power source such as the commercial power source or the private power generation. The power consumption estimation system of the station building installation device according to the invention is not limited to such an example, but includes “a power supply system for air conditioning equipment”, “a power supply system for lighting”, “a power supply system for elevators” branched from the power supply system of the route ”,“ Escalator power supply system ”,“ Station service equipment power supply system ”, and the like, as shown in FIG. 9, harmonic sensors 101 to 105 and wattmeters 200 to 205 are further complementarily provided. A database is constructed based on the obtained information, and the power consumption of each device is estimated by referring to the data obtained from the database and the database. It is also possible.

  According to another embodiment as shown in FIG. 9, although the number of harmonic sensors and power meters to be installed is increased compared to the embodiments described so far, the power consumption of each device can be estimated with higher accuracy. You can enjoy the merit that it is possible.

  In FIG. 9, “air-conditioning power supply system”, “lighting power supply system”, “elevator power supply system”, “escalator power supply system”, and “station service equipment power supply” branch off from the route power supply system. All the power supply systems of the "system" are provided with harmonic sensors and wattmeters, but power supply systems with harmonic sensors and wattmeters are, for example, "power supply systems for air conditioning equipment", "power supply systems for elevators" Alternatively, a complementary harmonic sensor and wattmeter may be selectively provided, such as limited to the “escalator power supply system”.

  Advantages of selectively providing a complementary harmonic sensor and wattmeter to the “air conditioning power supply system”, “elevator power supply system”, and “escalator power supply system” Many of the devices connected to the "Elevator power supply system" and "Escalator power supply system" use inverters, and are connected to the "Lighting power supply system" and "Station service equipment power supply system". Since the waveform pattern of the generated harmonics is more complicated than that of equipment, at least the complementary harmonic sensor and the power supply system for air conditioning equipment, the power supply system for elevators, and the power supply system for escalators By providing a power meter, it may be possible to estimate the power consumption of each device with higher accuracy.

  As described above, according to the power consumption estimation system for station-installed equipment according to the present invention, it is necessary to install a power meter corresponding to each device installed in the station building, or to collect data from each power meter. It is possible to reduce the cost of maintenance of the communication network to be used, the system can be introduced simply and inexpensively, and it can contribute to energy saving measures and power saving in the station building.

100, 101, 102, 103, 104, 105 ... harmonic sensor 200, 201, 202, 203, 204, 205 ... wattmeter 300 ... information processing apparatus

Claims (4)

A power consumption estimation system for station building equipment that estimates individual power consumption of a plurality of equipment installed in a station building,
A sensor that is provided on the upper side of a power supply system that supplies power to each device and detects a waveform pattern of a current flowing through the power supply system;
A database that stores the waveform pattern detected by the sensor and the operation status of each device in association with each other;
An information processing unit for estimating power consumption of each device based on a waveform pattern detected by the sensor and the database, a power consumption estimation system for station-installed devices. A power consumption estimation system for station building equipment that estimates individual power consumption of a plurality of equipment installed in a station building,
A sensor that is provided on the upper side of a power supply system that supplies power to each device and detects a waveform pattern of a current flowing through the power supply system;
A wattmeter that is provided on the upper side of the power supply system that supplies power to each device and measures the power consumption of all devices installed on the lower side;
A database that stores the waveform pattern detected by the sensor and the operation status of each device in association with each other;
An information processing unit that estimates the power consumption of each device based on the waveform pattern detected by the sensor, the database, and the power consumption of all devices measured by the power meter, Power consumption estimation system for station building equipment. The information processing unit creates a list of candidate combinations of operating devices and operating conditions based on the waveform pattern detected by the sensor and the database.
Calculate the integrated power value based on the operating equipment and operating status in the list,
The power consumption of each device of each device is estimated by a combination of the power consumption of all devices measured by the wattmeter and the operating device that gives the closest integrated power value and the operating status. The power consumption estimation system of the station building installation described. The power consumption estimation system according to any one of claims 1 to 3, wherein the waveform pattern detected by the sensor is a harmonic waveform pattern.

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