Power consumption reduction system, electrical equipment, power consumption reduction method, and program

Abstract

Provided are a power consumption reduction system, electrical equipment, a power consumption reduction method, and a program capable of appropriately managing power consumption without installing a dedicated control device. A power consumption reduction system (1) is provided with a plurality of pieces of electrical equipment (100). The electrical equipment (100) comprises: a power consumption acquisition unit that acquires the power consumption of the electrical equipment (100); a power consumption frequency calculation unit that calculates a power consumption frequency on the basis of the operation state of the electrical equipment (100); a transmission unit that transmits the calculated power consumption frequency to another electrical equipment (100); a reception unit that receives the power consumption frequency of the other electrical equipment (100); an operation amount calculation unit that calculates an operation amount of an object to be controlled on the basis of the difference between the calculated power consumption frequency and the received power consumption frequency when the calculated power consumption frequency is greater than the received power consumption frequency; and an operation control unit that controls the operation of the object to be controlled.

Description

Power consumption reduction system, electrical equipment, power consumption reduction method, and program

[0001] The present disclosure relates to a power consumption reduction system, an electrical device, a power consumption reduction method, and a program.

[0002] There are known techniques for reducing the power consumption of electrical devices. For example, Patent Literature 1 discloses an air conditioning system that dynamically changes the air conditioners to which power reduction commands are applied based on the difference between the total power consumed by the air conditioners and a target value, and issues power reduction commands to some of the air conditioners.

[0003] Japanese Patent Application Laid-Open No. 2020-124062

[0004] When constructing such an air conditioning system, it is necessary to install a dedicated control device. Furthermore, control systems such as HEMS (Home Energy Management Systems) to which this control device is applied may not be able to control electrical appliances that use different communication standards. Therefore, if a dedicated control device cannot be installed on the network at the installation location or cannot be connected to the electrical appliances, it is difficult to appropriately manage the power consumption of the electrical appliances.

[0005] The present disclosure has been made in consideration of the above-mentioned situation, and aims to provide a power consumption reduction system, electrical equipment, a power consumption reduction method, and a program that can appropriately manage power consumption without installing a dedicated control device.

[0006] In order to achieve the above-mentioned object, the power consumption reduction system of the present disclosure is a power consumption reduction system having a plurality of electrical devices that consume power, wherein the electrical devices each have: a power consumption acquisition unit that acquires the power consumption of the electrical device; a power consumption frequency calculation unit that calculates a power consumption frequency that normalizes the power consumption acquired by the power consumption acquisition unit based on the operating state of the electrical device; a transmission unit that transmits the power consumption frequency calculated by the power consumption frequency calculation unit to another electrical device; a receiving unit that receives the power consumption frequency of the other electrical device; an operation quantity calculation unit that, if the power consumption frequency calculated by the power consumption frequency calculation unit is greater than the power consumption frequency received by the receiving unit, calculates an operation quantity of a control object equipped in the electrical device based on the difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the power consumption frequency received by the receiving unit; and an operation control unit that controls the operation of the control object based on the operation quantity calculated by the operation quantity calculation unit.

[0007] According to the present disclosure, when an electrical appliance's power consumption frequency, obtained by normalizing the electrical power consumption of the electrical appliance, is greater than the power consumption frequency of another electrical appliance, the electrical appliance calculates the operation amount of a control target included in the electrical appliance based on the difference between the power consumption frequency of the electrical appliance itself and the power consumption frequency of the other electrical appliance.The electrical appliance then controls the operation of the control target based on the calculated operation amount.This allows for appropriate management of power consumption without installing a dedicated control device.

[0008] FIG. 1 is a diagram showing the configuration of a power consumption reduction system according to a first embodiment of the present disclosure. A block diagram showing the configuration of the electrical equipment shown in FIG. 1. A diagram showing an example of operating state information indicating the operating state of each type of electrical equipment shown in FIG. 1. A diagram showing an example of control target information indicating the control target for each type of electrical equipment shown in FIG. 1. A diagram showing an example of a variable map stored in the electrical equipment shown in FIG. 1. A diagram showing an example of the operation of an agreement algorithm. A block diagram showing the physical configuration of the electrical equipment shown in FIG. 1. A flowchart showing the operation amount determination process by the electrical equipment shown in FIG. 1. A diagram showing the configuration of an electrical equipment according to a second embodiment. A flowchart showing the operation amount determination process by the electrical equipment according to the second embodiment. A flowchart showing the operation amount determination process by the electrical equipment according to a fourth modification.

[0009] Hereinafter, a power consumption reduction system, an electrical device, a power consumption reduction method, and a program according to embodiments of the present disclosure will be described with reference to the drawings.

[0010] (Embodiment 1) An example in which an electric device according to an embodiment of the present disclosure is applied to a power consumption reduction system 1 shown in Fig. 1 will be described. As shown in the figure, the power consumption reduction system 1 includes a plurality of electric devices 100 (electric devices 100a, 100b, 100c, ...) that are electrical products installed in a house H, and the electric devices 100 are connected to each other so as to be able to communicate via a network 200. Note that, hereinafter, when the plurality of electric devices 100a, 100b, 100c, ... are referred to without distinction, they will be collectively referred to as electric devices 100.

[0011] The electrical appliances 100 are appliances that consume power in the house H. Examples of the electrical appliances 100 include home appliances such as an induction heating (IH) cooking heater, an induction cooker, a washing machine, a television, and a refrigerator, as well as facility equipment such as an air conditioner, a water heater, a lighting device, a ventilation fan, a power storage device, a floor heating system, and a central air conditioning system.

[0012] The electric devices 100a, 100b, 100c, ... are respectively connected to power lines D1, D2, D3, ... branched by the distribution board 400, and operate on power supplied from the commercial power system 300. The electric device 100a is connected to a current transformer (CT1) installed on the power line D1. The CT1 is a sensor that measures alternating current. The electric device 100a acquires a measurement value of power P1 supplied to the electric device 100a from the distribution board 400 via the CT1. The power P1 corresponds to the power consumed by the electric device 100a. The electric devices 100b and 100c are respectively connected to CT2 and CT3 installed on the power lines D2 and D3. Electrical devices 100b and 100c acquire, via CT2 and CT3, measurement values ​​of power P2 and P3 supplied to electrical devices 100b and 100c, respectively, from distribution board 400. Power P2 and P3 correspond to the power consumed by electrical devices 100b and 100c, respectively.

[0013] In the power consumption reduction system 1, each electric device 100 calculates a power consumption frequency obtained by normalizing the power consumption of the electric device itself. Furthermore, the electric device 100 acquires the power consumption frequency of the other electric devices 100 from the other electric devices 100 with which it can communicate. Each electric device 100 calculates the operation amount of the actuator provided in each electric device 100 using a consensus algorithm that realizes consensus control that causes the power consumption frequency of each electric device 100 to converge to the same value.

[0014] As shown in Figure 2, the electrical device 100 includes a communication unit 101 that transmits and receives data to and from other electrical devices 100, a power consumption acquisition unit 102 that acquires the amount of power consumption of the electrical device 100, an operation state determination unit 103 that determines the operation state of the electrical device 100, a power consumption frequency calculation unit 104 that calculates a power consumption frequency normalized to the amount of power consumption, an operation amount limit value acquisition unit 105 that acquires upper and lower limit values ​​of the operation amount of the actuator provided in the electrical device 100, an operation amount determination unit 106 that determines the operation amount of the actuator provided in the electrical device 100, and an operation control unit 107 that controls the actuator based on the operation amount determined by the operation amount determination unit 106.

[0015] The communication unit 101 transmits and receives data to and from the other electrical appliances 100. Specifically, the communication unit 101 transmits the power consumption frequency of the electrical appliance itself, calculated by the power consumption frequency calculation unit 104, to the other electrical appliances 100 at preset time intervals. The communication unit 101 also receives the power consumption frequency of the other electrical appliances 100 from the other electrical appliances 100 at preset time intervals. The communication unit 101 is an example of a receiving unit and a transmitting unit.

[0016] The power consumption acquisition unit 102 acquires a measurement value of the power consumed by the electrical device 100. Specifically, the power consumption of each of the electrical devices 100a, 100b, 100c, ... corresponds to power P1, P2, P3, ... supplied from the distribution board 400 to the electrical devices 100a, 100b, 100c, ... through power lines D1, D2, D3, .... The power consumption acquisition unit 102 of the electrical device 100a communicates with a CT1 installed on the power line D1 to acquire a measurement value of power P1 measured by the CT1. The power consumption acquisition unit 102 of the electrical device 100b communicates with a CT2 installed on the power line D2 to acquire a measurement value of power P2 measured by the CT2. The power consumption acquisition unit 102 of the electrical device 100c communicates with a CT3 installed on the power line D3 to acquire a measurement value of power P3 measured by the CT3.

[0017] The operating state determination unit 103 monitors the state of the electric device 100 at preset time intervals such as one minute, ten minutes, or one hour, and determines the operating state of the electric device 100. Specifically, the operating state determination unit 103 determines, based on preset rules, which of the operating states defined in the operating state information indicating the operating state for each type of electric device 100 shown in Fig. 3 exists. Details of the processing by the operating state determination unit 103 will be described later.

[0018] 2 , the power consumption frequency calculation unit 104 calculates a power consumption frequency by normalizing the power consumption of the electric device 100. Specifically, the power consumption frequency calculation unit 104 calculates a power consumption frequency by normalizing the power consumption in the range of 0 to 1 based on the operation state of the electric device 100 determined by the operation state determination unit 103. The power consumption frequency calculation unit 104 calculates a power consumption frequency function f , which is a function for calculating a power consumption frequency based on the determined state, using the following equation (1): 消費電力度数関数 The power consumption level is calculated from (state).

[0019] f 消費電力度数関数 (state)=P(t) / (P ｍａｘ - Ｐｍｉｎ )-P ｍｉｎ / (P ｍａｘ -P ｍｉｎ ) Formula (1)

[0020] In equation (1), P(t) is the measured value of power consumption acquired by the power consumption acquisition unit 102, and P ｍａｘ is the maximum power consumption of the electrical device 100 in the operating state determined by the operating state determination unit 103, and P ｍｉｎ is the minimum power consumption amount of the determined electrical device 100 in the operating state. ｍａｘ and P ｍｉｎ are set in advance by the manufacturer of the electric device 100 for each type of electric device 100 and each operating state.

[0021] For example, when the electrical appliance 100 is an induction cooking heater, the average power consumption when the electrical appliance 100 is in a low output state is P Ｌｏｗ，Ｎｏｍｉｎａｌ and then, by the following equations (2) and (3), P ｍｉｎ , P ｍａｘ Set the following respectively.

[0022] P ｍｉｎ =P Ｌｏｗ，Ｎｏｍｉｎａｌ ×0.95 Formula (2)

[0023] P ｍａｘ =P Ｌｏｗ，Ｎｏｍｉｎａｌ ×1.05 Formula (3)

[0024] In addition, the average power consumption when the operating state is high output is P Ｈｉｇｈ，Ｎｏｍｉｎａｌ Then, by the following equations (4) and (5), P ｍｉｎ , P ｍａｘ Set the following respectively.

[0025] P ｍｉｎ =P Ｈｉｇｈ，Ｎｏｍｉｎａｌ ×0.95 Formula (4)

[0026] P ｍａｘ =P Ｈｉｇｈ，Ｎｏｍｉｎａｌ ×1.05 Formula (5)

[0027] The manipulated variable limit value acquisition unit 105 acquires upper and lower limit values ​​of manipulated variables for the actuator to be controlled based on the power consumption frequency calculated by the power consumption frequency calculation unit 104. As illustrated in FIG. 4 , for example, if the electrical appliance 100 is an air conditioner, the manipulated variable limit value acquisition unit 105 acquires upper and lower limit values ​​of manipulated variables for controlling the compressor frequency, the opening of the electronic expansion valve, the rotation speed of the indoor fan, and the rotation speed of the outdoor fan. Also, if the electrical appliance 100 is an induction cooking heater, the manipulated variable limit value acquisition unit 105 acquires upper and lower limit values ​​of manipulated variables for controlling the amount of current flowing through the induction coil. Also, if the electrical appliance 100 is a water heater, the manipulated variable determination unit 106 acquires upper and lower limit values ​​of manipulated variables for controlling the compressor frequency, the opening of the electronic expansion valve, and the rotation speed of the outdoor fan.

[0028] The operation amount limit value acquisition unit 105 acquires the power consumption limit value α calculated by the power consumption limit value calculation unit 104, as shown in FIG. ０ the upper limit value u of the operation amount of each actuator k for each operating state s of the electrical device 100; ｋ，ｓ，Ｕｐｐｅｒ and the lower limit u ｋ，ｓ，Ｌｏｗｅｒ The upper limit value u of the operation amount of each actuator k is calculated by referring to the variable map in which the above is defined. ｋ，ｓ，Ｕｐｐｅｒ , and the lower limit u ｋ，ｓ，Ｌｏｗｅｒ The upper limit value u of the manipulated variable defined in the variable map is obtained. ｋ，ｓ，Ｕｐｐｅｒ and the lower limit u ｋ，ｓ，Ｌｏｗｅｒ are values ​​obtained by normalizing the operation amount of each actuator k to a range of 0 to 1. As shown in the figure, for example, when the electrical device 100 is an air conditioner and is in a start-up state (s=0), the power consumption frequency α calculated by the power consumption frequency calculation unit 104 is ０ is 0.6, the upper limit value of the variable manipulated variable of the compressor (k=0) is 0.7 and the lower limit value is 0.4. The variable map is an example of manipulated variable range information.

[0029] 2, the manipulated variable determiner 106 determines the manipulated variable for each actuator k to be controlled. Specifically, the manipulated variable determiner 106 calculates the manipulated variable at discrete time intervals Δt. Here, the power consumption frequency x of the electric device 100 at time t is ｉ(t) can be expressed as a linear time-invariant system as shown in the following equation (6).

[0030]

[0031] In formula (6), u ｉ (t) is a vertical vector indicating the operation amount of each actuator k of the electrical device 100, and is expressed by equation (7). ｉ (t) = [u ｉ、０ , u ｉ、１ , u ｉ、２ , ..., u ｉ、ｎ－１ ] Ｔ Formula (7)

[0032] In addition, in equation (6), A is a scalar coefficient, and B is an n×1 vector.

[0033] The value of the power consumption frequency of the electrical device 100 at time t is α ｉ , the value of the power consumption frequency of another electrical device 100 communicably connected to the electrical device 100 is a ｊ Then, the power consumption frequency x of the electrical device 100 at time t is ｉ (t) and the power consumption frequency x of the other electrical device 100 at time t. ｊ (t) are expressed by the following equations (8) and (9), respectively.

[0034] x ｉ (t) = α ｉ Formula (8)

[0035] x ｊ (t) = α ｊ Formula (9)

[0036] The operation amount determination unit 106 of the electric device 100 determines the power consumption frequency α of the electric device 100. ｉ and the power consumption level α of the other electrical device 100. ｊ Compare with α ｉ >α ｊ If it is determined that there is another electric device 100 for which the operation amount u of each actuator k is ｉ (t) is calculated.

[0037]

[0038] In the formula (10), K is a 1×n vector that can be set arbitrarily. As illustrated in FIG. 6, the formula (10) is expressed by the power consumption frequency x of each electrical device 100 (i=0, 1, 2). ｉ This is a consensus algorithm that realizes consensus control to converge (t) to the same value αconvergence.

[0039] Next, the operation amount determination unit 106 calculates the operation amount u for each actuator k using the formula (10). ｉ、ｋ (t), and the upper limit value u of the operation amount of each actuator k calculated by the operation amount limit value acquisition unit 105. ｉ，ｋ，Ｕｐｐｅｒ and the lower limit u ｉ，ｋ，Ｌｏｗｅｒ Compare with, u ｉ、ｋ (t) is the upper limit u ｋ，ｓ，Ｕｐｐｅｒ If it exceeds u ｉ、ｋ (t) is the upper limit value u ｋ，ｓ，Ｕｐｐｅｒ and u ｉ、ｋ (t) is the lower limit u ｉ，ｋ，Ｌｏｗｅｒ If it is less than u ｉ、ｋ (t) is the lower limit value u ｉ，ｋ，Ｌｏｗｅｒ It is decided that:

[0040] On the other hand, the operation amount determining unit 106 determines the power consumption frequency α of the electric device 100. ｉ and the power consumption level α of the other electrical device 100. ｊ Compare with α ｉ >α ｊ If it is determined that there is no other electrical device 100 for which the previous operation amount u ｉ (t-Δt) is determined as the manipulated variable to be used.

[0041] u ｉ (t) = u ｉ (t-Δt) Formula (11)

[0042] In addition, α ｉ >α ｊ If it is determined that there is no other electrical device 100 for which the power consumption frequency x(t) is satisfied, the cost function J(x(t)) including the power consumption frequency x(t) is initialized by using the model predictive control shown in the following equation (12) instead of equation (11). ｉ This allows the power consumption rate of the electrical device 100 to be reduced, which is expected to reduce the power consumption of the entire network more quickly.

[0043] u ｉ (t)=minJ(x(t)) Equation (12)

[0044] The operation amount determination unit 106 is an example of an operation amount calculation unit.

[0045] Returning to FIG. 2 , the operation control unit 107 controls the operation of the actuator k of the electric device 100 based on the operation amount determined by the operation amount determination unit 106 .

[0046] The electrical device 100 having the functional configuration described above physically comprises, as shown in FIG. 7 , a processor 11 that executes processing according to a program, a memory 12 that stores various programs, and a communication unit 13 that transmits and receives information, which are connected via an internal bus 99.

[0047] The processor 11 reads and executes programs stored in the memory 12. The processor 11 includes various processing devices such as a CPU (Central Processing Unit) and an MPU (Micro-processing Unit). The processor 11 executes processes by an operating state determination unit 103, a power consumption frequency calculation unit 104, an operation amount limit value acquisition unit 105, an operation amount determination unit 106, and an operation control unit 107 as main functions provided by the programs.

[0048] The memory 12 includes memory elements such as a ROM (Read Only Memory), a RAM (Random Access Memory), etc. The memory 12 stores a control program in advance and also stores a variable map such as the one shown in FIG.

[0049] The communication unit 13 is a communication interface for performing wireless communication in accordance with wireless communication standards such as Wi-Fi, Bluetooth (registered trademark), and Zigbee (registered trademark). The communication unit 13 is communicably connected to a wireless network established within the house H, and communicates with other electrical devices 100 via the wireless network. The communication unit 13 operates as a communication unit 101 and a power consumption acquisition unit 102.

[0050] Next, the operation of the electric device 100 will be described with reference to FIG. 8 . The electric device 100 is communicably connected to other electric devices 100 via a network. Each electric device 100 acquires a measurement value of its own power consumption at regular intervals, calculates a power consumption frequency by normalizing the acquired power consumption amount, and transmits the power consumption frequency to other electric devices 100 with which it can communicate. The electric device 100 determines the manipulated variable of an actuator k included in the electric device 100 based on a preset agreement algorithm, and controls the actuator k with the determined manipulated variable. In the following description, an example will be described in which the electric device 100a is communicably connected to electric devices 100b and 100c and calculates the manipulated variables.

[0051] When the user turns on the power of electric device 100a, electric device 100 starts processing.

[0052] The communication unit 101 of the electric device 100a receives, at preset time intervals, power consumption frequencies obtained by normalizing the power consumption of the electric devices 100b and 100c from the other electric devices 100b and 100c (step S1).

[0053] Next, the power consumption obtaining unit 102 obtains the power consumption of the electric device 100a (step S2). Specifically, the electric device 100a obtains a measured value of the electric power P1 supplied to the electric device 100a from the distribution board 400 via the CT1.

[0054] Next, the operation state determination unit 103 determines the operation state of the electric device 100a (step S3). Specifically, the operation state determination unit 103 determines, based on a preset rule, which operation state the electric device 100a is in among the operation states defined in the operation state information illustrated in FIG. 3 .

[0055] For example, if the electrical device 100a is an air conditioner, the operating state determination unit 103 calculates the difference between the set temperature set by the user's remote control and the temperature measured by a temperature sensor mounted on the electrical device 100a. If the calculated temperature difference is equal to or greater than a preset threshold, the operating state determination unit 103 determines that the electrical device 100a is in a started state. On the other hand, if the temperature difference is less than the threshold, the operating state determination unit 103 determines that the electrical device 100a is in a stable state. Furthermore, if no temperature has been set, the operating state determination unit 103 determines that the electrical device 100a is stopped.

[0056] For example, if the electrical appliance 100a is an induction cooking heater, the operating status determination unit 103 determines that the electrical appliance 100a is in a high-output state when the heating power setting information is equal to or greater than a preset value. On the other hand, the operating status determination unit 103 determines that the electrical appliance 100a is in a low-output state when the heating power setting information is less than the preset value. Furthermore, the operating status determination unit 103 determines that the electrical appliance 100a is stopped when the heating power is not set.

[0057] For example, if the electrical device 100a is an electric water heater, the operation status determination unit 103 monitors the water heating time schedule set by the user. If the electrical device 100a is operating during the water heating time period, the operation status determination unit 103 determines that the electrical device 100a is in the water heating state, and otherwise determines that the electrical device 100a is stopped.

[0058] Next, when the power consumption frequency calculation unit 104 determines that the operation state of the electric device 100 is not stopped (step S4; No), the process proceeds to step S5, where the power consumption frequency calculation unit 104 calculates the power consumption frequency of the electric device 100a (step S5). Specifically, the power consumption frequency calculation unit 104 calculates a power consumption frequency by normalizing the power consumption in the range of 0 to 1 based on the operation state of the electric device 100 determined by the operation state determination unit 103. The power consumption frequency calculation unit 104 calculates the power consumption frequency by normalizing the power consumption in the range of 0 to 1 based on the operation state determined in step S3 and the maximum power consumption P ｍａｘ , minimum power consumption P ｍｉｎ The power consumption function f shown in the above formula (1) is a function for calculating the power consumption frequency based on 消費電力度数関数 The power consumption level is calculated from (state).

[0059] Next, the power consumption frequency calculation unit 104 transmits the power consumption frequency of the electric appliance 100a calculated in step S5 to the other electric appliances 100b and 100c via the communication unit 101 (step S6).

[0060] Next, the manipulated variable limit value acquisition unit 105 acquires upper and lower limit values ​​of the manipulated variable of actuator k included in the electrical device 100a based on the operating state determined in step S3 and the power consumption frequency calculated in step S5 (step S7). Specifically, the manipulated variable limit value acquisition unit 105 acquires the upper and lower limit values ​​of the manipulated variable by referring to the variable map shown in FIG. 5 , which is pre-stored in the memory 12. For example, if the electrical device 100a is an air conditioner, the operating state determined in step S3 is the startup state (s = 0), and the power consumption frequency α0 calculated in step S5 is 0.6, the manipulated variable limit value acquisition unit 105 acquires the upper and lower limit values ​​of the manipulated variable of the compressor, 0.6 and 0.4, respectively. The manipulated variable limit value acquisition unit 105 acquires the upper and lower limit values ​​of the manipulated variable of each target actuator k and outputs them to the manipulated variable determination unit 106.

[0061] Next, the operation amount determiner 106 calculates the operation amount of the actuator k included in the electric device 100a (step S8). Specifically, the operation amount determiner 106 calculates the operation amount of the electric device 100a based on the power consumption frequency α ｉ and the power consumption levels α of the other electrical devices 100b and 100c received in step S1. ｊ Compare with α ｉ >α ｊ It is determined whether there are other electric devices 100b and 100c that satisfy the condition.

[0062] The operation amount determination unit 106 determines α ｉ >α ｊ If it is determined that there are other electric devices 100b and 100c such that ｉ (t) is calculated.

[0063] Next, the operation amount determination unit 106 determines the operation amount for each actuator k (step S9). Specifically, the operation amount determination unit 106 determines the operation amount u for each actuator k calculated by the formula (10). ｉ、ｋ (t), and the upper limit value u of the operation amount of each actuator k acquired in step S7. ｉ，ｋ，Ｕｐｐｅｒ and the lower limit u ｉ，ｋ，Ｌｏｗｅｒ The operation amount u of the actuator k is compared with ｉ、ｋ (t) is the upper limit u ｉ，ｋ，Ｕｐｐｅｒ If it exceeds u ｉ、ｋ (t) is the upper limit value u ｉ，ｋ，Ｕｐｐｅｒ and u ｉ、ｋ (t) is the lower limit u ｉ，ｋ，Ｌｏｗｅｒ If it is less than u ｉ、ｋ (t) is the lower limit value u ｉ，ｋ，Ｌｏｗｅｒ otherwise, the calculated u ｉ、ｋ (t) is determined as the manipulated variable to be used.

[0064] On the other hand, the operation amount determining unit 106 determines the power consumption frequency α of the electric device 100a. ｉ and the power consumption levels α of the other electrical devices 100b and 100c. ｊ Compare with each other and α ｉ >α ｊ If it is determined that there are no other electrical devices 100b and 100c for which the previous manipulated variable u ｉ (t-Δt) is determined as the manipulated variable to be used.

[0065] Next, the operation amount determination unit 106 transmits the operation amount of each actuator k determined in step S9 to the operation control unit 107 (step S10). The operation control unit 107 controls the operation of each actuator k based on the output operation amount.

[0066] Next, the manipulated variable determiner 106 determines whether a termination condition for the manipulated variable determination process is satisfied (step S11). The termination condition may be, for example, when the elapsed time of the manipulated variable determination process exceeds a preset time, or when a user transmits a signal instructing the operation variable determination process to stop. If the manipulated variable determiner 106 determines that the termination condition is not satisfied (step S11; No), the process returns to step S1 and the manipulated variable determination process is repeatedly executed. On the other hand, if the manipulated variable determiner 106 determines that the termination condition is satisfied (step S11; Yes), the process is terminated. By repeatedly executing the manipulated variable determination process to which the consensus algorithm is applied, the power consumption frequency of each electrical device 100 is controlled to gradually converge to the convergence value αconvergence.

[0067] Returning to step S4, if the operation state determination unit 103 determines that the operation state of the electric device 100a is stopped (step S4; Yes), the operation state determination unit 103 proceeds to step S11 and determines whether or not a termination condition is satisfied.

[0068] As described above, when the power consumption frequency obtained by normalizing the power consumption of each electric device 100 is greater than the power consumption frequency of another electric device 100, the electric device 100 calculates the manipulated variable of the control target included in the electric device 100 based on the difference between the power consumption frequency of the electric device 100 and the power consumption frequency of the other electric device 100. Then, the electric device 100 controls the operation of the actuator k of the control target based on the calculated manipulated variable. Therefore, power consumption can be reduced without separately installing a dedicated control device.

[0069] Furthermore, by using a power consumption frequency obtained by normalizing the power consumption in calculating the manipulated variable, it is possible to set a common target value for the power consumption amount among different types of electric devices 100 .

[0070] Furthermore, by using the variable map to define the range of operation amount for each operating state and power consumption level, it is possible to reduce the power consumption of the electrical device 100 within a range that does not impair user comfort and convenience.

[0071] Second Embodiment Electrical device 100A according to a second embodiment determines the operation amount of actuator k included in electrical device 100A using a comfort index indicating the degree of user comfort in addition to power consumption.

[0072] As shown in FIG. 9 , the electrical device 100A includes the communication unit 101, the power consumption acquisition unit 102, the operating state determination unit 103, the power consumption frequency calculation unit 104, the operation quantity limit value acquisition unit 105, and the operation control unit 107 that are included in the electrical device 100, and also includes a comfort frequency calculation unit 108 that calculates the user's comfort frequency, and an operation quantity determination unit 106a that determines the operation quantity of the actuator k based on the power consumption frequency calculated by the power consumption frequency calculation unit 104 and the comfort frequency calculated by the comfort frequency calculation unit 108, instead of the operation quantity determination unit 106 included in the electrical device 100.

[0073] The comfort index calculation unit 108 calculates a comfort index indicating the user's level of comfort. The comfort index is a value on the same scale as the power consumption index, ranging from 0 to 1, for example. For example, if the electrical appliance 100A is an air conditioner, the comfort index is calculated using a thermal environment index such as SET*. Specifically, the comfort index calculation unit 108 estimates the sensible temperature based on the average value of the wall surface temperature and the air temperature in the room, or the average value of the floor surface temperature and the air temperature. The comfort index calculation unit 108 calculates the comfort index according to a rule such as setting the comfort index to 1.0 when the calculated sensible temperature is 25 degrees, and reducing the comfort index by 0.1 for every 0.1 degree the sensible temperature deviates from 25 degrees. Furthermore, if the electrical appliance 100A is a cooking appliance such as an induction cooking heater, the comfort index is calculated based on the difference between the set temperature specified by the user and the thermostat measurement value. Furthermore, when electrical device 100A is a water heater, the comfort level is calculated based on the difference between the amount of hot water stored and a preset threshold value.

[0074] The operation amount determiner 106a determines the operation amount of the actuator k based on the power consumption frequency and the comfort frequency. Specifically, the operation amount determiner 106a calculates the operation amount at discrete time intervals Δt. Here, the power consumption frequency α of the electric device 100A at time t is ｉ and comfort level β ｉ Vector value x ｉ(t) is expressed by the following equation (13).

[0075] x ｉ (t) = [α ｉ , β ｉ ]T Formula (13)

[0076] And the vector value x ｉ (t) can be expressed as a linear time-invariant system as shown in the following equation (14).

[0077]

[0078] In formula (14), u ｉ (t) is a vertical vector indicating the operation amount of each actuator k of the electric device 100A, and is expressed by equation (15). ｉ (t) = [u ｉ、０ , u ｉ、１ , u ｉ、２ , ..., u ｉ、ｋ－１ ] Ｔ Formula (15)

[0079] Also, in formula (14), A ｉ is a 2x1 vector and B is an nx1 vector.

[0080] The value of the power consumption frequency of the electrical device 100A at time t is α ｉ , the value of the power consumption frequency of another electric device 100A communicably connected to the electric device 100A is set to α ｊ , the comfort factor value of the electrical device 100A is β ｉ , the comfort factor value of another electric device 100A communicably connected to the electric device 100A is β ｊ Then, the vector value x of the electric device 100A at time t is ｉ (t) and the vector value x of the other electric device 100A at time t ｊ (t) are expressed by the following equations (16) and (17), respectively.

[0081] x ｉ (t) = [α ｉ , β ｉ ] Ｔ Formula (16)

[0082] xj(t) = [α ｊ , β ｊ ]Ｔ Formula (17)

[0083] The operation amount determining unit 106a determines the power consumption frequency α of the electric device 100A. ｉ , and comfort level β ｉ and the power consumption frequency α of the other electrical device 100A. ｉ , and comfort level β ｊ Compare and respectively, and α ｉ >α ｊ , or β ｉ <β ｊ If it is determined that there is another electric device 100A such that ｉ (t) is calculated.

[0084]

[0085] In equation (18), K is a 2×n vector.

[0086] On the other hand, the operation amount determining unit 106a determines α ｉ >α ｊ , or β ｉ <β ｊ If it is determined that there is no other electric device 100A for which the operation amount u ｉ Calculate (t-Δt).

[0087] Next, the operation of the operation amount calculation process by electric device 100A will be described with reference to Fig. 10. In Fig. 10, steps common to the flowchart shown in Fig. 8 are included, and therefore differences will be mainly described.

[0088] In step S21, the communication unit 101 receives the power consumption index and the comfort index of the other electric appliance 100A from the other electric appliance 100A at preset time intervals.

[0089] In step S25, power consumption frequency calculation unit 104 calculates a power consumption frequency by normalizing the power consumption to a range of 0 to 1, based on the operation state of electric device 100 determined by operation state determination unit 103, in the same manner as in step S5. Furthermore, comfort frequency calculation unit 108 calculates a comfort frequency indicating the degree of comfort of the user. Specifically, comfort frequency calculation unit 108 calculates the comfort frequency based on a comfort frequency calculation rule that is preset according to the type of electric device 100A.

[0090] Next, the power consumption level calculation unit 104 transmits the power consumption level and the comfort level calculated in step S5 to the other electric device 100A via the communication unit 101 (step S26).

[0091] In step S28, the operation amount determiner 106a calculates the operation amount of the actuator k included in the electric device 100a. Specifically, the operation amount determiner 106a calculates the operation amount of the electric device 100A calculated in step S25 based on the power consumption frequency α ｉ , and comfort level β ｉ and the power consumption frequency α of the other electrical device 100A. ｉ , and comfort level β ｊ Compare and respectively, and α ｉ >α ｊ , or β ｉ <β ｊ It is determined whether there is another electric device 100A that satisfies the condition.

[0092] The operation amount determining unit 106a determines α ｉ >α ｊ , or β ｉ <β ｊ If it is determined that there is another electric device 100A such that ｉ (t) is calculated.

[0093] As described above, according to electric device 100A, the operation amount can be determined taking into consideration the user's comfort level as well as the power consumption.

[0094] (Variation 1) In the first embodiment, the power consumption reduction system 1 may further include an operation terminal that controls the convergence value αconvergence of the power consumption frequency that converges by the consensus algorithm. The operation terminal is, for example, a portable device such as a smartphone, a tablet terminal, a remote control, a mobile phone, or a laptop computer. The operation terminal includes an input unit such as a push button, a touch panel, or a touch pad, a display unit such as an organic EL (Electro Luminescence) display or a liquid crystal display, and a communication interface. The operation terminal communicates with the electrical device 100 in accordance with a well-known communication standard. When the user specifies the electrical device 100 to be operated, the operation terminal accepts a target value of the power consumption frequency and transmits the accepted target value to the electrical device 100. The electrical device 100 that has received the target value of the power consumption frequency transmits the power consumption frequency α received from the other electrical device 100. ｊ and the target value of the power consumption frequency are applied to the consensus algorithm to calculate the operation amount of actuator k of electrical device 100. By setting a sufficiently small value as the target value of the power consumption frequency, it is possible to reduce the power consumption of the entire power consumption reduction system 1.

[0095] (Variation 2) The operation terminal of Variation 1 is not limited to being operated by a user, but may be operated externally via the Internet from an electric power company, an electric power trading market, or the like to set a target value for the power consumption frequency. This makes it possible to support external control of demand response control in the power grid without going through a server such as a HEMS.

[0096] (Variation 3) In the above-described first embodiment, the power consumption reduction system 1 may further include a communication device that mediates communication between the electric devices 100a, 100b, 100c, .... The communication device has a predetermined communication interface and is communicatively connected to a wireless network established in the house H via a wired or wireless connection. The communication device communicates with each of the electric devices 100a, 100b, 100c, ... via the wireless network, and transmits, for example, the power consumption frequency of the electric device 100a to each of the other electric devices 100b, 100c, .... In this way, even if there are electric devices 100 that cannot communicate directly in the power consumption reduction system 1, it is possible for the electric devices 100 to exchange information with each other via the communication device.

[0097] (Variation 4) When it is determined that a predetermined condition is satisfied, the electric devices 100a, 100b, 100c, ... may calculate an operation amount and stop the process of controlling the operation of the actuator k based on the calculated operation amount. Specifically, the electric devices 100a, 100b, 100c, ... stop the process when it is determined that the difference between the maximum and minimum values ​​of the power consumption frequency during a predetermined time T is equal to or greater than a predetermined threshold. As illustrated in FIG. 11 , the electric devices 100a, 100b, 100c, ... perform the same processes as steps S1 to S6 performed by the electric device 100. Next, in step S31, the power consumption frequency calculation units 104 of the electric devices 100a, 100b, 100c, ... obtain the current time from the timers provided in the electric devices 100a, 100b, 100c, ... and calculate a time that is a predetermined time T before the current time. The power consumption frequency calculation unit 104 calculates the maximum power consumption frequency α from the calculated time to the current time. ｍａｘ and the minimum value α ｍｉｎ The power consumption frequency calculation unit 104 determines whether the difference between the maximum value α ｍａｘ and the minimum value α ｍｉｎ If it is determined that the difference between the maximum value α and the power consumption frequency calculation unit 104 is equal to or greater than the threshold value A (step S31; Yes), the process proceeds to step S11, where it is determined whether or not the termination condition is satisfied (step S11). ｍａｘand the minimum value α ｍｉｎ If it is determined that the difference is less than threshold A (step S31; No), the process is the same as that of steps S7 to S11 by electric device 100.

[0098] Furthermore, the electric appliances 100a, 100b, 100c, ... may calculate the difference between the maximum and minimum comfort index values ​​in addition to the power consumption index value, and may stop the process when either the power consumption index value or the difference between the maximum and minimum comfort index values ​​is equal to or greater than a predetermined threshold value. ０ In step S31, the electric devices 100a, 100b, 100c, ... may be configured to calculate the maximum value α ｍａｘ and the minimum value α ｍｉｎ If it is determined that the difference between the power consumption frequency and the electric device 100a is equal to or greater than threshold A (step S31; Yes), the manipulated variable determination process may be terminated. As a result, for example, when the electric device 100a terminates the manipulated variable determination process, the electric devices 100b, 100c, ... other than the electric device 100a, whose power consumption frequency fluctuates greatly, continue the manipulated variable determination process, and it is expected that the electric device 100a will more easily converge to the convergence value αconvergence. Furthermore, the electric device 100a that has terminated the manipulated variable determination process may operate as a communication device that mediates communication between the other electric devices 100b, 100c, .... Note that the power consumption frequency calculation unit 104 is an example of a determination unit.

[0099] In the above embodiment, the house H has been described as an example of a power consumption area. However, the power consumption area is not limited to a general residence such as the house H, and may be an apartment building, a facility, a building, a factory, or the like, as long as it is an area where a plurality of electrical devices 100 that receive power from the commercial power grid 300 and consume power are installed.

[0100] Furthermore, in the above embodiment, the electrical devices 100a, 100b, 100c, ... have been described as transmitting and receiving power consumption levels in both directions, but this is not limited to this, and each combination of electrical devices 100 may communicate either bidirectionally or unidirectionally.

[0101] In the above embodiment, the manipulated variable determiner 106 determines the manipulated variable u of each actuator k by the consensus algorithm shown in equation (10). ｉ For example, the operation amount determiner 106 calculates the operation amount u (t) of each actuator k using the following equation (19): ｉ (t) may be calculated.

[0102] u ｉ (t) = [C ｉ，０ , C ｉ，１ , ..., C ｉ，ｎ－１ ] Ｔ Formula (19)

[0103] In formula (19), each C ｉ，ｍ is a preset constant, and a control input amount set to reduce the power consumption of each actuator k of the electric device 100 is set. For example, a different C ｉ，ｍ By preparing the combinations in advance, the power consumption of each C is determined according to the difference between the power consumption frequency of the own device and the power consumption frequency of the other electric devices 100. ｉ，ｍ may be dynamically changed.

[0104] In this case, if the operation amount determination unit 106 determines in step S8 of the operation amount determination process illustrated in FIG. 8 that there are other electrical devices 100b, 100c such that αi > αj, it can calculate the vertical vector ui(t) indicating the operation amount of each actuator k of the electrical device 100a using the above equation (19) instead of the agreement algorithm shown in the above equation (10).

[0105] Furthermore, each function of electrical device 100 can be realized using a normal computer system. For example, a program for realizing each function of electrical device 100 may be stored on a computer-readable recording medium such as a CD-ROM (Compact Disc Read Only Memory) or a DVD-ROM (Digital Versatile Disc Read Only Memory) and distributed, and the program may be installed on a computer to configure a computer that can realize each of the above-described functions.

[0106] Furthermore, when each function is realized by sharing the functions between an OS (Operating System) and an application, or by cooperation between the OS and the application, only the application may be stored on the recording medium.

[0107] The present disclosure allows various embodiments and modifications without departing from the broad spirit and scope of the present disclosure. Furthermore, the above-described embodiments are intended to explain the present disclosure and do not limit the scope of the present disclosure. In other words, the scope of the present disclosure is defined by the claims, not the embodiments. Various modifications made within the scope of the claims and the meaning of equivalent disclosures are considered to be within the scope of the present disclosure.

[0108] Various aspects of the present disclosure are summarized below as appendices.

[0109] (Supplementary Note 1) A power consumption reduction system including a plurality of electrical devices that consume power, wherein the electrical devices include: a power consumption acquisition unit that acquires the power consumption of the electrical devices; a power consumption frequency calculation unit that calculates a power consumption frequency by normalizing the power consumption acquired by the power consumption acquisition unit based on the operating state of the electrical devices; a transmission unit that transmits the power consumption frequency calculated by the power consumption frequency calculation unit to other electrical devices; a reception unit that receives the power consumption frequencies of the other electrical devices; a manipulation amount calculation unit that, when the power consumption frequency calculated by the power consumption frequency calculation unit is greater than the power consumption frequency received by the reception unit, calculates a manipulation amount of a control object included in the electrical devices based on the difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the power consumption frequency received by the reception unit; and an operation control unit that controls the operation of the control object based on the manipulation amount calculated by the manipulation amount calculation unit. (Supplementary Note 2) The power consumption reduction system according to Supplementary Note 1, wherein the operation amount calculation unit calculates the operation amount using a preset agreement algorithm based on a difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the power consumption frequency received by the receiving unit. (Supplementary Note 3) The power consumption reduction system according to Supplementary Note 1 or 2, wherein the electric device further includes a storage unit that stores operation amount range information that defines upper and lower limit values ​​of the operation amount of the control object for each operating state of the electric device and for each of the power consumption frequencies calculated by the power consumption frequency calculation unit, and wherein the operation amount calculation unit determines the upper limit value to be the operation amount of the control object when the calculated operation amount is above the upper limit value, and determines the lower limit value to be the operation amount of the control object when the calculated operation amount is below the lower limit value.(Supplementary Note 4) The power consumption reduction system according to any one of Supplementary Notes 1 to 3, further comprising an operation terminal that outputs a target value of the power consumption frequency to the electrical device, wherein the receiving unit further receives the target value of the power consumption frequency from the operation terminal, and the operation amount calculation unit calculates an operation amount of a control target included in the electrical device using a preset agreement algorithm based on a difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the power consumption frequency received by the receiving unit, and a difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the target value. (Supplementary Note 5) The power consumption reduction system according to any one of Supplementary Notes 1 to 4, further comprising a communication device that mediates communication between the plurality of electrical devices, wherein the transmitting unit transmits the power consumption frequency to the other electrical device via the communication device, and the receiving unit receives the power consumption frequency of the other electrical device via the communication device. (Supplementary Note 6) The power consumption reduction system according to any one of Supplementary Notes 1 to 5, wherein the electrical device further comprises a comfort index calculation unit that calculates a comfort index that is an index related to user comfort; the transmission unit further transmits the comfort index calculated by the comfort index calculation unit to the other electrical device; the reception unit further receives the comfort index of the other electrical device; and the operation amount calculation unit calculates an operation amount of a control target provided in the electrical device using a preset consensus algorithm based on the difference between the power consumption index calculated by the power consumption index calculation unit and the power consumption index received by the reception unit, and the difference between the comfort index calculated by the comfort index calculation unit and the comfort index received by the reception unit. (Supplementary Note 7) The power consumption reduction system described in any one of Supplementary Notes 1 to 6, wherein the electrical device further includes a determination unit that determines whether a difference between a maximum value and a minimum value of the power consumption frequency calculated by the power consumption frequency calculation unit during a predetermined time interval is equal to or greater than a predetermined threshold, and the operation amount calculation unit does not perform processing to calculate the operation amount when the determination unit determines that the difference between the maximum value and the minimum value of the power consumption frequency is equal to or greater than the threshold.(Supplementary Note 8) An electric device that consumes power, comprising: a power consumption acquisition unit that acquires the power consumption of the electric device; a power consumption frequency calculation unit that calculates a power consumption frequency by normalizing the power consumption acquired by the power consumption acquisition unit based on an operating state of the electric device; a transmission unit that transmits the power consumption frequency calculated by the power consumption frequency calculation unit to another electric device; a reception unit that receives the power consumption frequency of the other electric device; an operation amount calculation unit that, when the power consumption frequency calculated by the power consumption frequency calculation unit is greater than the power consumption frequency received by the reception unit, calculates an operation amount of a control object included in the electric device based on a difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the power consumption frequency received by the reception unit; and an operation control unit that controls the operation of the control object based on the operation amount calculated by the operation amount calculation unit. (Supplementary Note 9) A power consumption reduction method comprising: a step of acquiring power consumption of an electric device that consumes power; a step of calculating a power consumption frequency by normalizing the acquired power consumption based on the operating state of the electric device; a step of transmitting the calculated power consumption frequency to another electric device; a step of calculating, when the calculated power consumption frequency is greater than the received power consumption frequency of the other electric device, an operation amount of a control object equipped in the electric device based on a difference between the calculated power consumption frequency and the power consumption frequency of the other electric device; and a step of controlling the operation of the control object based on the calculated operation amount. (Supplementary Note 10) A program causing a computer to execute the following processes: acquiring power consumption of an electric device that consumes power; calculating a power consumption frequency obtained by normalizing the acquired power consumption based on the operating state of the electric device; transmitting the calculated power consumption frequency to another electric device; if the calculated power consumption frequency is greater than the received power consumption frequency of the other electric device, calculating an operation amount of a control object provided in the electric device based on the difference between the calculated power consumption frequency and the power consumption frequency of the other electric device; and controlling the operation of the control object based on the calculated operation amount.

[0110] It should be noted that the present disclosure allows various embodiments and modifications without departing from the broad spirit and scope of the present disclosure. Furthermore, the above-described embodiments are intended to explain the disclosure and do not limit the scope of the present disclosure. That is, the scope of the present disclosure is defined by the claims, not the embodiments. Various modifications made within the scope of the claims and within the meaning of the disclosure equivalent thereto are considered to be within the scope of the present disclosure.

[0111] This application is based on Japanese Patent Application No. 2023-113591, filed on July 11, 2023. The entire specification, claims, and drawings of Japanese Patent Application No. 2023-113591 are incorporated herein by reference.

[0112] 1 Power consumption reduction system, 100, 100a, 100b, 100c, 100A Electrical equipment, 101 Communication unit, 102 Power consumption acquisition unit, 103 Operation state determination unit, 104 Power consumption frequency calculation unit, 105 Operation quantity limit value acquisition unit, 106, 106a Operation quantity determination unit, 107 Operation control unit, 108 Comfort frequency calculation unit, 200 Network, 300 Commercial power system, 400 Distribution board, 11 Processor, 12 Memory, 13 Communication unit, 99 Internal bus.

Claims

1. A power consumption reduction system including a plurality of electrical devices that consume power, The electrical equipment includes: a power consumption acquisition unit that acquires power consumption of the electrical device; a power consumption frequency calculation unit that calculates a power consumption frequency by normalizing the power consumption acquired by the power consumption acquisition unit based on the operating state of the electrical device; a transmission unit that transmits the power consumption level calculated by the power consumption level calculation unit to another electrical device; a receiving unit that receives the power consumption level of the other electrical appliance; an operation amount calculation unit that calculates an operation amount of a control target included in the electrical device based on a difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the power consumption frequency received by the receiving unit when the power consumption frequency calculated by the power consumption frequency calculation unit is greater than the power consumption frequency received by the receiving unit; an operation control unit that controls operation of the controlled object based on the operation amount calculated by the operation amount calculation unit; A power consumption reduction system comprising:

2. the operation amount calculation unit calculates the operation amount by a preset consensus algorithm based on a difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the power consumption frequency received by the receiving unit. The power consumption reduction system according to claim 1 .

3. The electrical equipment includes: a storage unit configured to store manipulated variable range information that defines upper and lower limit values ​​of the manipulated variable of the controlled object for each operating state of the electric device and for each of the power consumption intensities calculated by the power consumption intensities calculation unit, the manipulated variable calculation unit determines the upper limit value as the manipulated variable of the controlled object when the calculated manipulated variable exceeds the upper limit value, and determines the lower limit value as the manipulated variable of the controlled object when the calculated manipulated variable is below the lower limit value. The power consumption reduction system according to claim 1 or 2.

4. an operation terminal that outputs the target value of the power consumption frequency to the electrical device; The receiving unit further receives the target value of the power consumption frequency from the operation terminal, the operation amount calculation unit calculates an operation amount of a control target included in the electrical device by a preset consensus algorithm based on a difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the power consumption frequency received by the reception unit, and a difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the target value; The power consumption reduction system according to claim 1 or 2.

5. a communication device that mediates communication between the plurality of electrical devices; the transmission unit transmits the power consumption level to the other electrical appliance via the communication device; the receiving unit receives the power consumption level of the other electrical device via the communication device; The power consumption reduction system according to claim 1 or 2.

6. The electrical equipment includes: a comfort index calculation unit that calculates a comfort index that is an index related to the comfort of the user; the transmitting unit further transmits the comfort factor calculated by the comfort factor calculating unit to the other electric appliance; The receiving unit further receives comfort levels of other electrical appliances, the operation amount calculation unit calculates an operation amount of a control target included in the electrical device by a preset consensus algorithm based on a difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the power consumption frequency received by the receiving unit, and a difference between the comfort frequency calculated by the comfort frequency calculation unit and the comfort frequency received by the receiving unit. The power consumption reduction system according to claim 1 or 2.

7. The electrical equipment includes: a determination unit that determines whether or not a difference between a maximum value and a minimum value of the power consumption frequency calculated by the power consumption frequency calculation unit during a predetermined time interval is equal to or greater than a predetermined threshold value, the operation amount calculation unit does not perform the process of calculating the operation amount when the determination unit determines that the difference between the maximum value and the minimum value of the power consumption frequency is equal to or greater than the threshold value; The power consumption reduction system according to claim 1 or 2.

8. An electrical device that consumes power, a power consumption acquisition unit that acquires power consumption of the electrical device; a power consumption frequency calculation unit that calculates a power consumption frequency by normalizing the power consumption acquired by the power consumption acquisition unit based on the operating state of the electrical device; a transmission unit that transmits the power consumption level calculated by the power consumption level calculation unit to another electrical device; a receiving unit that receives the power consumption level of the other electrical appliance; an operation amount calculation unit that calculates an operation amount of a control target included in the electrical device based on a difference between the power consumption frequency calculated by the power consumption frequency calculation unit and the power consumption frequency received by the receiving unit when the power consumption frequency calculated by the power consumption frequency calculation unit is greater than the power consumption frequency received by the receiving unit; an operation control unit that controls operation of the controlled object based on the operation amount calculated by the operation amount calculation unit; Electrical equipment comprising:

9. obtaining power consumption of an electrical device that consumes power; calculating a power consumption frequency by normalizing the acquired power consumption based on the operating state of the electrical device; transmitting the calculated power consumption level to another electrical device; If the calculated power consumption frequency is greater than the received power consumption frequency of the other electric device, calculating an operation amount of a control target included in the electric device based on a difference between the calculated power consumption frequency and the power consumption frequency of the other electric device; controlling the operation of the controlled object based on the calculated manipulated variable; A power consumption reduction method comprising:

10. On the computer, A process of acquiring power consumption of an electrical device that consumes power; A process of calculating a power consumption frequency by normalizing the acquired power consumption based on the operating state of the electrical device; a process of transmitting the calculated power consumption level to another electrical device; a process of calculating, when the calculated power consumption frequency is greater than the received power consumption frequency of the other electric device, an operation amount of a control target included in the electric device based on a difference between the calculated power consumption frequency and the power consumption frequency of the other electric device; A process of controlling the operation of the control target based on the calculated manipulated variable; A program that executes the following.