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WO2025013827A1 - Système de réduction de consommation d'énergie, équipement électrique, procédé de réduction de consommation d'énergie et programme - Google Patents

Système de réduction de consommation d'énergie, équipement électrique, procédé de réduction de consommation d'énergie et programme Download PDF

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Publication number
WO2025013827A1
WO2025013827A1 PCT/JP2024/024623 JP2024024623W WO2025013827A1 WO 2025013827 A1 WO2025013827 A1 WO 2025013827A1 JP 2024024623 W JP2024024623 W JP 2024024623W WO 2025013827 A1 WO2025013827 A1 WO 2025013827A1
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WIPO (PCT)
Prior art keywords
power consumption
operation amount
electrical device
calculated
calculation unit
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PCT/JP2024/024623
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English (en)
Japanese (ja)
Inventor
孟 池田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to JP2025532763A priority Critical patent/JPWO2025013827A1/ja
Publication of WO2025013827A1 publication Critical patent/WO2025013827A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/12—Circuit arrangements for AC mains or AC distribution networks for adjusting voltage in AC networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for AC mains or AC distribution networks for adjusting voltage in AC networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading

Definitions

  • This disclosure relates to a power consumption reduction system, an electrical device, a power consumption reduction method, and a program.
  • Patent Document 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 multiple air conditioners and a target value, while issuing power reduction commands to some air conditioners.
  • control systems such as HEMS (Home Energy Management System) to which this control device is applied may not be able to control electrical equipment that uses different communication standards. Therefore, if it is not possible to install a dedicated control device on the network at the installation location or to connect it to electrical equipment, it is difficult to properly manage the power consumption of electrical equipment.
  • HEMS Home Energy Management System
  • This disclosure has been made in consideration of the above-mentioned circumstances, and aims to provide a power consumption reduction system, electrical device, power consumption reduction method, and program that can appropriately manage power consumption without installing a dedicated control device.
  • the power consumption reduction system is a power consumption reduction system including a plurality of electrical devices that consume power
  • 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 that normalizes 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 frequency of the other electrical devices, an operation amount calculation unit that calculates an operation 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 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, 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.
  • the electrical device calculates the operation amount of the control object equipped in the electrical device based on the difference between the power consumption frequency of the electrical device itself and the power consumption frequency of the other electrical device. Then, the operation of the control object is controlled based on the calculated operation amount. Therefore, power consumption can be appropriately managed without installing a dedicated control device.
  • FIG. 1 is a diagram showing a configuration of a power consumption reduction system according to a first embodiment of the present disclosure.
  • FIG. 2 is a block diagram showing the configuration of the electrical device shown in FIG.
  • FIG. 2 is a diagram showing an example of operation status information indicating the operation status of each type of electrical device shown in FIG. 1 .
  • FIG. 2 is a diagram showing an example of control target information indicating a control target for each type of electrical device shown in FIG. 1 .
  • FIG. 2 is a diagram showing an example of a variable map stored in the electrical device shown in FIG. 1 ; A diagram showing an example of the operation of the consensus algorithm.
  • FIG. 2 is a block diagram showing the physical configuration of the electrical device shown in FIG.
  • FIG. 13 is a diagram showing a configuration of an electrical device according to a second embodiment.
  • 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 each electric device 100 is communicably connected via a network 200.
  • electric devices 100 electric devices 100a, 100b, 100c, ... are referred to without distinction, they will be collectively referred to as electric devices 100.
  • the electrical appliances 100 are appliances that consume electricity in the house H.
  • the electrical appliances 100 are, for example, home appliances such as an induction heating (IH) cooking heater, an electromagnetic cooker, a washing machine, a television, and a refrigerator, as well as 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.
  • IH induction heating
  • 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.
  • Electrical devices 100a, 100b, 100c, ... are respectively connected to power lines D1, D2, D3, ... branched off by distribution board 400, and operate on power supplied from commercial power system 300.
  • Electrical device 100a is connected to CT1 (Current Transformer) installed on power line D1.
  • CT1 is a sensor that measures AC current.
  • Electrical device 100a acquires a measurement value of power P1 supplied to electrical device 100a from distribution board 400 via CT1.
  • Power P1 corresponds to the power consumed by electrical device 100a.
  • Electrical devices 100b, 100c are respectively connected to CT2, CT3 installed on power lines D2, D3, respectively.
  • the electrical devices 100b and 100c acquire the measured values of the power P2 and P3 supplied to the electrical devices 100b and 100c from the distribution board 400 via CT2 and CT3, respectively.
  • the power P2 and P3 correspond to the power consumed by the electrical devices 100b and 100c, respectively.
  • each electrical device 100 calculates a power consumption frequency that normalizes the power consumption of the electrical device itself. Furthermore, the electrical device 100 acquires the power consumption frequency of the other electrical devices 100 from the other electrical devices 100 with which it can communicate. Each electrical device 100 calculates the operation amount of the actuator provided in each electrical device 100 by a consensus algorithm that realizes consensus control that causes the power consumption frequency of each electrical device 100 to converge to the same value.
  • the electrical device 100 includes a communication unit 101 for transmitting and receiving data to and from other electrical devices 100, a power consumption acquisition unit 102 for acquiring the amount of power consumption of the electrical device 100, an operation state determination unit 103 for determining the operation state of the electrical device 100, a power consumption frequency calculation unit 104 for calculating a power consumption frequency normalized to the amount of power consumption, an operation amount limit value acquisition unit 105 for acquiring upper and lower limit values of the operation amount of an actuator provided in the electrical device 100, an operation amount determination unit 106 for determining the operation amount of an actuator provided in the electrical device 100, and an operation control unit 107 for controlling the actuator based on the operation amount determined by the operation amount determination unit 106.
  • the communication unit 101 transmits and receives data to and from the other electrical devices 100. Specifically, the communication unit 101 transmits the power consumption level of its own device, calculated by the power consumption level calculation unit 104, to the other electrical devices 100 at preset time intervals. The communication unit 101 also receives the power consumption level of the other electrical devices 100 from the other electrical devices 100 at preset time intervals.
  • the communication unit 101 is an example of a receiving unit and a transmitting unit.
  • 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 the power P1, P2, P3, ... supplied from the distribution board 400 to the electrical devices 100a, 100b, 100c, ... through the power lines D1, D2, D3, ....
  • the power consumption acquisition unit 102 of the electrical device 100a communicates with the CT1 installed on the power line D1, and acquires the measurement value of the power P1 measured by the CT1.
  • the power consumption acquisition unit 102 of the electrical device 100b communicates with the CT2 installed on the power line D2, and acquires the measurement value of the power P2 measured by the CT2.
  • the power consumption acquisition unit 102 of the electrical device 100c communicates with the CT3 installed on the power line D3, and acquires the measurement value of the power P3 measured by the CT3.
  • the operation state determination unit 103 monitors the state of the electrical device 100 at preset time intervals such as one minute, ten minutes, one hour, etc., and determines the operation state of the electrical device itself. Specifically, the operation state determination unit 103 determines, based on preset rules, which of the operation states defined in the operation state information indicating the operation state for each type of electrical device 100 shown in FIG. 3 exists. Details of the processing by the operation state determination unit 103 will be described later.
  • the power consumption frequency calculation unit 104 calculates a power consumption frequency by normalizing the power consumption of the electrical 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 electrical device 100 determined by the operation state determination unit 103. The power consumption frequency calculation unit 104 calculates the power consumption frequency from a power consumption frequency function f power consumption frequency function (state), which is a function for calculating a power consumption frequency based on the determined state, using the following formula (1).
  • P(t) is a measured value of power consumption acquired by the power consumption acquiring unit 102
  • P max is a maximum power consumption amount in the operating state of the electric device 100 determined by the operating state determining unit 103
  • P min is a minimum power consumption amount in the determined operating state of the electric device 100.
  • P max and P min are set in advance by the manufacturer of the electric device 100 for each type and each operating state of the electric device 100.
  • the average power consumption when the operating state is a low output state is defined as P Low and Nominal
  • P min and P max are set by the following equations (2) and (3), respectively.
  • P High and P Nominal the average values of power consumption when the operating state is the high output state are defined as P High and P Nominal , and P min and P max are set by the following equations (4) and (5), respectively.
  • the operation amount limit value acquisition unit 105 acquires the upper limit value and the lower limit value of the operation amount of 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, when the electrical device 100 is an air conditioner, the operation amount limit value acquisition unit 105 acquires the upper limit value and the lower limit value of the operation amount for controlling the compressor frequency, the opening degree of the electronic expansion valve, the rotation speed of the indoor fan, and the rotation speed of the outdoor fan. When the electrical device 100 is an induction cooking heater, the operation amount limit value acquisition unit 105 acquires the upper limit value and the lower limit value of the operation amount for controlling the amount of current flowing through the induction coil. When the electrical device 100 is a water heater, the operation amount determination unit 106 acquires the upper limit value and the lower limit value of the operation amount for controlling the compressor frequency, the opening degree of the electronic expansion valve, and the rotation speed of the outdoor fan.
  • the operation amount limit value acquisition unit 105 acquires the upper limit value u k, s,Upper and the lower limit value u k,s,Lower of the operation amount of each actuator k by referring to a variable map that defines the upper limit value u k,s,Upper and the lower limit value u k,s,Lower of the operation amount of each actuator k for each power consumption intensity ⁇ 0 calculated by the power consumption intensity calculation unit 104 and for each operating state s of the electric device 100, as illustrated in Fig. 5.
  • the manipulated variable determination unit 106 determines the manipulated variable of each actuator k to be controlled. Specifically, the manipulated variable determination unit 106 calculates the manipulated variable at discrete time intervals ⁇ t.
  • the power consumption frequency x i (t) of the electric device 100 at time t can be expressed by a linear time-invariant system as shown in the following equation (6).
  • u i (t) is a vertical vector indicating the operation amount of each actuator k of the electric device 100, and is expressed by equation (7).
  • u i (t) [u i, 0 , u i, 1 , u i, 2 ,..., u i, n-1 ] T formula (7)
  • A is a scalar coefficient
  • B is an n x 1 vector.
  • the power consumption frequency value of the electrical device 100 at time t is ⁇ i and the power consumption frequency value of another electrical device 100 communicatively connected to the electrical device 100 is ⁇ j
  • the power consumption frequency x i (t) of the electrical device 100 at time t and the power consumption frequency x j (t) of the other electrical device 100 at time t are expressed by the following equations (8) and (9), respectively.
  • the operation amount determination unit 106 of the electrical device 100 compares the power consumption frequency ⁇ i of the electrical device 100 with the power consumption frequency ⁇ j of another electrical device 100, and if it determines that there is another electrical device 100 for which ⁇ i > ⁇ j , it calculates the operation amount ui (t) of each actuator k using the following equation (10).
  • K is a 1 ⁇ n vector that can be set arbitrarily.
  • the operation amount determination unit 106 compares the operation amount u i,k (t) for each actuator k calculated by equation (10) with the upper limit value u i,k,Upper and lower limit value u i,k,Lower of the operation amount for each actuator k calculated by the operation amount limit value acquisition unit 105, and determines u i,k (t) to be the upper limit value u k,s,Upper if u i,k (t) exceeds the upper limit value u k,s,Upper , and determines u i,k (t) to be the lower limit value u i,k,Lower if u i,k (t) is below the lower limit value u i,k,Lower .
  • the operation amount determination unit 106 compares the power consumption frequency ⁇ i of the electrical device 100 with the power consumption frequency ⁇ j of the other electrical devices 100, and if it determines that there is no other electrical device 100 for which ⁇ i > ⁇ j , it determines the previous operation amount u i (t- ⁇ t) as the operation amount to be used using the following equation (11).
  • the amount u i (t) for initializing a cost function J(x(t)) including the power consumption frequency x(t) may be used by using model predictive control shown in the following formula (12) instead of formula (11). This makes it possible to reduce the power consumption frequency of the electric device 100, and is therefore expected to reduce power consumption in the entire network more quickly.
  • operation amount determination unit 106 is an example of an operation amount calculation unit.
  • the operation control unit 107 controls the operation of the actuator k of the electrical device 100 based on the operation amount determined by the operation amount determination unit 106.
  • 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.
  • the processor 11 reads and executes the 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 the processes of the operation state determination unit 103, the power consumption frequency calculation unit 104, the operation amount limit value acquisition unit 105, the operation amount determination unit 106, and the operation control unit 107 as the main functions provided by the programs.
  • Memory 12 includes memory elements such as ROM (Read Only Memory) and RAM (Random Access Memory). Memory 12 stores the control program in advance and also stores the variable map shown in FIG. 5.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the communication unit 13 is a communication interface for performing wireless communication conforming to wireless communication standards such as Wi-Fi, Bluetooth (registered trademark), and Zigbee (registered trademark).
  • the communication unit 13 is communicatively 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.
  • the electric device 100 is communicatively 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 it to other electric devices 100 with which it can communicate.
  • the electric device 100 determines the operation amount of the actuator k provided in the electric device 100 based on a preset consensus algorithm, and controls the actuator k with the determined operation amount.
  • the electric device 100a is communicatively connected to the electric devices 100b and 100c and calculates the operation amount.
  • the electrical device 100 starts processing.
  • the communication unit 101 of the electrical device 100a receives the power consumption frequency obtained by normalizing the power consumption of the electrical devices 100b and 100c from the other electrical devices 100b and 100c at a preset time interval (step S1).
  • the power consumption acquisition unit 102 acquires the power consumption of the electrical device 100a (step S2). Specifically, the electrical device 100a acquires a measurement value of the power P1 supplied to the electrical device 100a from the distribution board 400 via CT1.
  • the operation state determination unit 103 determines the operation state of the electrical device 100a (step S3). Specifically, the operation state determination unit 103 determines, based on a preset rule, which of the operation states defined in the operation state information illustrated in FIG. 3 the electrical device 100a is in.
  • the operation state determination unit 103 finds the difference between the set temperature set by the user via remote control operation and the temperature of a temperature sensor implemented in the electrical device 100a, and if the found temperature difference is equal to or greater than a preset threshold, it determines that the state of the electrical device 100a is at startup. On the other hand, if the temperature difference is less than the threshold, the operation state determination unit 103 determines that the state is stable. Also, if no temperature has been set, the operation state determination unit 103 determines that the electrical device 100a is stopped.
  • the operation state determination unit 103 determines that the electrical device 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 operation state determination unit 103 determines that the electrical device is in a low-output state when the heating power setting information is less than a preset value. Furthermore, the operation state determination unit 103 determines that the electrical device is stopped when the heating power is not set.
  • the operation status determination unit 103 monitors the boiling time schedule set by the user. If the electrical device 100a is operating during the boiling time period, the operation status determination unit 103 determines that the electrical device 100a is in the boiling state, and otherwise determines that the electrical device 100a is stopped.
  • step S5 the power consumption level calculation unit 104 calculates the power consumption level of the electric device 100a (step S5). Specifically, the power consumption level calculation unit 104 obtains a power consumption level in which the power consumption is normalized to a 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 level calculation unit 104 calculates the power consumption level from the power consumption level function f power consumption level function (state) shown in the above formula (1), which is a function for obtaining a power consumption level based on the operation state determined in step S3 and the maximum power consumption P max and the minimum power consumption P min preset for each type and operation state of the electric device 100.
  • the power consumption frequency calculation unit 104 transmits the power consumption frequency of the electrical device 100a calculated in step S5 to the other electrical devices 100b and 100c via the communication unit 101 (step S6).
  • the operation amount determination unit 106 calculates the operation amount of the actuator k included in the electric device 100a (step S8). Specifically, the operation amount determination unit 106 compares the power consumption intensity ⁇ i of the electric device 100a calculated in step S5 with the power consumption intensity ⁇ j of the other electric devices 100b and 100c received in step S1, and determines whether or not there are other electric devices 100b and 100c for which ⁇ i > ⁇ j .
  • the operation amount determination unit 106 determines that there are other electrical devices 100b, 100c for which ⁇ i > ⁇ j, it calculates the vertical vector u i (t) indicating the operation amount of each actuator k of the electrical device 100a using the consensus algorithm shown in the above equation (10).
  • the operation amount determination unit 106 determines the operation amount for each actuator k (step S9). Specifically, the operation amount determination unit 106 compares the operation amount u i,k (t) for each actuator k calculated by formula (10) with the upper limit value u i,k,Upper and the lower limit value u i,k,Lower of the operation amount for each actuator k acquired in step S7.
  • u i,k (t) is determined to be the upper limit value u i,k,Upper , u i,k (t) is determined to be the upper limit value u i,k,Upper , if the operation amount u i,k (t) is below the lower limit value u i,k,Lower , u i,k (t) is determined to be the lower limit value u i,k,Lower , otherwise, the calculated u i,k (t) is determined to be the operation amount to be used.
  • the operation amount determination unit 106 compares the power consumption frequency ⁇ i of the electrical device 100a with the power consumption frequency ⁇ j of the other electrical devices 100b, 100c, respectively, and if it determines that there are no other electrical devices 100b, 100c such that ⁇ i > ⁇ j, it determines the previous operation amount u i (t- ⁇ t) to be the operation amount to be used using the above formula (11) or the above formula (12).
  • 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.
  • the operation amount determination unit 106 determines whether or not the end condition of the operation amount determination process is satisfied (step S11).
  • the end condition is, for example, when the elapsed time of the operation amount determination process exceeds a preset time, when a signal instructing the user to stop the operation amount determination process is transmitted, etc.
  • the operation amount determination unit 106 determines that the end condition is not satisfied (step S11; No)
  • it returns to step S1 and repeatedly executes the operation amount determination process.
  • the operation amount determination unit 106 determines that the end condition is satisfied (step S11; Yes)
  • the power consumption frequency of each electric device 100 is controlled to gradually converge to the convergence value ⁇ convergence .
  • step S4 if the operation status determination unit 103 determines that the operation status of the electrical device 100a is stopped (step S4; Yes), the operation status determination unit 103 proceeds to step S11 and determines whether the termination condition is satisfied.
  • the electric device 100 calculates the operation amount of the control object equipped 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 devices 100. Then, the electric device 100 controls the operation of the actuator k of the control object based on the calculated operation amount. Therefore, power consumption can be reduced without separately installing a dedicated control device.
  • variable map determines the range of operation amounts for each operating state and power consumption level, it is possible to reduce the power consumption of the electrical device 100 without compromising the comfort and convenience of the user.
  • Electric device 100A determines the operation amount of actuator k included in electric device 100A by using a comfort index indicating the degree of comfort of the user in addition to the power consumption.
  • the electrical device 100A includes the communication unit 101, power consumption acquisition unit 102, operating state determination unit 103, power consumption frequency calculation unit 104, operation amount limit value acquisition unit 105, and operation control unit 107 included in the electrical device 100, and also includes a comfort frequency calculation unit 108 that calculates a comfort frequency of the user, and an operation amount determination unit 106a that determines the operation amount 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 amount determination unit 106 included in the electrical device 100.
  • the comfort index calculation unit 108 calculates a comfort index indicating the degree of comfort of the user.
  • the comfort index is a value on the same scale as the power consumption index, for example, a value in the range of 0 to 1.
  • the comfort index is calculated using a thermal environment index such as SET*.
  • the comfort index calculation unit 108 obtains an estimate of 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 obtained sensible temperature is 25 degrees, and reducing the comfort index by 0.1 for every 0.1 degree difference between the sensible temperature and 25 degrees. Also, if the electrical device 100A is a cooking appliance such as an induction cooking heater, the comfort index is calculated according to the difference between the set temperature specified by the user and the measured value of the thermostat. Furthermore, if the 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.
  • the operation amount determination unit 106a determines the operation amount of the actuator k based on the power consumption intensity and the comfort intensity. Specifically, the operation amount determination unit 106a calculates the operation amount at discrete time intervals ⁇ t.
  • a vector value x i (t) indicating the power consumption intensity ⁇ i and the comfort intensity ⁇ i of the electric device 100A at time t is expressed by the following formula (13).
  • the vector value x i (t) can be expressed as a linear time-invariant system as shown in the following equation (14).
  • u i (t) is a vertical vector indicating the operation amount of each actuator k of electric device 100A, and is expressed by equation (15).
  • u i (t) [u i, 0 , u i, 1 , u i, 2 ,..., u i, k-1 ] T formula (15)
  • Ai is a 2 ⁇ 1 vector
  • B is an n ⁇ 1 vector
  • ⁇ i be the power consumption intensity value of the electrical device 100A at time t
  • ⁇ j be the power consumption intensity value of another electrical device 100A communicatively connected to the electrical device 100A
  • ⁇ i be the comfort intensity value of the electrical device 100A
  • ⁇ j be the comfort intensity value of another electrical device 100A communicatively connected to the electrical device 100A.
  • the vector value x i (t) of the electrical device 100A at time t and the vector value x j (t) of the other electrical device 100A at time t are expressed by the following equations (16) and (17), respectively.
  • the operation amount determination unit 106a compares the power consumption intensity ⁇ i and comfort intensity ⁇ i of the electrical device 100A with the power consumption intensity ⁇ i and comfort intensity ⁇ j of other electrical devices 100A, respectively, and if it determines that there is another electrical device 100A for which ⁇ i > ⁇ j or ⁇ i ⁇ ⁇ j , it calculates the operation amount u i (t) of the actuator k using the following equation (18) which shows the consensus algorithm.
  • K is a 2xn vector.
  • the operation amount determination unit 106a determines that there is no other electrical device 100A for which ⁇ i > ⁇ j or ⁇ i ⁇ ⁇ j , it calculates the operation amount u i (t- ⁇ t) using the above formula (11) or the above formula (12) in the same manner as the operation amount determination unit 106.
  • FIG. 10 includes steps common to the flowchart shown in FIG. 8, the differences will be mainly described.
  • step S21 the communication unit 101 receives the power consumption level and comfort level of the other electrical device 100A from the other electrical device 100A at a preset time interval.
  • step S25 the power consumption index calculation unit 104 obtains a power consumption index by normalizing the power consumption to the range of 0 to 1, based on the operation state of the electrical device 100 determined by the operation state determination unit 103, in the same manner as in step S5.
  • the comfort index calculation unit 108 calculates a comfort index indicating the degree of comfort of the user. Specifically, the comfort index calculation unit 108 calculates the comfort index based on a comfort index calculation rule that is preset according to the type of electrical device 100A.
  • the power consumption level calculation unit 104 transmits the power consumption level and the comfort level calculated in step S5 to the other electrical device 100A via the communication unit 101 (step S26).
  • 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 compares the power consumption intensity ⁇ i and the comfort intensity ⁇ i of the electric device 100A calculated in step S25 with the power consumption intensity ⁇ i and the comfort intensity ⁇ j of another electric device 100A, respectively, and determines whether there is another electric device 100A for which ⁇ i > ⁇ j or ⁇ i ⁇ ⁇ j .
  • the operation amount determination unit 106a determines that there is another electrical device 100A where ⁇ i > ⁇ j or ⁇ i ⁇ ⁇ j , it calculates the vertical vector u i (t) indicating the operation amount of actuator k of the electrical device 100A using the consensus algorithm shown in the above equation (18).
  • electrical device 100A can determine the amount of operation by taking into account the user's comfort level in addition to the power consumption.
  • the power consumption reduction system 1 may further include an operation terminal that controls the convergence value ⁇ convergence of the power consumption frequency that converges by the agreement 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 notebook 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 electric device 100 in accordance with a well-known communication standard.
  • the operation terminal accepts a target value of the power consumption frequency and transmits the accepted target value to the electric device 100.
  • the electric device 100 that has received the target value of the power consumption frequency applies the power consumption frequency ⁇ j and the target value of the power consumption frequency received from the other electric device 100 to the agreement algorithm to calculate the operation amount of the actuator k of the electric device 100.
  • the power consumption reduction system 1 may further include a communication device that mediates communication between the electric appliances 100a, 100b, 100c, ....
  • the communication device has a predetermined communication interface and is connected to a wireless network established in the house H so as to be able to communicate with each other in a wired or wireless manner.
  • the communication device communicates with each of the electric appliances 100a, 100b, 100c, ... via the wireless network, and transmits, for example, the power consumption frequency of the electric appliance 100a to each of the other electric appliances 100b, 100c, ....
  • the power consumption reduction system 1 may further include a communication device that mediates communication between the electric appliances 100a, 100b, 100c, ....
  • the communication device has a predetermined communication interface and is connected to a wireless network established in the house H so as to be able to communicate with each other in a wired or wireless manner.
  • the communication device communicates with each of the electric appliances 100a, 100b, 100c, ... via the wireless network, and transmits, for example, the
  • the electric devices 100a, 100b, 100c, ... may calculate the operation amount and stop the process of controlling the operation of the actuator k by the calculated operation amount. Specifically, when it is determined that the difference between the maximum value and the minimum value of the power consumption frequency during a predetermined time T is equal to or greater than a predetermined threshold value, the electric devices 100a, 100b, 100c, ... stop the process. As illustrated in FIG. 11, the electric devices 100a, 100b, 100c, ... execute the same processes as steps S1 to S6 by the electric device 100. Next, in step S31, the power consumption frequency calculation units 104 of the electric devices 100a, 100b, 100c, ...
  • the power consumption level calculation unit 104 determines whether the difference between the maximum value ⁇ max and the minimum value ⁇ min of the power consumption level from the calculated time to the current time is equal to or greater than the threshold A (step S31). When the power consumption level calculation unit 104 determines that the difference between the maximum value ⁇ max and the minimum value ⁇ min is equal to or greater than the threshold A (step S31; Yes), the power consumption level calculation unit 104 proceeds to step S11 and determines whether or not the end condition is satisfied (step S11).
  • the power consumption level calculation unit 104 determines that the difference between the maximum value ⁇ max and the minimum value ⁇ min is less than the threshold A (step S31; No), the power consumption level calculation unit 104 executes the same processes as those of steps S7 to S11 by the electrical device 100.
  • the electric appliances 100a, 100b, 100c, ... may calculate the difference between the maximum and minimum comfort indexes in addition to the power consumption index, and may stop the process when either the power consumption index or the difference between the maximum and minimum comfort indexes is equal to or greater than a predetermined threshold.
  • the determination process in step S31 may be performed after a predetermined time T0 has elapsed from the time when the operation amount determination process was started.
  • the electric appliances 100a, 100b, 100c, ... may end the operation amount determination process when it is determined in step S31 that the difference between the maximum value ⁇ max and the minimum value ⁇ min is equal to or greater than the threshold A (step S31; Yes).
  • the electric appliances 100b, 100c, ... other than the electric appliance 100a which has a large fluctuation in the power consumption index, continue the operation amount determination process, and it is expected that the operation amount determination process will be more likely to converge to the convergence value ⁇ convergence .
  • the electric device 100a that has completed the operation amount determination process may operate as a communication device that mediates communication between the other electric devices 100b, 100c, ....
  • the power consumption level calculation unit 104 is an example of a determination unit.
  • the house H has been described as an example of an electricity consumption area.
  • the electricity consumption area is not limited to an ordinary house 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 in which a plurality of electrical devices 100 that receive electricity from the commercial power grid 300 and consume electricity are installed.
  • the electrical devices 100a, 100b, 100c, ... have been described as transmitting and receiving power consumption levels in both directions, but this is not limited thereto, and each combination of electrical devices 100 may communicate either bidirectionally or unidirectionally.
  • the manipulated variable determiner 106 calculates the manipulated variable u i (t) of each actuator k by the consensus algorithm shown in equation (10), but this is not limited to the above.
  • the manipulated variable determiner 106 may calculate the manipulated variable u i (t) of each actuator k by the following equation (19).
  • each C i,m is a preset constant, and a control input amount is set to suppress low power consumption of each actuator k of the electric device 100. Note that, for example, by preparing different combinations of C i,m for each difference between the power consumption frequency of the own device and the power consumption frequency of the other electric device 100, each C i,m may be dynamically changed according to the difference between the power consumption frequency of the own device and the power consumption frequency of the other electric device 100.
  • the operation amount determination unit 106 may calculate the vertical vector ui(t) indicating the operation amount of each actuator k of the electrical device 100a using the above formula (19) instead of the agreement algorithm shown in the above formula (10).
  • each function of the electrical device 100 can be realized using a normal computer system.
  • a program for realizing each function of the electrical device 100 can be stored and distributed 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 a computer that can realize each of the above-mentioned functions can be configured by installing this program on a computer.
  • 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)
  • a power consumption reduction system including a plurality of electrical devices that consume power includes: a power consumption acquiring 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 an operation state of the electric 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 a power consumption level of the other electrical device; 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 level calculated by the power consumption level calculation unit and the power consumption level received by the receiving unit when the power consumption level calculated by the power consumption level calculation unit is greater than the power consumption level received by the receiving unit; an operation control unit that controls an operation of the controlled object based on the operation amount calculated by the operation amount calculation unit; A power consumption reduction system comprising: (Appendix 2) The operation amount calculation unit calculates the operation amount by a preset agreement
  • the electrical device includes: a storage unit configured to store operation amount range information that defines an upper limit value and a lower limit value of the operation amount of the control target for each operation state of the electric device and for each of the power consumption intensity values calculated by the power consumption intensity calculation unit, the operation amount calculation unit determines, when the calculated operation amount exceeds the upper limit value, that the upper limit value is the operation amount of the controlled object, and determines, when the calculated operation amount is below the lower limit value, that the lower limit value is the operation amount of the controlled object.
  • the power consumption reduction system according to claim 1 or 2.
  • (Appendix 4) an operation terminal that outputs the target value of the power consumption level 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 agreement algorithm based on a difference between the power consumption intensity calculated by the power consumption intensity calculation unit and the power consumption intensity received by the receiving unit, and a difference between the power consumption intensity calculated by the power consumption intensity calculation unit and the target value; 4.
  • a power consumption reduction system according to any one of claims 1 to 3.
  • 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 a power consumption level of the other electrical device via the communication device. 5.
  • a power consumption reduction system according to any one of claims 1 to 4.
  • the electrical device includes: A comfort index calculation unit is further provided for calculating a comfort index which is an index relating to the comfort of the user,
  • the transmission unit further transmits the comfort index calculated by the comfort index calculation unit to the other electrical appliances,
  • 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 agreement algorithm based on a difference between the power consumption intensity calculated by the power consumption intensity calculation unit and the power consumption intensity received by the receiving unit, and a difference between the comfort intensity calculated by the comfort intensity calculation unit and the comfort intensity received by the receiving unit; 6.
  • a power consumption reduction system according to any one of claims 1 to 5.
  • the electrical device 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 a 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. 7.
  • a power consumption reduction system according to any one of claims 1 to 6.
  • An electrical device that consumes power a power consumption acquiring 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 an operation state of the electric 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 a power consumption level of the other electrical device; 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 level calculated by the power consumption level calculation unit and the power consumption level received by the receiving unit when the power consumption level calculated by the power consumption level calculation unit is greater than the power consumption level received by the receiving unit; an operation control unit that controls an operation of the controlled object based on the operation amount calculated by the operation amount calculation unit; An electrical device comprising: (Appendix 9) Obtaining power consumption of an electrical device that consumes power; Calculating a power consumption frequency by normalizing the acquired power consumption based on an operation state of the
  • 1 Power consumption reduction system 100, 100a, 100b, 100c, 100A Electrical equipment, 101 Communication unit, 102 Power consumption acquisition unit, 103 Operation status determination unit, 104 Power consumption degree calculation unit, 105 Operation amount limit value acquisition unit, 106, 106a Operation amount determination unit, 107 Operation control unit, 108 Comfort degree calculation unit, 200 Network, 300 Commercial power system, 400 Distribution board, 11 Processor, 12 Memory, 13 Communication unit, 99 Internal bus.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

L'invention concerne un système de réduction de consommation d'énergie, un équipement électrique, un procédé de réduction de consommation d'énergie et un programme permettant de gérer de manière appropriée la consommation d'énergie sans installer un dispositif de commande dédié. Un système de réduction de consommation d'énergie (1) est pourvu d'une pluralité d'éléments d'équipement électrique (100). L'équipement électrique (100) comprend : une unité d'acquisition de consommation d'énergie qui acquiert la consommation d'énergie de l'équipement électrique (100) ; une unité de calcul de fréquence de consommation d'énergie qui calcule une fréquence de consommation d'énergie sur la base de l'état de fonctionnement de l'équipement électrique (100) ; une unité de transmission qui transmet la fréquence de consommation d'énergie calculée à un autre équipement électrique (100) ; une unité de réception qui reçoit la fréquence de consommation d'énergie de l'autre équipement électrique (100) ; une unité de calcul de quantité de fonctionnement qui calcule une quantité de fonctionnement d'un objet à commander sur la base de la différence entre la fréquence de consommation d'énergie calculée et la fréquence de consommation d'énergie reçue lorsque la fréquence de consommation d'énergie calculée est supérieure à la fréquence de consommation d'énergie reçue ; et une unité de commande de fonctionnement qui commande le fonctionnement de l'objet à commander.
PCT/JP2024/024623 2023-07-11 2024-07-08 Système de réduction de consommation d'énergie, équipement électrique, procédé de réduction de consommation d'énergie et programme Pending WO2025013827A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11120473A (ja) * 1997-10-09 1999-04-30 Matsushita Electric Ind Co Ltd 機器使用実態診断システム
JP3602825B2 (ja) * 2000-04-12 2004-12-15 財団法人電力中央研究所 電気機器の消費電力推定システム並びに方法及びこれを利用した異常警告システム
JP2016158384A (ja) * 2015-02-24 2016-09-01 シャープ株式会社 制御装置、通信システム、および消費電力制御方法
US20170017295A1 (en) * 2015-07-16 2017-01-19 T-Mobile Usa, Inc. User device power consumption monitoring and analysis
JP2017022895A (ja) * 2015-07-13 2017-01-26 三菱電機株式会社 負荷推定装置及び負荷推定方法
US20170235290A1 (en) * 2014-10-14 2017-08-17 Yotta Green Ltd Smart home system and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11120473A (ja) * 1997-10-09 1999-04-30 Matsushita Electric Ind Co Ltd 機器使用実態診断システム
JP3602825B2 (ja) * 2000-04-12 2004-12-15 財団法人電力中央研究所 電気機器の消費電力推定システム並びに方法及びこれを利用した異常警告システム
US20170235290A1 (en) * 2014-10-14 2017-08-17 Yotta Green Ltd Smart home system and method
JP2016158384A (ja) * 2015-02-24 2016-09-01 シャープ株式会社 制御装置、通信システム、および消費電力制御方法
JP2017022895A (ja) * 2015-07-13 2017-01-26 三菱電機株式会社 負荷推定装置及び負荷推定方法
US20170017295A1 (en) * 2015-07-16 2017-01-19 T-Mobile Usa, Inc. User device power consumption monitoring and analysis

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