WO2018047263A1

WO2018047263A1 - Power consumption adjustment device, power consumption adjustment system, power consumption adjustment method, and program

Info

Publication number: WO2018047263A1
Application number: PCT/JP2016/076388
Authority: WO
Inventors: 雄喜小川; 利康樋熊; 聡司峯澤
Original assignee: 三菱電機株式会社
Priority date: 2016-09-08
Filing date: 2016-09-08
Publication date: 2018-03-15
Also published as: JP6641492B2; JPWO2018047263A1

Abstract

A power information acquiring unit (101) acquires power information indicating the total power consumption of a plurality of electric devices. When a total power variation that is a variation of the total power consumption per unit time exceeds a power change threshold value, a list generation unit (102) adds, to a list, a record corresponding to a first electric device in which an individual power variation that is a variation of power consumption per unit time exceeds the power change threshold value. A transmission unit (104) transmits, to the plurality of electric devices, adjustment instruction information indicating that the power consumption should be adjusted and parameter information indicating parameters including the number of records included in the list.

Description

Power consumption adjustment device, power consumption adjustment system, power consumption adjustment method, and program

The present invention relates to a power consumption adjusting device, a power consumption adjusting system, a power consumption adjusting method, and a program.

In recent years, various techniques for managing the total power consumption in demand areas are known. For example, in Patent Document 1, one or more power consumption elements (hereinafter referred to as “electrical devices”) individually given priority and information indicating total power consumption adjustment instruction values are broadcast to each electric device. A power control system including a broadcast transmission element (hereinafter referred to as “power consumption adjusting device”) is disclosed. The total power consumption adjustment instruction value is a function of the difference between the current value of the total power consumption consumed in the group including each electrical device and the reference value of the total power consumption.

Each power device controls its own power consumption by calculation using the priority given to itself and the total power consumption adjustment instruction value. Here, the priority may be determined according to the number of high-power electric devices. High-power electric devices are electric devices that are considered to have a relatively large power consumption and a high degree of contribution to the adjustment of total power consumption among the electric devices included in the group. The number of high-power electric devices is set by a contractor, for example.

International Publication No. 2015/115385

In the technique disclosed in Patent Document 1, when a high-power electric device is added to a group or a high-power electric device is excluded from the group, it is necessary for a contractor to reset the number of high-power electric devices. . However, it is very troublesome for a contractor to reset the number of high-power electric devices each time a high-power electric device is added or removed. On the other hand, unless the contractor resets the number of high-power electric devices, it is difficult to maintain the accuracy of power consumption adjustment by the electric devices. Therefore, there is a demand for a technique that maintains the accuracy of power consumption adjustment without increasing the burden on the user.

The present invention has been made in view of the above problems, and includes a power consumption adjustment device, a power consumption adjustment system, a power consumption adjustment method, and a program that maintain the accuracy of power consumption adjustment without increasing the burden on the user. The purpose is to provide.

In order to achieve the above object, a power consumption adjusting apparatus according to the present invention includes:
Power information acquisition means for acquiring power information indicating the total power consumption of a plurality of electrical devices;
When the total power change amount, which is a change amount per unit time of the total power consumption, exceeds the power change threshold value, the individual power change amount, which is the change amount of power consumption per unit time, exceeds the power change threshold value. List generating means for adding a record corresponding to one electrical device to the list;
Transmission means for transmitting adjustment instruction information indicating that power consumption should be adjusted and parameter information indicating parameters including the number of records included in the list to the plurality of electrical devices.

In the present invention, when the total power change amount that is the change amount per unit time of the total power consumption exceeds the power change threshold value, the individual power change amount that is the change amount of power consumption per unit time exceeds the power change threshold value. A record corresponding to the first electric device is added to the list, and adjustment instruction information indicating that the power consumption should be adjusted and parameter information indicating a parameter including the number of records included in the list are included in the plurality of electric devices. Sent. Therefore, according to the present invention, it is possible to maintain the accuracy of power consumption adjustment without increasing the burden on the user.

The block diagram of the power consumption adjustment system which concerns on Embodiment 1 of this invention 1 is a configuration diagram of a power consumption adjustment apparatus according to Embodiment 1 of the present invention. Configuration diagram of an electric apparatus according to Embodiment 1 of the present invention Functional configuration diagram of the power consumption adjustment apparatus according to the first embodiment of the present invention Sequence diagram showing the flow of information related to power adjustment Diagram showing how the total power consumption changes The figure which shows the list generated by list generation processing The flowchart which shows the list | wrist production | generation process which the power adjustment apparatus which concerns on Embodiment 1 of this invention performs Diagram for explaining a method of adjusting power based on priority and return priority The flowchart which shows the electric power adjustment process which the electric equipment which concerns on Embodiment 1 of this invention performs Functional configuration diagram of a power consumption adjusting apparatus according to Embodiment 2 of the present invention The figure which shows the relationship between the electric current which flows into an electric equipment, and the phase position of AC power supply Diagram showing the relationship between the harmonic component of the total current and the phase position of the AC power supply The figure which shows the sublist produced | generated by sublist production | generation processing The flowchart which shows the list | wrist production | generation process which the power adjustment apparatus which concerns on Embodiment 2 of this invention performs. The flowchart which shows the sublist production | generation process shown in FIG.

(Embodiment 1)
First, the configuration of the power consumption adjustment system 1000 according to the first embodiment of the present invention will be described with reference to FIG. The power consumption adjustment system 1000 is a system that adjusts the total power consumption so that the total power consumption in a demand area approaches a predetermined target power. The total power consumption in the demand area is the total power consumed in the plurality of electric devices 300 used in the demand area. A demand place is a place where electric power is required. In the present embodiment, it is assumed that the house is in a general household. In this embodiment, in order to facilitate understanding, the “power value” is simply referred to as “power” as appropriate. The adjustment of the total power consumption is realized by the cooperation of the power consumption adjustment device 100 and the plurality of electric devices 300 used in the demand area. Specifically, the power consumption adjusting apparatus 100 broadcasts the adjustment instruction information and the parameter information to each of the plurality of electric devices 300 used in the demand area. On the other hand, each of the plurality of electrical devices 300 adjusts the power consumption of its own device according to the received adjustment instruction information and parameter information.

The adjustment instruction information is information indicating that the power consumption should be adjusted. The adjustment instruction information is generally notified by alert notification. The parameter information is information indicating parameters necessary for power consumption adjustment (hereinafter referred to as “power adjustment” as appropriate). The parameter information is generally notified by common parameter notification. When the difference between the total power consumption and a predetermined target power (hereinafter referred to as “deviation power”) exceeds a predetermined allowable value, the power consumption adjustment device 100 broadcasts adjustment instruction information. The target power is a target power when adjusting the total power consumption. For example, the target power is set by a user, set by a demand response, or set according to an electricity rate. The allowable value is a power difference threshold provided to prevent power adjustment from being performed when the deviation power is relatively small.

The parameter (common parameter) is a parameter commonly used in the power consumption adjustment system 1000. The parameters include, for example, deviation power, total power consumption, system sensitivity, and the number of electric devices with relatively large rated values of power consumption (hereinafter referred to as “high-power electric devices”). In the present embodiment, the parameters include deviation power, system sensitivity, and the number of high-power electric devices. The electric device 300 determines the adjustment amount of the power consumption of the own device by a function using the parameter. Hereinafter, “adjustment amount of power consumption” is appropriately referred to as “power adjustment amount”. The system sensitivity is a coefficient multiplied when obtaining the power adjustment amount. High-power electrical devices consume a large amount of power in the on state, and the amount of change in power consumption (for example, the difference between the power consumption in the on state and the power consumption in the off state) is large. Is also expensive. Here, if the number of high-power electric devices having a high contribution rate or contribution to power adjustment is large, there is a high possibility that sufficient power adjustment will be realized even if the burden per electric device 300 is reduced. Therefore, basically, the power adjustment amount is determined so as to increase as the deviation power increases, as the system sensitivity increases, and as the number of high-power electrical devices decreases.

Also, the electric device 300 determines the power adjustment amount according to the power characteristics of the own device in addition to the parameters. The power characteristic is, for example, the ratio of the rated value of power consumption to the amount of change in power consumption. The amount of change in power consumption is, for example, the amount of change in power consumption when the operating state changes from the on state to the off state, or the amount of change in power consumption when the operation mode changes from the normal mode to the energy saving mode. It can be expected that the lower the ratio, the higher the contribution rate and contribution to power adjustment. For this reason, the power adjustment amount is determined so as to increase as the ratio decreases.

Thus, in this embodiment, the electric device 300 determines the power adjustment amount of the own device according to the parameter and the power characteristic of the own device. For this reason, in this embodiment, the power consumption adjusting apparatus 100 does not need to determine the power adjustment amount of the electric device 300 and does not need to acquire information indicating the power characteristics of the electric device 300 from the electric device 300. Therefore, in the present embodiment, power adjustment can be realized by unidirectional communication of broadcast transmission from the power consumption adjustment apparatus 100 to the plurality of electrical devices 300.

The power consumption adjustment system 1000 includes a power consumption adjustment device 100, a display device 200, a plurality of electrical devices 300, a device adapter 310, a power measurement device 400, a power adapter 410, a commercial power source 420, and a power cloud server. 510, a HEMS cloud server 520, and a terminal device 530. The power consumption adjusting device 100, the display device 200, the device adapter 310, and the power adapter 410 are connected to each other via a home network 610. The power consumption adjustment device 100, the power cloud server 510, the HEMS cloud server 520, and the terminal device 530 are connected to each other by an outside network 620.

When the deviation power that is the difference between the total power consumption and the target power exceeds the allowable value, the power consumption adjustment device 100 broadcasts the adjustment instruction information and the parameter information to each of the plurality of electric devices 300. The power consumption adjustment apparatus 100 may broadcast adjustment instruction information and parameter information to all the electric devices 300, or broadcast adjustment instruction information and parameter information to a specific electric device 300. You may send it. For example, when the power consumption adjustment apparatus 100 stores information that can identify the electric device 300 that is the target of power adjustment, the power consumption adjustment device 100 includes adjustment instruction information, parameter information, and the like for the electric device 300 specified by this information. Is broadcast. Note that the adjustment instruction information and the parameter information need not be transmitted simultaneously.

The power consumption adjustment device 100 communicates with devices and devices connected to the home network 610 via the home network 610. For example, the power consumption adjustment device 100 is connected to the display device 200 serving as a user interface via the home network 610. In addition, the power consumption adjustment apparatus 100 broadcasts adjustment instruction information and parameter information to a plurality of electrical devices 300 via the device adapter 310 connected to the home network 610. The power consumption adjustment apparatus 100 acquires power information indicating the total power consumption from the power measurement apparatus 400 via the power adapter 410 connected to the home network 610.

In addition, the power consumption adjustment apparatus 100 communicates with devices and apparatuses connected to the outside network 620 via the outside network 620. For example, the power consumption adjustment apparatus 100 receives a demand response from the power cloud server 510 connected to the external network 620. In addition, the power consumption adjustment apparatus 100 communicates with a terminal device 530 connected to the outside network 620 via a HEMS (Home Energy Management System) cloud server 520 connected to the outside network 620. The power consumption adjusting device 100 is, for example, a control device that controls the electric device 300, and is a HEMS controller in HEMS. Hereinafter, the configuration of the power consumption adjusting apparatus 100 will be described with reference to FIG.

As shown in FIG. 2, the power consumption adjustment apparatus 100 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, a flash memory 14, an RTC (Real Time Clock) 15, A touch screen 16, an in-home communication interface 17, and an out-of-home communication interface 18 are provided. Each component provided in the power consumption adjusting apparatus 100 is connected to each other via a bus.

The CPU 11 controls the overall operation of the power consumption adjustment device 100. The CPU 11 operates according to a program stored in the ROM 12 and uses the RAM 13 as a work area. The ROM 12 stores programs and data for controlling the overall operation of the power consumption adjusting apparatus 100. The RAM 13 functions as a work area for the CPU 11. That is, the CPU 11 temporarily writes programs and data in the RAM 13 and refers to these programs and data as appropriate.

The flash memory 14 is a nonvolatile memory that stores various types of information. The flash memory 14 stores, for example, total power consumption, target power, allowable value, list, sublist, system sensitivity, the number of high-power electric devices, and the like. The RTC 15 is a time measuring device. The RTC 15 includes, for example, a battery and keeps timing even while the power consumption adjusting device 100 is turned off. The RTC 15 includes an oscillation circuit including a crystal oscillator, for example.

The touch screen 16 detects a touch operation performed by the user and supplies a signal indicating the detection result to the CPU 11. The touch screen 16 displays an image based on the image signal supplied from the CPU 11. As described above, the touch screen 16 functions as a user interface of the power consumption adjustment apparatus 100.

The home communication interface 17 is an interface for connecting the power consumption adjusting device 100 to the home network 610. The power consumption adjustment device 100 communicates with various devices connected to the home network 610 via the home network 610. The home communication interface 17 includes, for example, a LAN (Local Area Network) interface (for example, NIC (Network Interface Card)).

The outside communication interface 18 is an interface for connecting the power consumption adjusting device 100 to the outside network 620. The power consumption adjustment device 100 communicates with various devices connected to the outside network 620 via the outside network 620. The out-of-home communication interface 18 includes, for example, a LAN interface (for example, NIC).

The display device 200 is connected to the home network 610 and functions as a user interface of the power consumption adjustment device 100. The display device 200 has the same configuration as the touch screen 16 and the home communication interface 17, for example. The user can set target power and system sensitivity in the power consumption adjusting apparatus 100 via the display device 200. In addition, the display device 200 displays the operating status of the electric device 300 and the current value of power consumption. In addition, the display device 200 notifies the user that the power adjustment has been performed by displaying information indicating that the power adjustment has been performed. Thus, the display device 200 is a terminal device for accessing the power consumption adjustment device 100 from the home. Note that the display device 200 may not be provided as long as the power consumption adjusting device 100 includes the touch screen 16. The display device 200 is, for example, a tablet terminal, a notebook computer, or a smartphone.

Electrical device 300 is a device that operates by consuming electrical energy supplied from commercial power source 420. The electric device 300 has the same configuration as the home communication interface 17 and has a function of connecting to the home network 610. The electric device 300 is classified into either an electric device that is a high-power electric device or an electric device that is not a high-power electric device. In the present embodiment, it is assumed that all the electric devices 300 are targets of power adjustment, but only the electric device 300 that is a high-power electric device may be a target of power adjustment. The electric device 300 includes, for example, an air conditioner, a television, a lighting, a refrigerator, an IHCH (Induction Heating Cooking Heater), an eco-cute, a ventilation fan, an ice machine, lighting, an insecticidal device, a showcase, a dehumidifier, a humidifier, a heating device, an electric pot, Microwave oven, rice cooker, bath dryer.

As shown in FIG. 3, the electric device 300 includes a CPU 31, a ROM 32, a RAM 33, a flash memory 34, an RTC 35, a touch screen 36, an infrared communication interface 37, and a load circuit 38. Each component provided in the electric device 300 is connected to each other via a bus.

The CPU 31 controls the overall operation of the electric device 300. The CPU 31 operates in accordance with a program stored in the ROM 32, and uses the RAM 33 as a work area. The ROM 32 stores programs and data for controlling the overall operation of the electric device 300. The RAM 33 functions as a work area for the CPU 31. That is, the CPU 31 temporarily writes programs and data in the RAM 33 and refers to these programs and data as appropriate. The CPU 31 functions as an adjustment unit that adjusts the power consumption of the load circuit 38 based on the number of records included in the parameter indicated by the parameter information.

The flash memory 34 is a non-volatile memory that stores various types of information. The RTC 35 incorporates a battery, for example, and keeps timing while the electric device 300 is powered off. The RTC 35 includes an oscillation circuit including a crystal oscillator, for example. The touch screen 36 functions as a user interface of the electric device 300. The infrared communication interface 37 is an interface for infrared communication with the device adapter 310. In the present embodiment, it is assumed that the infrared communication interface 37 has a function of receiving at least infrared rays from the device adapter 310. The infrared communication interface 37 functions as a receiving unit that receives adjustment instruction information and parameter information from the power consumption adjustment apparatus 100. The load circuit 38 is a circuit provided according to the function of the electric device 300. The load circuit 38 operates according to the control by the CPU 31 and consumes power supplied from the commercial power source 420.

The device adapter 310 converts information received from the power consumption adjustment apparatus 100 via the home network 610 into a format suitable for infrared communication, and transmits the converted information to the electrical device 300. The device adapter 310 has a function of relaying unidirectional communication from the power consumption adjustment device 100 to the electric device 300 or a function of relaying bidirectional communication between the power consumption adjustment device 100 and the electric device 300. Specifically, the device adapter 310 relays broadcast transmission of adjustment instruction information and parameter information from the power consumption adjustment device 100 to the electric device 300. In the present embodiment, it is assumed that one device adapter 310 is provided for a plurality of electric devices, but one device adapter 310 may be provided for one electric device 300. The device adapter 310 may transmit information to the electrical device 300 by communication according to a standard such as Wi-Fi or Bluetooth (registered trademark) instead of infrared communication.

The power measuring device 400 measures the total power consumption. The total power consumption is the sum of the power supplied from the commercial power source 420 to the plurality of electrical devices 300 in the demand area via a main breaker (not shown). The power measuring device 400 measures the value of the current flowing through the power line and the value of the voltage between the power lines at the trunk breaker (not shown). The power measuring device 400 obtains the total power consumption from the current value and the voltage value. In addition, the power measuring apparatus 400 calculates the total power consumption in the unit period, the cumulative total power consumption from the reference time, and the like based on the measured total power consumption. The power measuring apparatus 400 stores information indicating a physical quantity acquired by measurement or calculation. In the present embodiment, the power information indicating the total power consumption and the current information indicating the total current are transmitted to the power consumption adjustment device 100 via the power adapter 410 at a predetermined cycle (for example, every 5 seconds). Send. The total current is the total current flowing through the plurality of electric devices 300, and is the current flowing through the power line in the main breaker portion. The power measuring device 400 includes a current detection sensor, a voltage detection sensor, a flash memory, a communication interface, and the like.

The power adapter 410 is a communication adapter for connecting the power measuring device 400 to the home network 610. The power adapter 410 is connected to the power measurement device 400 via a dedicated communication line, and communicates with the power measurement device 400 via this dedicated communication line. The power adapter 410 transmits the power information and current information received from the power measurement device 400 to the power consumption adjustment device 100 via the home network 610.

The commercial power source 420 is a power source for supplying electric power to consumers by an electric power company. The power supplied from the commercial power source 420 is AC power. The commercial power source 420 supplies AC power to the demand area. In this embodiment, in order to facilitate understanding, it is assumed that power is not supplied from the demand area to the commercial power supply 420 (that is, there is no reverse power flow).

The power cloud server 510 is a server that provides resources in cloud computing, and is a server that provides resources related to power. The power cloud server 510 transmits a demand response to the power consumption adjustment apparatus 100 via the outside network 620. The demand response includes, for example, a total power consumption adjustment request and includes target power.

The HEMS cloud server 520 is a server that provides resources in cloud computing, and a server that provides resources related to HEMS. The HEMS cloud server 520 is connected to the power consumption adjustment device 100 and the terminal device 530 via the outside network 620 and has a function of connecting the terminal device 530 to the power consumption adjustment device 100.

The terminal device 530 is a device that communicates with the power consumption adjustment device 100 via the outside network 620. Similarly to the display device 200, the terminal device 530 functions as a user interface of the power consumption adjustment device 100. The terminal device 530 is a terminal device for accessing the power consumption adjustment device 100 from outside the house. In consideration of safety, functions that can be executed from the terminal device 530 may be limited. For example, the remote operation for the electric device 300 may not be executed from the terminal device 530 but may be executed from the display device 200. The terminal device 530 is, for example, a personal computer, a smartphone, a mobile phone, a tablet terminal, or the like.

The home network 610 is a network constructed in the home, and is a network for devices connected to the home network 610 to communicate with each other. The home network 610 is, for example, a wireless LAN.

The outside network 620 is a network constructed outside the house, and is a network for devices connected to the outside network 620 to communicate with each other. The outside network 620 is, for example, a WAN (Wide Area Network). The outside network 620 is, for example, the Internet.

Next, basic functions of the power consumption adjusting apparatus 100 will be described with reference to FIG. Functionally, the power consumption adjustment apparatus 100 includes a power information acquisition unit 101, a list generation unit 102, a storage unit 103, a transmission unit 104, and a time measuring unit 105.

The power information acquisition unit 101 acquires power information indicating the total power consumption of the plurality of electrical devices 300. For example, the power information acquisition unit 101 receives power information indicating the total power consumption from the power measurement device 400 at a cycle of 5 seconds. Note that the power information acquisition unit 101 may receive power amount information indicating the total power consumption for 5 seconds from the power measurement device 400 in a cycle of 5 seconds. In this case, the power information acquisition unit 101 can acquire total power consumption (average value of total power consumption) by total power consumption (W) = total power consumption (Ws) ÷ 5 (s). Note that the plurality of electric devices 300 are used in places where power is demanded. The function of the power information acquisition unit 101 is realized by the function of the home communication interface 17, for example.

When the total power change amount exceeds the power threshold, the list generation unit 102 adds a record corresponding to the first electric device to the list. The total power change amount is a change amount per unit time of the total power consumption. The unit time is, for example, 5 minutes. The first electric device is an electric device in which the individual power change amount exceeds the power change threshold among the plurality of electric devices 300 used in the demand area. The power change threshold value is a threshold value for determining whether or not the electric device 300 is an electric device having a large power consumption fluctuation, that is, a high-power electric device. The power change threshold is 500 W, for example. The individual power change amount is a change amount per unit time of the power consumption of the electric device 300.

In the present embodiment, it is basically assumed that one record is generated for one first electric device, and the number of records included in the list is regarded as the number of first electric devices. . In this specification, “list” means data including one or more “records”, and “record” refers to data including data corresponding to the first electrical device (for example, individual power variation). means. Therefore, for example, data including one or more data corresponding to the first electric device corresponds to a “list” in the present specification. The function of the list generation unit 102 is realized by, for example, the cooperation of the CPU 11 and the RAM 13.

Here, it is preferable that the record includes an individual power change amount. This is because it is possible to easily suppress the addition of a plurality of records to the list for one first electric device.

The storage unit 103 stores various information related to power adjustment. The storage unit 103 includes a list storage unit 1031. The list storage unit 1031 stores the list generated by the list generation unit 102. The functions of the storage unit 103 and the list storage unit 1031 are realized by the function of the flash memory 14, for example.

The transmission unit 104 transmits adjustment instruction information and parameter information to the plurality of electrical devices 300. The adjustment instruction information is information indicating that the power consumption should be adjusted. The parameter information is information indicating parameters. This parameter contains the number of records in the list. The transmission unit 104 transmits the adjustment instruction information and the parameter information to all the electric devices 300 by unidirectional communication. The function of the transmission part 104 is implement | achieved, for example, when CPU11 and the home communication interface 17 cooperate.

The transmission unit 104 may transmit the adjustment instruction information and the parameter information to the plurality of electric devices 300 when the deviation power that is the difference between the total power consumption and the target power exceeds the allowable value. In this case, it is preferable to include the deviation power in the parameter.

The list is composed of one or more records, and one record corresponds to one first electric device that is considered to be a high-power electric device. Therefore, when a first electrical device corresponding to a record that has not been added to the list is newly discovered, a record corresponding to the newly discovered first electrical device is added to the list. The method in which the list generation unit 102 generates a list, more specifically, the method in which the list generation unit 102 adds a record to the list can be adjusted as appropriate. Here, two methods will be described.

In the first method, the list generation unit 102 includes a record including an individual power change amount in which the total power change amount exceeds the power change threshold value and the difference from the total power change amount is equal to or less than the power difference threshold value. If not, a new record including the total power change amount is added to the list as the individual power change amount. Whether or not the power difference threshold is the individual power change amount of the first electrical device discovered this time and the individual power change amount of the first electrical device that has already been discovered are the same individual power change amount of the first electrical device. It is a threshold value for discriminating. The power difference threshold value may be, for example, 10% of the total power change amount or a fixed value of about 100 W. The power difference threshold value may be adjusted to such a magnitude that fluctuations in power consumption due to mode change can be ignored.

In the present embodiment, the total power change amount is regarded as the individual power change amount of the first electrical device discovered this time. In the first method, first, when the total power consumption changes significantly (increases or decreases), it is considered that the power consumption of the first electric device that is a high-power electric device has changed. And when the record corresponding to the 1st electric equipment which is individual electric power variation | change_quantity corresponding to total electric power variation | change_quantity has not been registered into the list | wrist, it is considered that the new 1st electrical equipment was discovered. According to the first method, it is possible to suppress a plurality of records from being added to the list for one first electric device by a simple process. That is, according to the first method, the number of first electric devices can be accurately specified by a simple process.

In the first method, when there are a plurality of first electric devices having the same individual power change amount or a small difference between the individual power change amounts, only one record is added. The second method is highly likely to accurately identify the number of first electric devices even when there are a plurality of first electric devices having the same individual power change amount or a small difference in individual power change amount. It is a technique. In the second method, the record further includes operating state information indicating one of an on state and an off state as the operating state of the first electrical device.

When the total power consumption increases and the total power change amount exceeds the power change threshold and the first record is included in the list, the list generation unit 102 includes the operation state information indicating the on state. Update one record. The first record is a record including an individual power change amount whose difference from the total power change amount is equal to or less than a power difference threshold value and operating state information indicating an off state. That is, if the list generation unit 102 determines that the increase in the total power consumption detected this time is due to a change in the state of the first electrical device that has been discovered and is on, the list generation unit 102 discovers a new first electrical device. I don't think I did it. Instead, the list generation unit 102 assumes that the first electrical device that has been discovered and is in the off state has been turned on. When there are a plurality of first records, the first record with the latest update time indicated by the update time information included in the first record is updated. According to such processing, a record corresponding to the first electric device excluded from the power consumption adjustment system 1000 is unlikely to remain in the list.

On the other hand, when the total power consumption increases and the total power change amount exceeds the power change threshold and the first record is not included in the list, the list generation unit 102 sets the total power change amount as the individual power change amount. A new record including the operating state information indicating the ON state is added to the list.

When the total power consumption is reduced and the total power change amount exceeds the power change threshold and the second record is included in the list, the list generation unit 102 includes the operation state information indicating the off state. Update 2 records. The second record is a record including an individual power change amount whose difference from the total power change amount is equal to or less than a power difference threshold value and operating state information indicating an ON state. That is, if the list generation unit 102 determines that the decrease in the total power consumption detected this time is due to a change in the state of the first electrical device that has been discovered and is in the on state, the list creation unit 102 discovers a new first electrical device. I don't think I did it. Instead, the list generation unit 102 considers that the first electrical device that has been discovered and is in the on state is in the off state. When there are a plurality of second records, the second record with the latest update time indicated by the update time information included in the second record is updated. According to such processing, a record corresponding to the first electric device excluded from the power consumption adjustment system 1000 is unlikely to remain in the list.

On the other hand, when the total power consumption decreases and the total power change amount exceeds the power change threshold and the second record is not included in the list, the list generation unit 102 sets the total power change amount as the individual power change amount. A new record including the operating state information indicating the off state is added to the list.

In the second method, even when there are a plurality of first electric devices having the same individual power change amount or a small difference between the individual power change amounts, such a plurality of first electric devices are simultaneously turned on or off. When it reaches the state, multiple records are added to the list. That is, in the second method, the number of first electrical devices can be specified more accurately.

Here, the record may include update time information indicating the update time of the record. In this case, when updating a record included in the list, the list generation unit 102 updates the update time information included in the update target record. Then, the list generation unit 102 deletes, from the list, a record including update time information indicating an update time in which the elapsed time up to the current time exceeds the time threshold among the records included in the list. The time threshold is, for example, one month. According to such a configuration, the first electric device that is considered not to contribute to power adjustment (for example, the first electric device that is excluded from the power consumption adjustment system 1000 due to device replacement, the first electric device that is considered to exist due to a false discovery). Equipment) can be expected to be eliminated. Therefore, the number of first electrical devices can be specified more accurately.

The time measuring unit 105 supplies current time information indicating the current time to the list generating unit 102. The function of the time measuring unit 105 is realized by the function of the RTC 15, for example.

Next, the flow of information related to power adjustment will be described with reference to FIG. First, the power measuring apparatus 400 measures the total power consumption (step S1), and transmits the total power consumption to the power consumption adjusting apparatus 100 (step S2). The power consumption adjusting apparatus 100 calculates the deviation power (step S3) and determines the deviation power (step S4). When the deviation power is less than or equal to the allowable value, the power consumption adjustment apparatus 100 does not perform alert notification or common parameter notification.

The power measurement device 400 measures the total power consumption after T seconds (for example, 5 seconds) have elapsed from the previous measurement of the total power consumption (step S1) (step S5), and the power consumption adjustment device 100 determines the total power consumption. Power is transmitted (step S6). Here, the power consumption adjusting apparatus 100 calculates the deviation power (step S7) and determines the deviation power (step S8). When the deviation power exceeds the allowable value, the power consumption adjustment apparatus 100 performs alert notification to the plurality of electrical devices 300 through broadcast communication (step S9) and common parameter notification (step S10). . On the other hand, when receiving the alert notification or the common parameter notification, the plurality of electrical devices 300 calculate the adjusted power (step S11) and execute the power adjustment (step S12).

The power measuring apparatus 400 measures the total power consumption after T seconds have elapsed from the previous measurement of the total power consumption (Step S5) (Step S13), and transmits the total power consumption to the power consumption adjusting apparatus 100 (Step S13). S14). The power consumption adjusting apparatus 100 calculates the deviation power (step S15) and determines the deviation power (step S16). When the deviation power exceeds the allowable value, the power consumption adjusting apparatus 100 performs alert notification by broadcast communication to the plurality of electrical devices 300 (step S17) and common parameter notification (step S18). . On the other hand, when receiving the alert notification or the common parameter notification, the plurality of electrical devices 300 calculate the adjusted power (step S19) and execute the power adjustment (step S20).

As described above, the power measuring apparatus 400 measures the total power consumption at a cycle of T seconds and transmits the total power consumption to the power consumption adjusting apparatus 100. On the other hand, when the deviation power that is the difference between the total power consumption and the target power exceeds the allowable value, the power consumption adjustment apparatus 100 broadcasts an alert notification and a common parameter notification to the plurality of electrical devices 300. Here, when the alert notification is received, the plurality of electrical devices 300 calculate the adjustment power according to the common parameter included in the common parameter notification, and execute the power adjustment. Thereafter, these operations are repeated for a predetermined allowable control duration (for example, 1 to 15 minutes or no time limit) from the first alert notification until the deviation power becomes below the allowable value. It is assumed that the allowable control duration time is set in the power consumption adjusting device 100. In such a configuration, the parameter only needs to be stored in the power consumption adjustment device 100, and may not be stored in the plurality of electrical devices 300. Therefore, even when the electric device 300 is newly added, it is not necessary to store parameters in the added electric device 300, and no effort is required.

Next, how a list is generated by the list generation process will be described with reference to FIGS. First, the power consumption adjustment system 1000 includes at least an electric device A whose on-state power consumption is 800 W, an electric device B whose on-state power consumption is 600 W, and an electric device whose on-state power consumption is 500 W. Assume that the device C and the electric devices D, E, and F whose power consumption in the on state is 100 W are included. It is assumed that power consumption of electrical appliances AF is 0 W in the off state. As shown in FIG. 7, the list includes one or more records including a record number, an individual power change amount (W), an operation state (operation state information), and an update time (update time information). It shall be.

Record number is a number indicating the order in which records are added to the list. The individual power change amount (W) is a change amount of power consumption per unit time of the first electrical device corresponding to the record. The operating state is an operating state of the first electrical device corresponding to the record. The update time is the time when the record was last updated. When the record is never updated, the update time is the time when the record is added to the list.

FIG. 6 shows a change in the total power consumption acquired every 5 minutes. In FIG. 6, for easy understanding, the total power consumption is displayed on the assumption that the total power consumption is constant for 5 minutes after the total power consumption is acquired until the next time the total power consumption is acquired. is doing. Here, it is assumed that the power change threshold is 400 W and the power difference threshold is 80 W. In addition, at the time before t1, it is assumed that no record is included in the list.

First, when the electric device A is turned on at t1, the total power consumption increases by 800W. Then, the total power change amount (800 W) exceeds the power change threshold value (400 W). Since there is no record at this time, there is no first record in the list that includes an individual power change amount whose difference from the total power change amount (800 W) is equal to or less than the power difference threshold value (80 W). Therefore, a new record (record with a record number of 1) is added to the list. The new record (record with record number 1) includes the total power change amount (800 W) as the individual power change amount, the operating state information indicating the ON state, and t1 (2016/06/24/12: 15). Update time information to be displayed.

Next, when the electric device B is turned on at t2, the total power consumption increases by 600 W, and the total power change amount (600 W) exceeds the power change threshold value (400 W). Since the first record including the individual power change amount whose difference from the total power change amount (600 W) is equal to or less than the power difference threshold value (80 W) does not exist in the list, a new record (record with record number 2) is listed. To be added. The new record (record with record number 2) includes the total power change amount (600 W) as the individual power change amount, the operating state information indicating the ON state, and t2 (2016/06/24/12: 30). Update time information to be displayed.

Next, when the electric device A is turned off at t3, the total power consumption is reduced by 800 W, and the total power change amount (800 W) exceeds the power change threshold (400 W). A second record (a record with a record number of 1) including an individual power change amount (800 W) whose difference from the total power change amount (800 W) is equal to or less than a power difference threshold value (80 W), and operating state information indicating an ON state ) Is in the list. Therefore, the second record (record with the record number 1) is updated so as to include the operation state information indicating the off state and the update time information indicating t3 (2016/06/24/12: 50).

Next, when the electric device D is turned on at t4, the total power consumption increases by 100 W, but the total power change amount (100 W) does not exceed the power change threshold (400 W). Further, when the electric device E is turned on at t5, the total power consumption increases by 100 W, but the total power change amount (100 W) does not exceed the power change threshold (400 W). Further, when the electric device F is turned on at t6, the total power consumption increases by 100 W, but the total power change amount (100 W) does not exceed the power change threshold (400 W). Therefore, no record is added or updated at t4, t5, and t6.

Next, when the electric device C is turned on at t7, the total power consumption increases by 500 W, and the total power change amount (500 W) exceeds the power change threshold (400 W). Since the first record including the individual power change amount whose difference from the total power change amount (500 W) is equal to or less than the power difference threshold value (80 W) does not exist in the list, a new record (record with record number 3) is listed. To be added. The new record (record with record number 3) includes the total power change amount (500 W) as the individual power change amount, the operating state information indicating the ON state, and t7 (2016/06/24/13: 20). Update time information to be displayed.

Next, when the electric device B is turned off at t8, the total power consumption is reduced by 600 W, and the total power change amount (600 W) exceeds the power change threshold (400 W). A second record (a record with a record number of 2) including an individual power change amount (600 W) whose difference from the total power change amount (600 W) is equal to or less than a power difference threshold value (80 W) and operating state information indicating an ON state ) Is in the list. Therefore, the second record (record with record number 2) is updated so as to include the operation state information indicating the off state and the update time information indicating t8 (2016/06/24/13: 40). Then, the list shown in FIG. 7 is completed.

Next, a list generation process executed by the power consumption adjusting apparatus 100 will be described with reference to FIG. The list generation process is started, for example, in response to the power consumption adjusting apparatus 100 being turned on.

First, the CPU 11 determines whether or not the current time is the power information acquisition time (step S101). The power information acquisition time is a time that arrives at a predetermined cycle. This period is the unit time described above. This period is set to a sufficiently long time so that the amount of change in the power consumption of the first electrical device exceeds the power change threshold. For example, this period is set to a time (for example, 5 minutes) that is sufficiently longer than the time required for the first electrical device to switch from the off state to the on state. The CPU 11 can specify the current time from the current time information acquired from the RTC 15.

When the CPU 11 determines that the current time is not the power information acquisition time (step S101: NO), the CPU 11 returns the process to step S101. On the other hand, when the CPU 11 determines that the current time is the power information acquisition time (step S101: YES), the CPU 11 acquires power information (step S102). The CPU 11 acquires power information from the power measuring device 400 via the home communication interface 17. The CPU 11 can store the acquired power information and acquisition time information indicating the time when the power information is acquired in the flash memory 14.

CPU11 will complete | finish the process of step S102, and will discriminate | determine whether total electric power variation exceeds a power variation threshold value (step S103). The total power change amount is based on the total power consumption indicated by the power information acquired last time (power information acquired one unit time before the current time (for example, 5 minutes before)) and the power information acquired this time. This is the difference from the total power consumption shown. The CPU 11 can specify the total power change amount based on the power information and the acquisition time information stored in the flash memory 14 in step S102. Further, it is assumed that the power change threshold value is stored in the flash memory 14 in advance.

When the CPU 11 determines that the total power change amount does not exceed the power change threshold (step S103: NO), the CPU 11 returns the process to step S101. On the other hand, when determining that the total power change amount exceeds the power change threshold (step S103: YES), the CPU 11 determines whether the total power consumption has increased (step S104). When determining that the total power consumption has increased (step S104: YES), the CPU 11 determines whether there is a first record in the list (step S105). Note that the first record is a record including an individual power change amount whose difference from the total power change amount is equal to or less than the power difference threshold value, and is a record including operating state information indicating an off state.

When the CPU 11 determines that there is a first record in the list (step S105: YES), the CPU 11 updates the first record so as to include operating state information indicating an on state (step S106). The CPU 11 updates the update time information together with the operating state information. When completing the process in step S106, the CPU 11 returns the process to step S101.

If the CPU 11 determines that the total power consumption has not increased (step S104: NO), it determines whether there is a second record in the list (step S107). The second record is a record including an individual power change amount whose difference from the total power change amount is equal to or less than a power difference threshold value, and includes state information indicating an ON state.

When the CPU 11 determines that the second record exists in the list (step S107: YES), the CPU 11 updates the second record so as to include the operation state information indicating the off state (step S108). The CPU 11 updates the update time information together with the operating state information. When completing the process in step S108, the CPU 11 returns the process to step S101.

If the CPU 11 determines that there is no first record in the list (step S105: NO), or determines that there is no second record in the list (step S107: NO), the CPU 11 adds a new record to the list. (Step S109). The CPU 11 adds the total power change amount as the individual power change amount, the operation state information, and the update time information indicating the current time to the new record and adds it to the list. When the total power consumption increases, the CPU 11 includes the operating state information indicating the on state in a new list, and when the total power consumption decreases, the CPU 11 includes the operating state information indicating the off state in the new list.

When the CPU 11 completes the process of step S109, the CPU 11 updates the number of records included in the list (step S110). For example, the CPU 11 counts the number of records included in the list, and stores the number of records in the flash memory 14 as the number of first electric devices. When completing the process in step S110, the CPU 11 returns the process to step S101.

The CPU 11 determines whether or not the deviation power, which is the difference between the total power consumption and the target power, exceeds the allowable value at a predetermined cycle (5 seconds). When the CPU 11 determines that the deviation power exceeds the allowable value, the CPU 11 broadcasts adjustment instruction information and parameter information indicating parameters including the deviation power and the number of records to the plurality of electrical devices 300. On the other hand, each of the plurality of electrical devices executes power adjustment processing based on the parameter indicated by the parameter information. Hereinafter, with reference to FIG. 9 and FIG. 10, the power adjustment process executed by the electric device 300 will be described. In the present embodiment, the electric device 300 employs a split method using a priority and a return priority as an algorithm for power adjustment. In the first round, the electric device 300 determines the adjustment amount of the own device based on the deviation power and the priority of the own device. Then, in the second round, the electric device 300 determines the adjustment amount of the own device based on the adjustment error and the return priority of the own device.

Here, the deviation power is P1, the number of high-power electric devices is N, the system sensitivity is S, the priority is Q1, the return priority is Q2, the power consumption rated value of the electric device 300 is P2, and the electric device 300 is instantaneous. The adjustable power is P3, the target adjustment power for the first round of the electric device 300 is P4, and the target adjustment power for the second round of the electric device 300 is P5. The instantaneous adjustable power is power that can be adjusted instantaneously by changing the mode or operating state. The instantaneous adjustable power is, for example, the difference between the power consumption in the normal mode and the power consumption in the energy saving mode, or the difference between the power consumption in the off state and the power consumption in the on state. When the electric device 300 takes only two states of an off state and an on state, the instantaneous adjustable power is basically the same as the rated value of power consumption. P1, N, and S are parameters shared by all electric devices 300. On the other hand, Q 1, Q 2, P 2, P 3, and P 4 are parameters specific to the electric device 300 and may be different for each electric device 300. In this embodiment, Q1 = (P2 / P3) × N, Q2 = (N−1) × (Q1 / Q1-1), P4 = P1 × S / Q1, and P5 = P1 × S / Q2. .

For example, P1 = 12000W (total power consumption is 12000W larger than the target power), N = 4, and S = 1. In addition, (P2 / P3) = 1 for electric device A, (P2 / P3) = 1.5 for electric device B, (P2 / P3) = 2 for electric device C, and (P2 / P3) = for electric device D. 3. In this case, Q1 = 2 for the electric device A, Q1 = 3 for the electric device B, Q1 = 4 for the electric device C, and Q1 = 6 for the electric device D. Then, P4 = 6000W for the electric device A, P4 = 4000W for the electric device B, P4 = 3000W for the electric device C, and P4 = 2000W for the electric device D. That is, when the first round is completed, the total adjustment amount is 6000 W + 4000 W + 3000 W + 2000 W = 15000 W. In this case, since the total adjustment amount of 15000 W is larger than the deviation power of 12000 W, the excess adjustment amount is 3000 W. In this case, P1 = 3000 W (total power consumption is 3000 W smaller than the target power). When the allowable value is smaller than 3000 W, the second round is entered.

In the second round, the electric device A has P4 = 500 W, the electric device B has P4 = 667 W, the electric device C has P4 = 1000 W, and the electric device D has P4 = 1000 W. That is, in the second round, the total adjustment amount is 15000 W− (500 W + 667 W + 1000 W + 1000 W) = 11833 W. That is, when the second round is completed, the deviation power is 167 W (total power consumption is 167 W larger than the target power). If the tolerance is greater than 167W, the power adjustment is complete.

Next, with reference to FIG. 10, a power adjustment process executed by the electric device 300 will be described. The power adjustment process is executed in response to the power supply of the electric device 300 being turned on.

First, the CPU 31 determines whether or not adjustment instruction information and parameter information have been received (step S201). The CPU 31 monitors the infrared communication interface 37 to determine whether or not adjustment instruction information and parameter information have been received from the power consumption adjustment device 100. When determining that the adjustment instruction information and the parameter information have not been received (step S201: NO), the CPU 31 returns the process to step S201. On the other hand, when determining that the adjustment instruction information and the parameter information have been received (step S201: YES), the CPU 31 calculates a priority (step S202).

CPU31 will complete | finish the process of step S202, and will discriminate | determine whether the electric power adjustment of the 1st round is not performed (step S203). When determining that the first round of power adjustment has not been executed (step S203: YES), the CPU 31 calculates the target adjustment power using the priority (step S204). On the other hand, if the CPU 31 determines that the power adjustment of the first round is not yet executed (step S203: NO), the CPU 31 calculates the return priority (step S205). When completing the process in step S205, the CPU 31 calculates the target adjustment power using the return priority (step S206). CPU31 adjusts electric power based on the calculated target adjustment amount, when the process of step S204 or step S206 is completed (step S207). When completing the process in step S207, the CPU 31 returns the process to step S201.

In the present embodiment, when the total power change amount, which is the change amount of total power consumption per unit time, exceeds the power change threshold value, the individual power change amount, which is the change amount of power consumption per unit time, sets the power change threshold value. Records corresponding to more electrical devices are added to the list, and adjustment instruction information indicating that power consumption should be adjusted and parameter information indicating parameters including the number of records included in the list are transmitted to a plurality of electrical devices. Is done. That is, in this embodiment, even if a large power electrical device with large power consumption is added or deleted and the number of large power electrical devices fluctuates, the number of large power electrical devices is automatically updated, and the power Information indicating the number at the time of adjustment is transmitted to a plurality of electrical devices. Therefore, according to the present embodiment, the accuracy of power consumption adjustment can be maintained without increasing the user's burden.

(Embodiment 2)
In the first embodiment, an example has been described in which an electrical device having a relatively large amount of change in power consumption per unit time (individual power change amount) is regarded as a high power electrical device. However, even a high-power electric device has an electric device with a relatively small amount of individual power change, such as an inverter device. Such a high-power electric device is not easily detected by the method of the first embodiment. Therefore, in the second embodiment, an example will be described in which an electric device having a relatively large harmonic component of a flowing current is regarded as a high-power device in addition to an electric device having a relatively large individual power change amount. In the second embodiment, the description of the same parts as those in the first embodiment is omitted or simplified. The configuration of the power consumption adjustment system according to the second embodiment is basically the same as the configuration of the power consumption adjustment system 1000 according to the first embodiment.

First, a basic function of the power consumption adjusting apparatus 110 according to the present embodiment will be described with reference to FIG. Functionally, the power consumption adjustment apparatus 110 includes a power information acquisition unit 101, a list generation unit 102, a storage unit 103, a transmission unit 104, a time measurement unit 105, and a current information acquisition unit 106. The power consumption adjustment apparatus 110 basically includes a point that the list generation unit 102 generates a sublist, a point that the storage unit 103 includes a sublist storage unit 1032, and a transmission unit 104 that includes the number of records included in the list and the sublist. Is different from the power consumption adjusting apparatus 100 in that the total value of the number of records included in the data is handled as the number of high-power electric devices and the current information acquisition unit 106 is provided.

The current information acquisition unit 106 acquires current information indicating the total current flowing through the plurality of electrical devices 300. The current information is information indicating the value of the current flowing through the main breaker, and is information indicating the total value of the current flowing through the plurality of electrical devices 300. Hereinafter, the “current value” is simply referred to as “current” as appropriate. The function of the current information acquisition unit 106 is realized by the function of the home communication interface 17, for example. In the present embodiment, the power measurement apparatus 400 transmits current information indicating the total current to the power consumption adjustment apparatus 110 via the power adapter 410. For example, the power measuring device 400 transmits current information indicating the total current for one cycle to the power consumption adjusting device 110 at a predetermined cycle (for example, every 5 seconds).

The list generation unit 102 generates a sublist including one or more records corresponding to the second electrical device based on the harmonic component of the total current. The second electric device is an electric device in which the magnitude of the harmonic component of the flowing current out of the plurality of electric devices 300 used in the demand area exceeds the first current threshold value. That is, the second electric device is an electric device having a relatively large harmonic component, and is typically an inverter device. The inverter device is, for example, an air conditioner, IHCH, or rice cooker.

The harmonic component is a component having a frequency obtained by multiplying the fundamental frequency (for example, 50 Hz or 60 Hz) by an integer. The harmonic component is a current component having a predetermined frequency (2 kHz) or more. The harmonic component can be obtained by filtering the current with a high-pass filter. The high pass filter may be a digital filter or an analog filter. The digital filter can be realized, for example, when the CPU 11 cooperates with the RAM 13. The characteristics of the harmonic component are, for example, the magnitude of the harmonic component (average current value of the harmonic component), the phase position where the harmonic component exceeds the second current threshold, and the phase position where the harmonic component exceeds the second current threshold. The average current value or the maximum current value at. The phase position is a position in the phase of the AC voltage (0 degrees to 360 degrees).

That is, since the phase position with a large harmonic component differs for each inverter device, the inverter device can be identified by specifying the phase position with a large harmonic component. Note that the waveform of the current flowing through the electrical device 300 (hereinafter referred to as “current waveform”) basically does not change much during one period (50 Hz or 60 Hz). That is, the same current waveform is repeated every cycle. The same applies to high-power electrical equipment. Therefore, the same current waveform is repeated every cycle for the harmonic component of the current flowing through the high-power electric device. In other words, the characteristics of the harmonic component of the current flowing through the high-power electric device hardly change unless the state of the high-power electric device changes. For this reason, the current flowing through the high-power electric device may be a current waveform for one cycle, or may be an average of current waveforms for a predetermined number (for example, 50 or 60). Good. The first current threshold value is a threshold value for determining whether or not the total current includes a harmonic component. The first current threshold is, for example, 0.5A. For example, if the magnitude of the harmonic component of the total current (the average value of the absolute value of the total current that has passed through the high-pass filter) exceeds the first current threshold, the total current is considered to contain the harmonic component. The

Here, it is preferable that the record corresponding to the second electric device includes characteristic information indicating the characteristic of the harmonic component of the current flowing in the second electric device. This is because it is possible to easily suppress the addition of a plurality of records to the sublist for one second electric device.

Here, the parameter includes the total number of records included in the list and the number of records included in the sublist. The method in which the list generation unit 102 generates the sublist, more specifically, the method in which the list generation unit 102 adds the record to the sublist can be adjusted as appropriate. Here, two methods will be described.

In the first method, the list generation unit 102 includes a record including feature information indicating a feature in which the magnitude of the harmonic component of the total current exceeds the first current threshold and matches the feature of the harmonic component of the total current. If not in the sublist, add a new record to the sublist. The new record includes characteristic information indicating the characteristics of the harmonic component of the total current as the characteristics of the harmonic component of the current flowing through the second electrical device.

In the first method, when a harmonic component is included in the total current, it is considered that the second electric device that is a high-power electric device is in operation. Then, if the sub-list does not include a record including feature information indicating a feature that matches the feature of the harmonic component of the total current, it is considered that a new second electric device has been found. According to the first method, it is possible to suppress a plurality of records from being added to the sublist for one second electric device by a simple process. That is, according to the first method, the number of second electric devices can be accurately specified by a simple process.

In the first method, when there are a plurality of second electric devices having similar characteristics of harmonic components of the flowing current, only one record is added. The second method is a method that has a high possibility of accurately specifying the number of second electric devices even when there are a plurality of second electric devices having similar characteristics of harmonic components of the flowing current. . In the second method, the records included in the sublist further include operating state information indicating either the on state or the off state as the operating state of the second electrical device.

When the increase amount per unit time of the magnitude of the harmonic component of the total current exceeds the first current threshold and the third record is included in the sublist, the list generation unit 102 is in an operating state information indicating an on state. The third record is updated to include The third record is a record including feature information indicating a feature that matches a change per unit time of a feature of the harmonic component of the total current, and including a record of operating state information indicating an off state. is there. In other words, the list generation unit 102 has already been found when the change in the characteristic of the harmonic component of the total current matches any of the characteristics of the harmonic component of the second electrical device that has been found and has been turned off. It is assumed that a certain second electric device has been switched on. When there are a plurality of third records, the third record with the latest update time indicated by the update time information is updated. According to such processing, a record corresponding to the excluded second electrical device is unlikely to remain in the sublist.

On the other hand, when the increase amount per unit time of the magnitude of the harmonic component of the total current exceeds the first current threshold and the third record is not included in the sublist, the list generation unit 102 selects a new record as a subrecord. Add to list. The new record includes the feature information indicating the change per unit time of the harmonic component characteristic of the total current as the characteristic of the harmonic component of the current flowing through the second electrical device, and includes the operating state information indicating the on state. It is a record. That is, the list generation unit 102 is not found when the change in the characteristic of the harmonic component of the total current does not match any of the characteristics of the harmonic component of the second electrical device that has been found and is in the off state. It is assumed that the second electrical device has been switched on.

The list generation unit 102, when the reduction amount per unit time of the magnitude of the harmonic component of the total current exceeds the first current threshold and the fourth record is included in the sublist, the operating state information indicating the off state The fourth record is updated to include The fourth record is a record including feature information indicating a feature that matches a change per unit time of the feature of the harmonic component of the total current, and is a record including operating state information indicating the ON state. That is, the list generation unit 102 has already been found when the change in the characteristics of the harmonic components of the total current matches any of the characteristics of the harmonic components of the second electrical device that has been found and is on. It is assumed that a certain second electric device has been switched off. When there are a plurality of fourth records, the fourth record with the latest update time indicated by the update time information is updated. According to such processing, a record corresponding to the excluded second electrical device is unlikely to remain in the sublist.

On the other hand, if the reduction amount per unit time of the magnitude of the harmonic component of the total current exceeds the first current threshold and the fourth record is not included in the sublist, the list generation unit 102 sets a new record as a subrecord. Add to list. The new record includes the feature information indicating the change per unit time of the harmonic component characteristic of the total current as the characteristic of the harmonic component of the current flowing through the second electrical device, and includes the operating state information indicating the on state. It is a record. That is, the list generation unit 102 is not found when the change in the characteristics of the harmonic components of the total current does not match any of the characteristics of the harmonic components of the second electrical device that has been found and is on. It is assumed that the second electric device has been switched off.

In the second method, even when there are a plurality of second electrical devices having similar characteristics of the harmonic components of the flowing current, the plurality of second electrical devices cannot be turned on or off at the same time. Multiple records are added to the list. That is, in the second method, the number of second electric devices can be specified more accurately. Similar to the records included in the list, the records included in the sublist can include update time information indicating the update time of the records.

Here, the characteristic of the harmonic component of the current flowing through the second electric device preferably includes a phase position where the harmonic component of the current flowing through the second electric device exceeds the second current threshold. That is, it is easy to identify the second electric device by regarding the phase position having a large harmonic component as a characteristic of the second electric device.

Furthermore, it is preferable that the characteristic of the harmonic component of the current flowing through the second electric device further includes the magnitude of the harmonic component at the phase position of the current flowing through the second electric device. In this case, it can be expected that the identification accuracy of the determination of the second electric device is improved.

Next, with reference to FIG. 12 and FIG. 13, the harmonic component of the current flowing through the second electrical device will be described. In FIG. 12, the broken line indicates the AC voltage output from the commercial power supply 420, the thick solid line indicates the current flowing through the air conditioner that is the second electric device, and the thin solid line indicates the current flowing through the IHCH that is the second electric device. Show. As shown in FIG. 12, the waveform pattern of the current that flows during one cycle of the AC voltage differs for each type of the second electrical device.

Also, the waveform pattern of the harmonic component of the current flowing during one cycle of the AC voltage is different for each type of the second electrical device. FIG. 13 shows a waveform pattern of a high-frequency component (for example, a current after passing the total current through a 2 kHz high-pass filter) of the total current flowing during one cycle of the AC voltage. FIG. 13 shows a harmonic component 810 at a phase position indicated by P1 (80 degrees), a harmonic component 820 at a phase position indicated by P2 (220 degrees), and indicated by P3 (80 degrees). A harmonic component 830 is shown at the phase position to be detected. Here, the harmonic component 810 and the harmonic component 830 are harmonic components of the current flowing through the air conditioner, and the harmonic component 820 is a harmonic component of the current flowing through the IHCH.

For example, when both the air conditioner and the IHCH are in the off state, none of the harmonic component 810, the harmonic component 820, and the harmonic component 830 appears in the harmonic component of the total current. Here, when the air conditioner is switched to the ON state, a harmonic component 810 and a harmonic component 830 appear in the harmonic component of the total current. Furthermore, when IHCH is switched to the on state, a harmonic component 820 appears in the harmonic component of the total current. Further, when the air conditioner is switched to the off state, the harmonic component 810 and the harmonic component 830 are excluded from the harmonic components of the total current. FIG. 14 shows a sublist created in this case.

As shown in FIG. 14, the sublist includes one or more records including a record number, a phase position (degree), a current value (A), an operating state (operating state information), and an update time (update time information). included. The record number is a number indicating the order in which the records are added to the sublist. The phase position (degree) is a phase position at which the harmonic component of the current flowing through the second electrical device corresponding to the record exceeds the second current threshold value. When there are a plurality of such phase positions, a plurality of phase positions are included in the record. The current value (A) is the current value of the high frequency component at the phase position. This current value (A) may be the maximum value of current near this phase position, or may be the average value of absolute values of current near this phase position. The current value (A) is included in the record by the number corresponding to the phase position. The operating state is an operating state of the second electric device corresponding to the record. The update time is the time when the record was last updated. If the record has never been updated, the update time is the time when the record was added to the sublist.

Next, a list generation process executed by the power consumption adjustment device 110 will be described with reference to FIG. The list generation process is started in response to, for example, the power consumption adjusting device 110 being turned on. The list generation process executed by the power consumption adjustment apparatus 110 includes a step S302 when the process of step S301 is executed between the process of step S102 and the process of step S103, and when NO is determined in step S103. The point that the process of step S101 is executed after the process is executed is different from the list generation process executed by the power consumption adjusting apparatus 100.

CPU11 acquires electric current information, when the process of step S102 is completed (step S301). The CPU 11 can acquire current information from the power measurement device 400 via the home communication interface 17. The CPU 11 can store the acquired current information and the acquisition time information indicating the time when the current information is acquired in the flash memory 14. When completing the process of step S301, the CPU 11 executes the process of step S103. If the CPU 11 determines in step S103 that the total power change amount does not exceed the power change threshold (step S103: NO), the CPU 11 executes a sublist generation process (step S302). When the CPU 11 completes the sublist generation process, the process returns to step S101. Hereinafter, the sub-list generation process will be described with reference to FIG.

First, the CPU 11 determines whether or not the harmonic change amount exceeds the first current threshold (step S303). The harmonic change amount is a change amount per unit time of the magnitude of the harmonic component of the total current. The amount of harmonic change is indicated by the total current indicated by the current information acquired last time (current information acquired one unit time before the current time (for example, 5 minutes before)) and the current information acquired this time. It is the magnitude of the harmonic component of the current that is the difference from the total current. The CPU 11 can specify the amount of harmonic change based on the current information and time information stored in the flash memory 14 in step S301. Further, it is assumed that the first current threshold is stored in the flash memory 14 in advance.

When the CPU 11 determines that the harmonic change amount does not exceed the first current threshold (step S303: NO), the CPU 11 returns the process to step S301. On the other hand, when determining that the amount of harmonic change exceeds the first current threshold (step S303: YES), the CPU 11 determines whether or not the harmonic component of the total current has increased (step S304). When determining that the harmonic component of the total current has increased (step S304: YES), the CPU 11 determines whether there is a third record in the sublist (step S305). Note that the third record is a record including feature information indicating a feature that matches the change per unit time of the feature of the harmonic component of the total current, and is a record including operating state information indicating the off state.

When the CPU 11 determines that the third record exists in the sublist (step S305: YES), the CPU 11 updates the third record so as to include the operating state information indicating the on state (step S306). The CPU 11 updates the update time information together with the operating state information. When completing the process in step S306, the CPU 11 returns the process to step S301.

CPU11 will discriminate | determine whether there exists a 4th record in a sublist, if it discriminate | determines that the harmonic component of total current is not increasing (step S304: NO) (step S307). Note that the fourth record is a record including feature information indicating a feature that matches the change per unit time of the feature of the harmonic component of the total current, and is a record including operating state information indicating the ON state.

When the CPU 11 determines that there is a fourth record in the sublist (step S307: YES), the CPU 11 updates the fourth record so as to include the operating state information indicating the off state (step S308). The CPU 11 updates the update time information together with the operating state information. When completing the process in step S308, the CPU 11 returns the process to step S301.

If the CPU 11 determines that there is no third record in the sublist (step S305: NO), or determines that there is no fourth record in the sublist (step S307: NO), the CPU 11 adds a new record to the sublist. A record is added (step S309). The CPU 11 includes, in a new record, feature information indicating the change per unit time of the harmonic component feature of the total current as a feature of the harmonic component of the current flowing through the second electrical device, operating state information, and current time Are added to the sub-list. In addition, when the harmonic component of total current increases, CPU11 adds to the new sublist containing the operating state information which shows an ON state, and when the harmonic component of total current reduces, the operating state which shows an OFF state Add to a new sublist that contains information.

CPU11 updates the number of records contained in a sublist, when the process of step S309 is completed (step S310). For example, the CPU 11 counts the number of records included in the sublist, and stores the number of records in the flash memory 14 as the number of second electrical devices. When completing the process in step S310, the CPU 11 returns the process to step S301. When broadcasting the adjustment instruction information, the CPU 11 includes the total value of the number of records included in the list and the number of records included in the sublist in the adjustment instruction information.

In the present embodiment, in addition to an electric device having a relatively large amount of change in power consumption, an electric device having a relatively large harmonic component of the flowing current can be detected as a high-power electric device. Therefore, according to this embodiment, the number of high-power electric devices can be counted more accurately. Therefore, according to the present embodiment, the accuracy of power consumption adjustment can be maintained without increasing the user's burden.

(Embodiment 3)
In the first embodiment, an example in which the number of high-power electric devices is specified based on power information will be described. In the second embodiment, an example in which the number of high-power electric devices will be specified based on power information and current information will be described. did. The method for specifying the number of high-power electric devices is not limited to these examples. In the present embodiment, a method for specifying the number of high-power electric devices based on information acquired from the electric device 300 will be described. The power consumption adjustment system according to the third embodiment is different from the power consumption adjustment system 1000 according to the first embodiment in that the power consumption adjustment device 100 and the electric device 300 can communicate with each other. In the present embodiment, it is assumed that the infrared communication interface 37 included in the electrical device 300 is capable of transmitting information as well as receiving information. That is, the electrical device 300 can transmit information to the device adapter 310 via the infrared communication interface 37.

The power consumption adjusting apparatus 100 receives determination information for determining whether or not the electric device corresponds to one of the first electric device and the second electric device from a plurality of electric devices. A receiving unit is further provided. The determination information is, for example, information indicating the rated value of power consumption of the electric device 300 or information indicating the model of the electric device 300. For example, when the power consumption adjustment device 100 and the electric device 300 communicate with each other using the ECHONET Lite, the power consumption adjustment device 100 can receive a model property that can specify the model from the electric device 300. The function of the receiving unit is realized by the function of the home communication interface 17, for example.

The power consumption adjusting apparatus 100 can specify the rated value of the power consumption of the electric device 300 from the model property by referring to a table that associates the model property with the rated value of the power consumption, for example. In addition, the power consumption adjustment apparatus 100 specifies whether or not the electrical device 300 is an inverter device from the model property by referring to a table that associates the model property with information indicating whether or not the device is an inverter device, for example. can do. These tables should just be memorize | stored in the flash memory 14 or the HEMS cloud server 520, for example. Further, the power consumption adjusting apparatus 100 is configured such that when the rated value of power consumption of the electric device 300 exceeds a power change threshold (for example, 500 W), or when the electric device 300 is an inverter device, the electric device 300 Consider it a device. The function of the receiving unit is realized by the function of the home communication interface 17, for example. Here, the parameters indicated by the parameter information transmitted to the plurality of electric devices 300 include the total number of the first electric devices and the second electric devices based on the determination information.

In the present embodiment, whether or not the electrical device 300 is a high-power electrical device is specified based on information acquired from the electrical device 300. Therefore, in the present embodiment, the number of high-power electric devices can be accurately specified from the power information and current information even when the number of high-power electric devices cannot be accurately specified.

(Modification)
As mentioned above, although embodiment of this invention was described, when implementing this invention, a deformation | transformation and application with a various form are possible.

In the present invention, which part of the configuration, function, and operation described in the above embodiment is adopted is arbitrary. Further, in the present invention, in addition to the configuration, function, and operation described above, further configuration, function, and operation may be employed. Moreover, the structure, function, and operation | movement demonstrated in the said embodiment can be combined freely.

For example, it is possible to appropriately adjust which of the power consumption adjusting device 100, the display device 200, the power cloud server 510, the HEMS cloud server 520, and the terminal device 530 has a function. For example, the power information acquisition unit 101, the list generation unit 102, the storage unit 103, the transmission unit 104, and the timing unit 105 included in the power consumption adjustment device 100 are the display device 200, the power cloud server 510, the HEMS cloud server 520, and the terminal device. It may be provided in any of 530. That is, the functional configuration of such a power consumption adjustment system 1000 is such that the power consumption adjustment device 100, the display device 200, and the power cloud server are connected to each other via the home network 610 and the external network 620. Any of 510, the HEMS cloud server 520, and the terminal device 530 may be provided.

In the first embodiment, the example in which the first electrical device is detected based on the amount of change per unit time of the total power consumption has been described. In the first embodiment, the first electrical device may be detected based on the amount of change per unit time of the total power consumption per unit time. This is because there is no difference in the basic concept in any case if the average value of the total power consumption per unit time is regarded as the total power consumption.

When a predetermined time (for example, 4 months) has elapsed since the generation of the list or sublist, the list or sublist may be deleted to generate a new list or sublist. For example, air conditioners are frequently used in summer and winter, and thus greatly contribute to power adjustment, and are frequently used in spring and autumn, and thus are not expected to contribute greatly to power adjustment. Therefore, by regenerating the list for each season, it is possible to count the air conditioner as a high power electric device in summer and winter, and not to count the air conditioner as a high power electric device in spring or autumn. . Moreover, it is possible to suppress an increase in the number of high-power electric devices due to device replacement or misregistration by periodically regenerating the list or sublist regardless of the season.

In the first embodiment, it is assumed that there is an undetected high-power electric device from when the list is generated until a predetermined time elapses. Good. For example, the standby power and the individual power change amount of the high-power electric device that has been detected and turned on are subtracted from the total power consumption. Then, a value obtained by dividing the obtained value by the average value of the individual power change amounts can be regarded as the number of undetected high-power electric devices. In addition, for example, the total power consumption in a time zone in which the total power consumption is the smallest in one day can be regarded as standby power.

Embodiment 2 has described an example in which the average value of the absolute value of the total current after passing through the high-pass filter is regarded as the magnitude of the harmonic component of the total current. The total current may be subjected to power spectrum analysis, and the obtained intensity may be regarded as the magnitude of the harmonic component of the total current. In the second embodiment, the example in which the current (current waveform) for one cycle of the AC voltage is employed has been described. You may employ | adopt the average value of the electric current (current waveform) for a predetermined period (for example, 50 period or 60 period). In addition, when calculating | requiring the average value of an electric current (current waveform), it is good to overlap an electric current (current waveform) on the basis of the point where an alternating voltage zero-crosses.

Embodiment 1 has described an example in which adjustment instruction information and parameter information are broadcast to a plurality of electrical devices 300 when the deviation power exceeds an allowable value. The conditions under which broadcast transmission is executed can be adjusted as appropriate. For example, when the deviation power exceeds the allowable value, the broadcast transmission may be executed when the total power consumption exceeds the target power.

In the first embodiment, an example in which many functions of the power consumption adjustment device 100 are realized by software (or firmware), that is, many of the functions of the power consumption adjustment device 100 are realized by executing a program by the processor. Explained to be. In the present invention, such a function may be realized by hardware. In this case, for example, the power consumption adjustment apparatus 100 includes a processing circuit instead of the CPU 11. This processing circuit is configured by, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof.

By applying an operation program that defines the operation of the power

consumption adjusting devices

100 and 110 according to the present invention to an existing personal computer or information terminal device, the personal computer functions as the power

consumption adjusting devices

100 and 110 according to the present invention. It is also possible to make it.

The distribution method of such a program is arbitrary. For example, the program is stored and distributed on a computer-readable recording medium such as a CD-ROM (Compact Disk Read-Only Memory), a DVD (Digital Versatile Disk), or a memory card. Alternatively, it may be distributed via a communication network (for example, the Internet).

The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. Further, the above-described embodiment is for explaining the present invention, and does not limit the scope of the present invention. That is, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

The present invention is applicable to a power consumption adjustment system that adjusts the total power consumption in a demand area.

11, 31 CPU, 12, 32 ROM, 13, 33 RAM, 14, 34 flash memory, 15, 35 RTC, 16, 36 touch screen, 17 in-home communication interface, 18 out-of-home communication interface, 37 infrared communication interface, 38 load Circuit, 100, 110 Power consumption adjustment device, 101 Power information acquisition unit, 102 List generation unit, 103 Storage unit, 104 Transmission unit, 105 Timekeeping unit, 106 Current information acquisition unit, 200 Display device, 300 Electrical device, 310 Device adapter , 400 power measurement device, 410 power adapter, 420 commercial power supply, 510 power cloud server, 520 HEMS cloud server, 530 terminal device, 610 in-home network, 620 out-of-home network, 810, 8 0,830 harmonic components 1000 power conditioning system, 1031 list storage unit, 1032 sublists storage unit

Claims

Power information acquisition means for acquiring power information indicating the total power consumption of a plurality of electrical devices;
When the total power change amount, which is a change amount per unit time of the total power consumption, exceeds the power change threshold value, the individual power change amount, which is the change amount of power consumption per unit time, exceeds the power change threshold value. List generating means for adding a record corresponding to one electrical device to the list;
Adjustment instruction information indicating that power consumption should be adjusted, and parameter information indicating parameters including the number of records included in the list, and transmission means for transmitting to the plurality of electrical devices,
Power consumption adjustment device.
The record includes the individual power change amount.
The power consumption adjusting apparatus according to claim 1.
When the deviation power that is the difference between the total power consumption and the target power exceeds an allowable value, the transmission means transmits the adjustment instruction information and the parameter information to the plurality of electrical devices,
The parameter includes the deviation power,
The power consumption adjusting device according to claim 1 or 2.
When the list generation means does not include a record including an individual power change amount in which the total power change amount exceeds the power change threshold value and a difference from the total power change amount is equal to or less than a power difference threshold value. Adding a new record including the total power change amount as the individual power change amount to the list;
The power consumption adjusting device according to claim 2.
The record further includes operating state information indicating one of an on state and an off state as the operating state of the first electrical device,
The list generation means includes
Operating state information indicating an individual power change amount and an off state in which the total power change amount exceeds the power change threshold value and a difference from the total power change amount is equal to or less than a power difference threshold value when the total power consumption increases. If the first record, which is a record including the above, is included in the list, the first record is updated to include operating state information indicating an on state,
When the total power consumption increases, the total power change amount exceeds the power change threshold value, and when the first record is not included in the list, the total power change amount is included as the individual power change amount. , Add a new record to the list that contains operational status information indicating the on state,
When the total power consumption is reduced, the total power change amount exceeds the power change threshold value, and the difference between the total power change amount and the individual power change amount that is equal to or less than the power difference threshold value and the operating state indicating the on state If the list includes a second record that is a record including information, update the second record to include operating state information indicating an off state,
When the total power consumption decreases, the total power change amount exceeds the power change threshold value, and the second record is not included in the list, the total power change amount is included as the individual power change amount. Adding a new record to the list that includes operational state information indicating an off state;
The power consumption adjusting device according to claim 2.
The record includes update time information indicating an update time of the record,
The list generation means includes
When updating a record included in the list, update the update time information included in the record to be updated,
Of the records included in the list, delete the record including the update time information indicating the update time indicating the elapsed time until the current time exceeds the time threshold from the list.
The power consumption adjusting apparatus according to claim 5.
A current information acquisition means for acquiring current information indicating a total current flowing through the plurality of electrical devices;
The list generation means generates a sublist including one or more records corresponding to the second electrical device in which the magnitude of the harmonic component of the flowing current exceeds the first current threshold based on the harmonic component of the total current. And
The parameter includes the total number of records included in the list and the number of records included in the sublist.
The power consumption adjusting device according to any one of claims 1 to 6.
The record corresponding to the second electric device includes characteristic information indicating the characteristics of the harmonic component of the current flowing through the second electric device.
The power consumption adjusting device according to claim 7.
The list generation means includes a record including feature information indicating a feature whose harmonic component of the total current exceeds the first current threshold and matches a feature of the harmonic component of the total current in the sublist. If not included, add a new record to the sublist including feature information indicating the characteristics of the harmonic component of the total current as the characteristics of the harmonic component of the current flowing in the second electrical device.
The power consumption adjusting device according to claim 8.
The record corresponding to the second electric device further includes operating state information indicating one of an on state and an off state as the operating state of the second electric device,
The list generation means includes
The amount of increase in the magnitude of the harmonic component of the total current per unit time exceeds the first current threshold, and indicates a feature that matches the change per unit time of the feature of the harmonic component of the total current. When the third record, which is a record including feature information and operating state information indicating an off state, is included in the sublist, the third record is updated to include operating state information indicating an on state,
When the amount of increase in the harmonic component of the total current per unit time exceeds the first current threshold and the third record is not included in the sublist, the total current harmonic component Adding a new record including the feature information indicating the change in the feature per unit time as a feature of the harmonic component of the current flowing in the second electrical device and the operating state information indicating the ON state to the sublist;
A decrease amount per unit time of the magnitude of the harmonic component of the total current exceeds the first current threshold, and indicates a feature that matches the change per unit time of the feature of the harmonic component of the total current. When the fourth record, which is a record including feature information and operating state information indicating an on state, is included in the sublist, the fourth record is updated to include operating state information indicating an off state,
When the amount of decrease in the magnitude of the harmonic component of the total current per unit time exceeds the first current threshold and the fourth record is not included in the sublist, the harmonic component of the total current Adding a new record including feature information indicating a change amount of the feature per unit time as a characteristic of a harmonic component of a current flowing in the second electrical device and operating state information indicating an off state to the sublist;
The power consumption adjusting device according to claim 8.
The characteristic of the harmonic component of the current flowing through the second electrical device includes a phase position where the harmonic component of the current flowing through the second electrical device exceeds a second current threshold.
The power consumption adjusting device according to any one of claims 8 to 10.
The characteristic of the harmonic component of the current flowing through the second electrical device further includes the magnitude of the harmonic component of the current flowing through the second electrical device at the phase position.
The power consumption adjusting apparatus according to claim 11.
Receiving means for receiving, from the plurality of electric devices, information for determination for determining whether the electric device corresponds to one of the first electric device and the second electric device; Prepared,
The parameter includes a total number of the first electric device and the second electric device based on the determination information.
The power consumption adjusting device according to any one of claims 7 to 12.
A power consumption adjustment system comprising a power consumption adjustment device and a plurality of electrical devices,
The power consumption adjusting device is:
Power information acquisition means for acquiring power information indicating total power consumption of the plurality of electrical devices;
When the total power change amount, which is a change amount per unit time of the total power consumption, exceeds the power change threshold value, the individual power change amount, which is the change amount of power consumption per unit time, exceeds the power change threshold value. List generating means for adding a record corresponding to one electrical device to the list;
Adjustment instruction information indicating that power consumption should be adjusted, parameter information indicating parameters including the number of records included in the list, and transmission means for transmitting to the plurality of electrical devices,
Each of the plurality of electrical devices is
Receiving means for receiving the adjustment instruction information and the parameter information from the power consumption adjustment device;
Adjusting means for adjusting power consumption based on the number of records included in the parameter indicated by the parameter information,
Power consumption adjustment system.
Based on the amount of change per unit time of the total power consumption of a plurality of electrical devices, obtain the number of electrical devices whose amount of change in power consumption per unit time exceeds the power change threshold,
Transmitting adjustment instruction information indicating that power consumption should be adjusted and number information indicating the obtained number to the plurality of electrical devices;
Power consumption adjustment method.
Computer
When the total power change amount that is the change amount per unit time of the total power consumption of a plurality of electrical devices exceeds the power change threshold, the individual power change amount that is the change amount of power consumption per unit time is the power change List generation means for adding a record corresponding to the first electrical device exceeding the threshold to the list;
Adjustment instruction information indicating that power consumption should be adjusted, and parameter information indicating a parameter including the number of records included in the list, function as a transmission unit that transmits to the plurality of electrical devices,
program.