JP2022003850A - Control device, control method and control program - Google Patents

Abstract

To reduce power consumption while maintaining comfort of a user.SOLUTION: An information acquisition unit 21 acquires power consumption for each dwelling unit of a multiple dwelling house. A power determination unit 22 determines whether or not the total power consumption in the multiple dwelling house is more than a demand threshold determined on the basis of a power amount to be a change reference of power rate. A dwelling unit selection unit 23 selects dwelling units in a descending order of difference between the power consumption acquired by the information acquisition unit 21 and a reference value as control object dwelling units among the dwelling units of the multiple dwelling house. A control unit 24 controls devices in the control object dwelling houses selected by the dwelling unit selection unit 23 so that the power consumption decreases when it is determined that the total power consumption is more than the demand threshold by the power determination unit 22.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a technique for suppressing power consumption per unit time in an apartment house to a certain value or less.

In apartment houses, there are cases where a form of power contract called a demand rate system is made. The demand charge system is a system in which the basic charge for electricity is determined based on the maximum value of power consumption per unit time. For example, for each month, the power consumption is measured every 30 minutes. Then, the contract power for the month is determined based on the maximum value of the power consumption per 30 minutes.

It is being considered to control the power consumption of each dwelling unit so as not to exceed the amount of electric power that is the standard for changing the electric power charge in the apartment house under the contract of the demand charge system. It is being considered to prevent the basic electricity charge from becoming high.
Patent Document 1 describes that when a power reduction request is made to a dwelling unit, it is determined from which device and how to control it, and the control is performed. As a result, Patent Document 1 aims to efficiently reduce power consumption while reducing the rate at which the user feels uncomfortable.

Japanese Unexamined Patent Publication No. 2016-146746

Depending on the dwelling unit, the power consumption may be reduced before the power reduction request is made. In this case, even if the control is based on the user's settings, if the control is performed so as to further suppress the power consumption, the user's comfort may be impaired.
The present disclosure aims to make it possible to reduce power consumption while maintaining user comfort.

The control device according to the present disclosure is
The information acquisition department that acquires the power consumption of each dwelling unit of an apartment house,
Among the dwelling units of the apartment house, the dwelling unit selection unit that selects the dwelling unit to be controlled in order from the dwelling unit having the largest difference between the power consumption acquired by the information acquisition unit and the reference value, and the dwelling unit selection unit.
It includes a control unit that controls the equipment in the controlled dwelling unit selected by the dwelling unit selection unit so that the power consumption is reduced.

In the present disclosure, the dwelling units to be controlled are selected in order from the dwelling unit having the largest difference between the power consumption and the reference value, and the equipment in the dwelling unit to be controlled is controlled so as to reduce the power consumption. This makes it difficult to be selected as the controlled dwelling unit when the power consumption is already suppressed. As a result, it becomes possible to reduce power consumption while maintaining user comfort.

The block diagram of the control system 100 which concerns on Embodiment 1. FIG. The block diagram of the control apparatus 10 which concerns on Embodiment 1. FIG. An explanatory diagram of information stored in the power consumption table 31 according to the first embodiment. An explanatory diagram of information stored in the dwelling unit table 32 according to the first embodiment. An explanatory diagram of information stored in the equipment table 33 according to the first embodiment. An explanatory diagram of information stored in the setting table 34 according to the first embodiment. The explanatory view of the information stored in the apartment house table 35 which concerns on Embodiment 1. FIG. The flowchart which shows the operation of the control apparatus 10 which concerns on Embodiment 1. An explanatory diagram of the power determination process according to the first embodiment. The explanatory view of the calculation method of the reference value which concerns on Embodiment 1. The block diagram of the control device 10 which concerns on modification 1. FIG. The block diagram of the control apparatus 10 which concerns on Embodiment 2. FIG. The flowchart which shows the operation of the control apparatus 10 which concerns on Embodiment 2.

Embodiment 1.
*** Explanation of configuration ***
The configuration of the control system 100 according to the first embodiment will be described with reference to FIG.
The control system 100 includes a control device 10 and a communication device 103 installed in each dwelling unit 102 of the apartment house 101. Each dwelling unit 102 is provided with a plurality of devices 104 that consume electric power. The control device 10 is connected to the communication device 103 installed in each dwelling unit 102 via a transmission line 105, and the communication device 103 installed in each dwelling unit 102 is connected to each device 104 provided in the dwelling unit 102. It is connected via a transmission line 106. Further, the communication device 103 installed in each dwelling unit 102 is connected to the electric energy meter 107 of the dwelling unit 102.
Specific examples of the transmission line 105 and the transmission line 106 are the Internet or a LAN (Local Area Network).

The configuration of the control device 10 according to the first embodiment will be described with reference to FIG.
The control device 10 is a computer.
The control device 10 includes hardware for a processor 11, a memory 12, a storage 13, and a communication interface 14. The processor 11 is connected to other hardware via a signal line and controls these other hardware.

The processor 11 is an IC (Integrated Circuit) that performs processing. Specific examples of the processor 11 are a CPU (Central Processing Unit), a DSP (Digital Signal Processor), and a GPU (Graphics Processing Unit).

The memory 12 is a storage device that temporarily stores data. As a specific example, the memory 12 is a SRAM (Static Random Access Memory) or a DRAM (Dynamic Random Access Memory).

The storage 13 is a storage device for storing data. As a specific example, the storage 13 is an HDD (Hard Disk Drive). The storage 13 includes SD (registered trademark, Secure Digital) memory card, CF (CompactFlash, registered trademark), NAND flash, flexible disk, optical disk, compact disk, Blu-ray (registered trademark) disk, DVD (Digital Versaille Disk), and the like. It may be a portable recording medium.

The communication interface 14 is an interface for communicating with an external device. As a specific example, the communication interface 14 is a port of Ethernet (registered trademark), USB (Universal Serial Bus), HDMI (registered trademark, High-Definition Multimedia Interface).

The control device 10 includes an information acquisition unit 21, a power determination unit 22, a dwelling unit selection unit 23, and a control unit 24 as functional components. The functions of each functional component of the control device 10 are realized by software.
The storage 13 stores a program that realizes the functions of each functional component of the control device 10. This program is read into the memory 12 by the processor 11 and executed by the processor 11. As a result, the functions of each functional component of the control device 10 are realized.

The storage 13 stores a power consumption table 31, a dwelling unit table 32, an equipment table 33, a setting table 34, and an apartment house table 35.

In FIG. 2, only one processor 11 is shown. However, the number of processors 11 may be plural, and the plurality of processors 11 may execute programs that realize each function in cooperation with each other.

*** Explanation of operation ***
The operation of the control device 10 according to the first embodiment will be described with reference to FIGS. 3 to 10.
The operation procedure of the control device 10 according to the first embodiment corresponds to the control method according to the first embodiment. Further, the program that realizes the operation of the control device 10 according to the first embodiment corresponds to the control program according to the first embodiment.

Information stored in each table will be described as a premise of the operation of the control device 10 according to the first embodiment.

With reference to FIG. 3, the information stored in the power consumption table 31 according to the first embodiment will be described.
In the power consumption table 31, the power consumption and the acquisition date and time are stored for each dwelling unit ID (Identifier). The dwelling unit ID is an identifier of the dwelling unit 102. The power consumption is the power (kWh (kilowatt hour)) consumed by the dwelling unit 102 indicated by the dwelling unit ID. The acquisition date and time is the date and time when the power consumption is totaled.

With reference to FIG. 4, the information stored in the dwelling unit table 32 according to the first embodiment will be described.
In the dwelling unit table 32, the area and the unit price of the electric power charge are stored for each apartment house ID and the dwelling unit ID. The apartment house ID is an identifier of the apartment house 101. ^{The area indicates the area (m 2} (square meter)) of the dwelling unit 102 indicated by the apartment house ID and the dwelling unit ID. Here, the area is the total floor area. The unit price of electricity charges is the electricity bill (yen / kWh) per unit electricity.

The information stored in the equipment table 33 according to the first embodiment will be described with reference to FIG.
In the device table 33, a device name, an appropriate value, a reduction efficiency, a suppression flag, and a control parameter are stored for each apartment ID and device ID. The device ID is an identifier of the device 104. The device name is the name of the device 104 indicated by the device ID. The appropriate value is an appropriate set value for the control parameter of the device 104 indicated by the device ID. The reduction efficiency indicates the high efficiency of power consumption reduction when the device 104 indicated by the device ID is controlled. The suppression flag indicates whether to increase or decrease the value of the set value of the control parameter when reducing the power consumption. In FIG. 5, when the suppression flag is 0, the power consumption is reduced by increasing the value, and when the suppression flag is 1, the power consumption is reduced by decreasing the value. The control parameter indicates a parameter to be controlled for the device 104 indicated by the device ID.

The information stored in the setting table 34 according to the first embodiment will be described with reference to FIG.
In the setting table 34, the set value and the acquisition date and time are stored for each dwelling unit ID and device ID. The set value indicates a value set as a control parameter. The acquisition date and time indicates the date and time when the set value was collected.

The information stored in the apartment house table 35 according to the first embodiment will be described with reference to FIG. 7.
The apartment house table 35 stores the apartment house name and the demand threshold value for each apartment house ID. The apartment house name is the name of the apartment house 101. The demand threshold is determined based on the amount of electric power that is the basis for changing the electric power charge.
The amount of electricity that serves as the basis for changing the electricity rate is the amount of electricity that the basic rate of electricity is higher than the current rate in the demand rate system. The demand threshold may be an electric energy that serves as a reference for changing the electric power charge, or may be a power amount that is slightly smaller than the electric energy that serves as a reference for changing the electric power charge. For example, the demand threshold value is calculated by multiplying the electric energy amount, which is the reference for changing the electric power charge, by the correction value α. The correction value α is a value less than 1.

The operation of the control device 10 according to the first embodiment will be described with reference to FIG.
The operation shown in FIG. 8 is executed at regular time intervals for each apartment house 101 to be managed.

(Step S11: Information acquisition process)
The information acquisition unit 21 acquires the power consumption and the set value of the device 104 for each dwelling unit 102 in the target apartment house 101. Specifically, the information acquisition unit 21 targets each dwelling unit 102 in the target apartment house 101. Set to the dwelling unit 102 of. The information acquisition unit 21 instructs the communication device 103 in the target dwelling unit 102 to acquire the power consumption of the target dwelling unit 102 and the set value of each device 104 provided in the target dwelling unit 102. The communication device 103 accesses the watt-hour meter 107 of the target dwelling unit 102 to acquire the power consumption of the target dwelling unit 102. Further, the communication device 103 accesses each device 104 provided in the target dwelling unit 102 and acquires the set value of the control parameter of each device 104. The information acquisition unit 21 acquires the power consumption acquired by the communication device 103 and the set value of each device 104.
The information acquisition unit 21 writes the acquired power consumption in the power consumption table 31 together with the acquisition date and time, and writes the set value of each acquired device 104 in the setting table 34 together with the acquisition date and time.

(Step S12: Power determination process)
The power determination unit 22 determines whether or not the total power consumption of the target housing complex 101 is greater than the demand threshold determined based on the amount of power that serves as a reference for changing the power charge. When the total power consumption is larger than the demand threshold value, the power determination unit 22 advances the process to step S13. On the other hand, the power determination unit 22 ends the process when the total power consumption is equal to or less than the demand threshold value. That is, when the total power consumption is equal to or less than the demand threshold value, the control of the device 104 is not performed.
Specifically, the power determination unit 22 calculates the total power consumption of the entire housing complex 101 from the power consumption of each dwelling unit 102 acquired in step S11. Here, as shown in FIG. 9, the power determination unit 22 calculates the total power consumption of each dwelling unit 102 acquired in step S11 as the total power consumption. However, the power determination unit 22 may separately acquire the power consumption of the common area of the housing complex 101 and calculate the total power consumption in addition to the total power consumption of each dwelling unit 102. Then, the power determination unit 22 determines whether or not the total power consumption is larger than the demand threshold value of the target apartment house 101 stored in the apartment house table 35.

(Step S13: Dwelling unit selection process)
The dwelling unit selection unit 23 selects as the dwelling unit to be controlled in order from the dwelling unit 102 of the target apartment house 101, in which the difference between the power consumption acquired in step S11 and the reference value is large.
Specifically, the dwelling unit selection unit 23 sets each dwelling unit 102 in the target apartment house 101 as the target dwelling unit 102. The dwelling unit selection unit 23 calculates a reference value for the target dwelling unit 102. The dwelling unit selection unit 23 calculates the difference between the power consumption of the target dwelling unit 102 and the reference value. Then, the dwelling unit selection unit 23 selects the dwelling unit 102 having a large difference as the dwelling unit to be controlled. For example, the dwelling unit selection unit 23 selects the dwelling unit 102 having the largest difference as the dwelling unit to be controlled. Alternatively, the dwelling unit selection unit 23 selects the dwelling unit 102 whose difference is larger than the reference as the controlled dwelling unit.

A method of calculating the reference value according to the first embodiment will be described with reference to FIG.
The dwelling unit selection unit 23 calculates a reference value for each dwelling unit 102 by prorating the power indicated by the demand threshold value determined based on the amount of electric power that serves as a reference for changing the electric power charge to each dwelling unit 102. Specifically, there are the following calculation methods (1) and (2).

Calculation method (1)
The dwelling unit selection unit 23 is a value obtained by dividing the unit price of the electric power charge of the target dwelling unit 102 by the total unit price of the electric power charge of each dwelling unit 102 of the apartment house 101 with respect to the electric power indicated by the demand threshold for each dwelling unit 102. To calculate the reference value for the target dwelling unit 102 by multiplying by. The unit price of the electric power charge of each dwelling unit 102 can be specified by referring to the dwelling unit table 32. With this calculation method, the higher the unit price of electricity, the less likely it is to be controlled, and it is possible to make a plan that suits each household.

Calculation method (2)
The dwelling unit selection unit 23 multiplies each dwelling unit 102 by a value obtained by dividing the area of the target dwelling unit 102 by the total area of each dwelling unit 102 of the apartment house 101 with respect to the power indicated by the demand threshold. The reference value for the dwelling unit 102 is calculated. The area of each dwelling unit 102 can be specified by referring to the dwelling unit table 32. In this calculation method, it is taken into consideration that the amount of power used naturally increases as the site area increases.

The dwelling unit selection unit 23 may use the average value of the value calculated by the calculation method (1) and the value calculated by the calculation method (2) as a reference value.

(Step S14: Control process)
The control unit 24 controls the device 104 in the controlled dwelling unit selected in step S13 so that the power consumption is reduced.
Specifically, the control unit 24 refers to the device table 33 and the setting table 34, and sets a value for at least one of the devices 104 in the controlled dwelling unit so that the power consumption of the target device 104 is reduced. To change. Here, the control unit 24 transmits an instruction to change the set value to the communication device 103 of the dwelling unit to be controlled. Then, the communication device 103 accesses the target device 104 and changes the set value. This reduces power consumption.

After that, the process is returned to step S11. In some cases, the amount of power consumption reduction is insufficient only by controlling the device 104 of the controlled dwelling unit selected in step S13. In this case, it is determined again in step S12 that the total power consumption is larger than the demand threshold value, the controlled dwelling unit is selected in step S13, and the power consumption is reduced in step S14. Since the set value was changed in the previous step S14, another dwelling unit 102 may be selected as the controlled dwelling unit in step S13.

*** Effect of Embodiment 1 ***
As described above, the control device 10 according to the first embodiment selects the dwelling units 102 having the largest difference between the power consumption and the reference value as the dwelling units to be controlled, so that the devices in the dwelling units to be controlled have low power consumption. Control. This makes it difficult to be selected as the controlled dwelling unit when the power consumption is already suppressed. As a result, it becomes possible to reduce power consumption while maintaining user comfort.

*** Other configurations ***
<Modification 1>
In the first embodiment, each functional component is realized by software. However, as a modification 1, each functional component may be realized by hardware. The difference between the first modification and the first embodiment will be described.

The configuration of the control device 10 according to the first modification will be described with reference to FIG.
When each functional component is realized by hardware, the control device 10 includes an electronic circuit 15 instead of the processor 11, the memory 12, and the storage 13. The electronic circuit 15 is a dedicated circuit that realizes the functions of each functional component, the memory 12, and the storage 13.

Examples of the electronic circuit 15 include a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, a logic IC, a GA (Gate Array), an ASIC (Application Specific Integrated Circuit), and an FPGA (Field-Programmable Gate Array). is assumed.
Each functional component may be realized by one electronic circuit 15, or each functional component may be distributed and realized by a plurality of electronic circuits 15.

<Modification 2>
As a modification 2, some functional components may be realized by hardware, and other functional components may be realized by software.

The processor 11, the memory 12, the storage 13, and the electronic circuit 15 are referred to as a processing circuit. That is, the function of each functional component is realized by the processing circuit.

Embodiment 2.
The second embodiment is different from the first embodiment in that the device to be controlled is selected. In the second embodiment, these different points will be described, and the same points will be omitted.

*** Explanation of configuration ***
The configuration of the control device 10 according to the second embodiment will be described with reference to FIG.
The control device 10 is different from the control device 10 shown in FIG. 2 in that the device selection unit 25 is provided as a functional component. The device selection unit 25 is realized by software or hardware like other functional components.

*** Explanation of operation ***
The operation of the control device 10 according to the second embodiment will be described with reference to FIG.
The operation procedure of the control device 10 according to the second embodiment corresponds to the control method according to the second embodiment. Further, the program that realizes the operation of the control device 10 according to the second embodiment corresponds to the control program according to the second embodiment.

The operation of the control device 10 according to the second embodiment will be described with reference to FIG.
The process from step S21 to step S23 is the same as the process from step S11 to step S13 in FIG.

(Step S24: Device selection process)
The device selection unit 25 is a device 104 in which a set value that consumes more power than an appropriate value is set among the devices 104 in the controlled dwelling unit selected in step S23, and by changing the set value. The device 104 having high power consumption reduction efficiency is selected as the device to be controlled.
Specifically, the device selection unit 25 sets each device 104 in the controlled dwelling unit to the target device 104. The device selection unit 25 refers to the device table 33 and determines whether or not a set value that consumes more power than an appropriate value is set for the target device 104. That is, in the device selection unit 25, when the suppression flag is 0 for the target device 104, if a value smaller than the appropriate value is set as the set value, the device selection unit 25 consumes more power than the appropriate value. Judge that it is set. Similarly, when the suppression flag is 1, the device selection unit 25 consumes more power than the appropriate value if a value larger than the appropriate value is set as the set value. Is set.
Then, the device selection unit 25 refers to the device table 33, and among the devices 104 determined to have a set value that consumes more power than the appropriate value, the device 104 having a high reduction efficiency is controlled. Select as. For example, the device selection unit 25 selects all the devices 104 having the highest reduction efficiency as the devices to be controlled. Alternatively, the device selection unit 25 selects as one of the devices to be controlled among the devices 104 having the highest reduction efficiency.

(Step S25: Control process)
The control unit 24 controls the control target device selected in step S24 so as to reduce power consumption.
Specifically, the control unit 24 gradually changes the set value of the control parameter until the set value of the controlled target device becomes an appropriate value while the total power consumption is larger than the demand threshold value. In the second embodiment, when the suppression flag for the controlled device is 0, the control unit 24 raises the set value of the control parameter by one step. Further, when the suppression flag for the controlled device is 1, the control unit 24 lowers the set value of the control parameter by one step.
The control unit 24 ends the process of step S25 when the total power consumption becomes equal to or less than the demand threshold value or when the set value becomes an appropriate value. That is, even if the total power consumption is larger than the demand threshold value, the control unit 24 changes only until the set value for the controlled device becomes an appropriate value.

*** Effect of Embodiment 2 ***
As described above, the control device 10 according to the second embodiment is the device 104 in which the set value that consumes more power than the appropriate value is set, and the power consumption reduction efficiency by changing the set value. The device 104 having a high value is selected as the device to be controlled. This makes it possible to efficiently reduce power consumption while maintaining user comfort.

Further, the control device 10 according to the second embodiment changes the set value of the device 104 only until it reaches an appropriate value. This prevents the user's comfort from being significantly impaired.

The embodiments and modifications of the present disclosure have been described above. Some of these embodiments and modifications may be combined and carried out. In addition, any one or several may be partially carried out. The present disclosure is not limited to the above embodiments and modifications, and various modifications can be made as necessary.

10 control device, 11 processor, 12 memory, 13 storage, 14 communication interface, 15 electronic circuit, 21 information acquisition unit, 22 power determination unit, dwelling unit selection unit 23, 24 control unit, 25 device selection unit, 31 power consumption table, 32 dwelling unit table, 33 equipment table, 34 setting table, 35 apartment house table, 100 control system, 101 apartment house, 102 dwelling unit, 103 communication device, 104 equipment, 105 transmission line, 106 transmission line, 107 electricity meter.

Claims (9)

The information acquisition department that acquires the power consumption of each dwelling unit of an apartment house,
Among the dwelling units of the apartment house, the dwelling unit selection unit that selects the dwelling unit to be controlled in order from the dwelling unit having the largest difference between the power consumption acquired by the information acquisition unit and the reference value, and the dwelling unit selection unit.
A control device including a control unit that controls equipment in the controlled dwelling unit selected by the dwelling unit selection unit so as to reduce power consumption. The control device further
It is equipped with a power determination unit that determines whether or not the total power consumption in the apartment house is higher than the demand threshold determined based on the amount of power that serves as a reference for changing the power charge.
The first aspect of claim 1, wherein the control unit controls the device in the controlled dwelling unit so that the power consumption is reduced when the power determination unit determines that the total power consumption is larger than the demand threshold value. Control device. The control device according to claim 2, wherein the control unit gradually changes the set value until the set value of the device in the controlled dwelling unit becomes an appropriate value while the total power consumption is larger than the demand threshold value. The control device further
Among the devices in the controlled dwelling unit, the devices for which a set value that consumes more power than the appropriate value is set and the efficiency of reducing power consumption by changing the set value is high are controlled. Equipped with a device selection unit to select as a device
The control device according to claim 3, wherein the control unit changes a set value of the controlled device selected by the device selection unit. The reference value corresponds to any one of claims 1 to 4 calculated by prorating the power indicated by the demand threshold value determined based on the amount of power used as the reference for changing the power charge to each of the dwelling units. The control device described. The reference value is set for each dwelling unit of the apartment house, and is set.
The reference value is obtained by dividing the unit price of the electric power charge of the target dwelling unit by the total unit price of the electric power charge of each dwelling unit of the apartment house with respect to the electric power indicated by the demand threshold for each dwelling unit of the apartment house. The control device according to claim 5, which is obtained by multiplying the values obtained. The reference value is set for each dwelling unit of the apartment house, and is set.
The reference value is obtained by multiplying the power indicated by the demand threshold by the area of the target dwelling unit divided by the total area of each dwelling unit of the apartment house for each of the dwelling units of the apartment house. The control device according to claim 5. The information acquisition department acquires the power consumption of each dwelling unit of the apartment house,
The dwelling unit selection unit selects the dwelling units of the apartment house as the dwelling units to be controlled in order from the dwelling unit having the largest difference between the power consumption and the reference value.
A control method in which a control unit controls equipment in the controlled dwelling unit so as to reduce power consumption. Information acquisition processing to acquire the power consumption of each dwelling unit of an apartment house,
Among the dwelling units of the apartment house, the dwelling unit selection process of selecting the dwelling unit to be controlled in order from the dwelling unit having the largest difference between the power consumption acquired by the information acquisition process and the reference value, and the dwelling unit selection process.
A control program that causes a computer to function as a control device that performs a control process for controlling devices in the controlled dwelling unit selected by the dwelling unit selection process so as to reduce power consumption.

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