WO2018034003A1

WO2018034003A1 - Electric device, electronic control system, electronic control method, and program

Info

Publication number: WO2018034003A1
Application number: PCT/JP2016/074257
Authority: WO
Inventors: 遠藤　聡; 利康樋熊
Original assignee: 三菱電機株式会社
Priority date: 2016-08-19
Filing date: 2016-08-19
Publication date: 2018-02-22
Also published as: JPWO2018034003A1; JP6625223B2

Abstract

An electric device (30) is installed in a residence and is connected to a transmission device (20). The electric device (30) is provided with: a reception unit (301) that repeatedly receives data which is broadcasted from the transmission device (20) and which indicates the ratio of the difference between the measured value of total power and the target value of the total power with respect to the reference value of the total power supplied to the residence via a power line; a measurement unit (304) that outputs a measured value of device power obtained by measuring the device power consumed by the electric device (30); and a control unit (305) that reduces the magnitude of the difference by controlling the device power through changing of the operation state of the electric device (30) to a predetermined state corresponding to the ratio and the measured value of the device power.

Description

ELECTRIC DEVICE, POWER CONTROL SYSTEM, POWER CONTROL METHOD, AND PROGRAM

The present invention relates to an electric device, a power control system, a power control method, and a program.

Generally, the electric power consumed in a house where various electric devices are installed varies greatly depending on the use of the electric devices. However, it is known that concentration of time during which power is consumed is not preferable from the viewpoint of the efficiency of power supply and demand. In addition, when the time during which power is consumed is concentrated, the electricity bill of an electric power company that supplies power to the house may increase. Therefore, various techniques for controlling electric power have been proposed (see, for example, Patent Documents 1 and 2).

Patent Document 1 describes a demand monitoring control device that suppresses the power consumption of a target device within an upper limit value. This apparatus determines the processing content of the power consumption control of the target device using the first threshold value and the second threshold value at each time point within the demand time period. Patent Document 2 describes a power management method in which a plurality of electrical devices write power consumption in a data structure, share information by circulating this data structure, and manage the amount of power. ing.

JP 2007-195392 A JP 2012-165549 A

In the demand monitoring and control apparatus described in Patent Document 1, when the number of target devices increases, the calculation load increases because the threshold value is calculated and the processing content is determined for each target device. For this reason, there is a possibility that the demand monitoring control apparatus needs to be configured using high-performance hardware elements. On the other hand, the power management method described in Patent Document 2 eliminates the need for a device for managing power. However, it is necessary for all the electric devices to share a rule for circulating the data structure in advance, and there is a possibility that preparation for executing the power management method may be complicated.

The present invention has been made in view of the above circumstances, and an object thereof is to control electric power supplied to a house in which an electric device is installed with a simple configuration.

In order to achieve the above object, an electrical device of the present invention is an electrical device that is installed in a house and connected to a transmission device, and a reference value of the total power supplied to the house via a power line and the total power Data indicating the ratio of the difference between the measured value and the target value of the total power, the receiving means for repeatedly receiving data broadcast from the transmitting device, and the equipment power that is the power consumed by the electrical equipment. Measuring device that measures and outputs the measured value of device power, and controls the device power by changing the operating state of the electrical device to a predetermined state corresponding to the ratio and the measured value of device power Control means for reducing the magnitude of the difference.

According to the present invention, the operating state of the electrical device is changed to a predetermined state corresponding to the ratio between the reference value of the total power, the difference between the measured value and the target value, and the device power. The difference between the measured value of the total power and the target value becomes smaller. For this reason, the information that the electric device should acquire from the outside is limited to data indicating the ratio, and high load calculation is not required outside the electric device. Further, there is no need for a rule that an electric device should share with other devices in advance. Therefore, the electric power supplied to the house where the electric equipment is installed can be controlled with a simple configuration.

The figure which shows the structure of the electric power control system which concerns on Embodiment 1. Diagram showing the configuration of the measuring device Diagram showing the configuration of the transmitter The figure which shows the structure of the electric equipment which concerns on Embodiment 1. FIG. 3 is a flowchart showing power adjustment processing according to the first embodiment. FIG. 1 is a first diagram illustrating an example of table data according to the first embodiment. FIG. 2 is a second diagram illustrating an example of table data according to the first embodiment. FIG. 3 is a third diagram illustrating an example of table data according to the first embodiment. Figure showing transition of deviation power The figure which shows the structure of the electric equipment which concerns on Embodiment 2. Flow chart showing power adjustment processing according to Embodiment 2 The figure which shows the example of the table data which concerns on Embodiment 3. The figure which shows the transition of the apparatus electric power which concerns on Embodiment 4. The figure which shows the example of the table data which matches ratio, apparatus electric power, and an operating state

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 shows a configuration of power control system 100 according to the first embodiment. The power control system 100 is a HEMS (Home Energy Management System) that controls electric power supplied to the house 400 from the power source 70 and consumed in the house 400. The power control system 100 includes a measuring device 10 that measures power consumed by being supplied from the power source 70 to the house 400, and a transmission device 20 that transmits data obtained by processing the measurement result of the measuring device 10 to devices in the house 400. And a plurality of

electrical devices

31, 32, 33 installed in the house 400 and connected to the transmission device 20. In FIG. 1, a solid line connected to the transmission device 20 represents a communication line, and a thick solid line represents a power line.

The measuring device 10 and the transmitting device 20 are connected via a wireless or wired home network or a dedicated line. Further, the transmission device 20 and the

electric devices

31, 32, 33 are connected via a wireless or wired home network. The measurement device 10, the transmission device 20, and the

electric devices

31, 32, and 33 may be connected to each other via the same LAN (Local Area Network).

The power source 70 is, for example, a commercial power source operated by an electric power company, a distributed power source installed in the house 400, or a combination of a commercial power source and a distributed power source. The power source 70 is connected to the distribution board 401 of the house 400 via the power line and supplies power to the house 400. In addition, the distribution board 401 is connected to the

electric devices

31, 32, and 33 via the power line, and supplies the electric power supplied from the power source 70 to the

electric devices

31, 32, and 33.

The measuring device 10 measures the main power supplied from the power source 70 to the house 400 using a current transformer (CT) 10a attached to the power line between the power source 70 and the distribution board 401. To do. Hereinafter, this main power is referred to as total power. The measurement device 10 repeatedly notifies the transmission device 20 of the measurement result. The notification of the measurement result according to the present embodiment is periodically executed, and the cycle is, for example, 1 minute or 5 minutes.

FIG. 2 shows the configuration of the measuring apparatus 10. As illustrated in FIG. 2, the measurement device 10 stores a measurement unit 11 that measures the total power by receiving a signal output from the current transformer 10 a and a measurement value that indicates a measurement result of the measurement unit 11. And a notification unit 13 that periodically notifies the transmission device 20 of the measurement values accumulated in the storage unit 12.

The measuring unit 11 includes a conversion circuit that converts a current value indicated by a signal output from the current transformer 10a into a power value. The storage unit 12 includes an EEPROM (Electrically Erasable Programmable Read-Only Memory) and a non-volatile memory represented by a flash memory. The notification unit 13 includes a communication interface circuit for communicating with the transmission device 20. Note that the hardware configurations of the measurement unit 11, the storage unit 12, and the notification unit 13 are not limited to this, and are arbitrary.

Returning to FIG. 1, when the measurement value is notified from the measurement device 10, the transmission device 20 executes a calculation using the measurement value and repeatedly broadcasts data indicating the calculation result to the

electric devices

31, 32, 33. A communication device for transmission. The transmission device 20 may be built in the measurement device 10. In addition, the transmission device 20 according to the present embodiment does not individually control the

electric devices

31, 32, and 33. However, the transmission device 20 manages the

electric devices

31, 32, and 33 so as to manage the main devices of the HEMS. It may be a home controller that performs various functions.

FIG. 3 shows the configuration of the transmission device 20. As shown in FIG. 3, the transmission device 20 is based on a measurement device communication unit 21 for communicating with the measurement device 10, a storage unit 22 that stores data related to computation, and data stored in the storage unit 22. It has the calculating part 23 which performs a calculation and stores a calculation result in the memory | storage part 22, and the apparatus communication part 24 for communicating with the electric equipment 30. FIG.

The measuring device communication unit 21 includes a communication interface circuit. The measurement device communication unit 21 acquires the measurement value of the total power repeatedly transmitted from the measurement device 10 and sequentially stores the measurement value in the storage unit 22.

The storage unit 22 includes a nonvolatile memory. The storage unit 22 stores data used by the calculation unit 23 in addition to the program 29 executed by the calculation unit 23, supplies the data to the calculation unit 23, and stores data supplied from the calculation unit 23. The data used by the calculation unit 23 includes the target value and reference value of the total power stored in the storage unit 22 in advance. The target value of the total power may be a value calculated by the transmission device 20 as a home controller, a value acquired by the transmission device 20 from an external device, or an administrator of the power control system 100 May be a value set in the transmission device 20. The reference value of the total power is equal to a value indicating the power that can be reduced among the total power of the house 400, the maximum value of the total power of the house 400, or the breaker capacity of the distribution board 401.

The calculation unit 23 includes an MPU (Micro Processing Unit) and a RAM (Random Access Memory). The computing unit 23 executes various processes by executing a program 29 stored in the storage unit 22. Specifically, the calculation unit 23 reads the measured value and target value of the total power from the storage unit 22, and subtracts the measured value from the read target value, thereby calculating the difference between the measured value of the total power and the target value. A certain deviation power is calculated. Then, the calculation unit 23 stores the calculated deviation power in the storage unit 22. The deviation power is calculated every time a new measurement value is stored in the storage unit 22.

The device communication unit 24 includes a communication interface circuit. The device communication unit 24 reads the reference value of the total power and the deviation power newly stored in the storage unit 22 from the storage unit 22, and transmits the data indicating these reference value and deviation power by broadcast communication. It repeatedly transmits to the

equipment

31, 32, 33. The transmission of data by the device communication unit 24 is executed each time new deviation power is stored in the storage unit 22.

Referring back to FIG. 1, the

electric devices

31, 32, and 33 are home appliances that are installed in a house and operate by consuming electric power. The electrical device 31 according to the present embodiment is an air conditioning device, the electrical device 32 is a lighting fixture, and the electrical device 33 is an IH (Induction Heating) cooking device. Hereinafter, the generic name of the

electric devices

31, 32, and 33 is referred to as an electric device 30. In addition, the model of the electric equipment 30 is arbitrary, for example, the electric equipment 30 may be a floor heating facility, a refrigerator, or a television receiver. Further, the number of electrical devices 30 is not limited to three, and may be less than three or more than three.

FIG. 4 shows the configuration of the electrical device 30. As illustrated in FIG. 4, the electrical device 30 includes a reception unit 301 that receives data from the transmission device 20, a storage unit 302 that stores various data, and a power source that generates power for operating the electrical device 30. Unit 303, measurement unit 304 that measures device power that is the power consumed by electrical device 30, control unit 305 that controls each component of electrical device 30, and operation unit for exerting the functions of electrical device 30 306.

The receiving unit 301 includes a communication interface circuit. The receiving unit 301 repeatedly receives data broadcast from the transmitting device. The receiving unit 301 stores the received data in the storage unit 302 sequentially. Thus, every time the transmission device 20 broadcasts data, the reference value and the deviation power of the total power included in this data are stored in the storage unit 302.

The storage unit 302 includes a nonvolatile memory. In addition to the program 309 executed by the control unit 305, the storage unit 302 stores data used by the control unit 305, supplies the data to the control unit 305, and stores data supplied from the control unit 305. The data stored by the storage unit 302 includes table data for changing the operating state of the electrical device 30. Details of the table data will be described later.

The power supply unit 303 includes, for example, an AC / DC conversion circuit and a voltage conversion circuit. The power supply unit 303 generates power in a format suitable for the operation of the electric device 30 from the power supplied from the distribution board 401. The power generated by the power supply unit 303 is consumed by each component of the electrical device 30, but FIG. 4 shows that the power from the power supply unit 303 is supplied to the operation unit 306 via the power line. .

The measurement unit 304 includes, for example, a current sensor and a voltage sensor. The measuring unit 304 repeatedly measures the device power consumed by the electrical device 30 and outputs a measured value of the device power. The device power measurement according to the present embodiment is periodically executed, and the cycle thereof is, for example, 1 second. The device power measurement values output from the measurement unit 304 are sequentially stored in the storage unit 302.

The control unit 305 includes an MPU and a RAM. The control unit 305 executes various processes by executing a program 309 stored in the storage unit 302. Specifically, the control unit 305 reads out the deviation power, the reference value of total power, and the measured value of device power from the storage unit 302, and repeatedly calculates target adjustment power from these values. The target adjustment power is a target value of power that should be adjusted by the electrical device 30 itself. For example, a target adjusted power of −0.1 kW indicates that the electrical device 30 should reduce the device power by 0.1 kW. And the control part 305 performs electric power adjustment control so that target adjustment electric power is achieved. The power adjustment control is to change the operating state of the electrical device 30 by controlling the operation unit 306. For example, if the electrical device 30 is an air conditioner, this operating state includes a temperature set value.

The operation unit 306 is a member for the electric device 30 to function as a home appliance. For example, the operation unit 306 of the electric device 31 that is an air conditioner includes a blower, a louver, and a pump and a valve provided in the refrigerant pipe. The operation unit 306 of the electrical device 32 that is a lighting fixture includes a light emitting element represented by an LED (Light Emitting Diode). The operation unit 306 of the electric device 33 that is an IH cooking device includes an inverter.

Subsequently, an example of the power adjustment process executed by the electrical device 30 will be described with reference to FIGS. The power adjustment process shown in FIG. 5 is executed when the electric device 30 is turned on.

In the power adjustment process, the electrical device 30 first determines whether data has been received from the transmission device 20 (step S1). Specifically, the control unit 305 determines whether data newly received by the receiving unit 301 is stored in the storage unit 302.

When it is determined that data is not received from the transmission device 20 (step S1; No), the electrical device 30 repeats the determination of step S1 and waits until new data is received. On the other hand, when it determines with having received data from the transmitter 20 (step S1; Yes), the electric equipment 30 calculates target adjustment electric power from deviation electric power, the reference value of total electric power, and the measured value of apparatus electric power (step). S2). Specifically, the control unit 305 reads the latest deviation power, the total power reference value, and the device power measurement value stored in the storage unit 302, and calculates the target adjustment power according to the following arithmetic expression. .

T = P · D / R (1)

T in the above formula (1) indicates the target adjustment power, P indicates the deviation power, D indicates the measured value of the device power, and R indicates the reference value of the total power.

In the above formula (1), P and R are both values included in the data transmitted from the transmission device 20, and the ratio P / R indicates the rate at which the total power deviates from the reference value. . By multiplying D equal to the current value of the device power by the ratio P / R, the target adjustment power T is calculated as the power deviating from the target value of the power consumption of the electrical device 30.

Further, the ratio D / R represents the ratio of the power consumption of the electrical device 30 to the reference value of the total power. The above formula (1) can be said to calculate the target adjustment power by multiplying the deviation power P by the ratio D / R.

Next, the electrical device 30 controls the device power by changing the operating state of the electrical device 30 to a predetermined state corresponding to the target adjustment power (step S3). Specifically, the control unit 305 reads table data in which the target adjustment power and the operation state are associated from the storage unit 302, and sets the operation state associated with the target adjustment power calculated in step S2 to the electric device. Set to 30. Thereby, the control part 305 can control apparatus electric power and can make the difference of the measured value and total value of total electric power small. The table data may be stored in advance in the storage unit 302 at the time of shipment of the electric device 30 from the factory, or may be set in the electric device 30 by the transmission device 20 that is a home controller.

FIG. 6 shows table data of the electrical equipment 31 that is an air conditioning equipment. As shown in FIG. 6, in this table data, the target adjustment power and the changed operating state are associated with each other, and the operating state includes a power supply state, a set temperature, and a power saving mode. For example, it is assumed that the current electrical device 31 performs a cooling operation, the set temperature is set to 25 ° C., and the power saving mode is set to “off”. In this case, when the target adjustment power is calculated to be −0.4 kW, the electric device 31 sets the set temperature to 26 ° C. (= 25 + 1) and sets the power saving mode to “weak”. 31 equipment power is reduced by about 0.4 kW. When the target adjustment power is calculated to be −1.0 kW, the electrical device 31 greatly reduces the device power by setting the power supply state to OFF. When the target adjustment power is calculated as +0.4 kW, the electric device 31 increases the device power by setting the set temperature to 24 ° C. (= 24−1).

FIG. 7 shows table data of the electrical device 32 that is a lighting fixture. After calculating the target adjustment power, the electrical device 32 refers to the table data shown in FIG. 7 and changes the operating state to a state corresponding to the calculated target adjustment power. Further, FIG. 8 shows table data of the electric device 33 that is an IH cooking device. When calculating the target adjustment power, the electrical device 33 refers to the table data shown in FIG. 8 and changes the operating state to a state corresponding to the calculated target adjustment power.

Returning to FIG. 5, following step S <b> 3, the electrical device 30 repeats the processing after step S <b> 1. Thereby, every time data is received from the transmission device 20, the operating state is changed to control the device power.

As described above, the electrical device 30 repeatedly executes the power adjustment process. Thereby, the electric equipment 30 calculates the target adjustment electric power which self should adjust among deviation electric power, and controls apparatus electric power so that this target adjustment electric power is achieved. When each of the plurality of electrical devices 30 controls the device power, the total power supplied to the house 400 in which the plurality of electrical devices 30 are installed approaches the target value.

FIG. 9 schematically shows the transition of the deviation power when the power adjustment process is repeatedly executed. As shown in FIG. 9, when each electric device 30 executes the power adjustment process, the deviation power approaches zero after a plurality of stages where the magnitude decreases. That is, the measured value of total power approaches the target value.

The reference value of the total power according to the present embodiment is only a guide indicating the scale of the total power, and the target adjustment power calculated using this reference value is equal to the measured value of the total power equal to the target value. Therefore, the electric power to be achieved by each electrical device 30 is not always accurately indicated. For this reason, as shown in FIG. 9, the deviation power is not always zero by one power adjustment process. However, although the target adjustment power calculated based on the reference value includes an error, the deviation power converges to zero by repeating the control of the device power according to the target adjustment power.

In addition, the information that the electric device 30 should acquire from the outside is limited to data indicating the deviation power and the reference value of the total power, and it is not necessary to calculate a high load outside the electric device 30. Moreover, the rule which the electric equipment 30 should share beforehand with another apparatus is not required. Therefore, the electric power supplied to the house 400 in which the electric device 30 is installed can be controlled with a simple configuration.

The electrical device 30 may execute the power adjustment process only when the deviation power is out of the predetermined range. FIG. 9 illustrates the lower limit value TH2 and the upper limit value TH1 of this range.

The calculation of the target adjustment power by the electric device 30 is performed by multiplying the ratio P / R and the measured value D of the device power. Since the ratio P / R is obtained by simply dividing the deviation power P by the reference value R of the total power, the electric device 30 uses the ratio P to indicate data indicating the deviation power P and the reference value R of the total power. Received as data indicating / R. However, the data transmitted from the transmission device 20 to the electrical device 30 may be data indicating only the ratio P / R, not data indicating the deviation power P and the reference value R of the total power. . That is, the transmission device may perform division. When only data indicating only the ratio P / R is distributed, the communication capacity can be reduced.

Embodiment 2. FIG.
Next, the second embodiment will be described focusing on the differences from the first embodiment. In addition, about the structure which is the same as that of the said Embodiment 1, or equivalent, while using an equivalent code | symbol, the description is abbreviate | omitted or simplified. As shown in FIG. 10, the electrical device 30 according to the present embodiment includes a reception unit 307 that receives designation regarding execution of power adjustment control, and a detection unit that detects the number of people in the space where the electrical device 30 is installed. 308 is different from that according to the first embodiment.

The reception unit 307 includes, for example, a user interface typified by a touch screen or a communication interface circuit for communicating with a user interface terminal external to the electrical device 30. The accepting unit 307 executes the power adjustment control by the control unit 305 when a predetermined execution condition is satisfied, executes regardless of the execution condition, and does not execute regardless of the execution condition. The specification of is accepted. Then, the accepting unit 307 stores data indicating the designated content in the storage unit 302. Then, the control unit 305 reads the specified content received by the receiving unit 307 from the storage unit 302, and determines the presence or absence of power adjustment control according to the specified content.

However, the execution condition is a condition that is satisfied when the magnitude of the deviation power exceeds a predetermined threshold. This threshold value may be stored in advance in the storage unit 302 when the electrical device 30 is shipped from the factory, may be set by the transmission device 20 that is a home controller, or may be received by the reception unit 307.

The detection unit 308 is configured to include, for example, an infrared sensor or an ultrasonic sensor, and detects the number of people present in the room where the electrical device 30 is installed using the sensor. The detection unit 308 stores data indicating the number of detected people in the storage unit 302.

The control unit 305 reads the detection result of the detection unit 308 from the storage unit 302, and when the number of detected people is larger than a predetermined threshold, the reception unit 301 receives the preceding data and the subsequent data in order. The target adjustment power is calculated from any one of the preceding data and the subsequent data to change the operating state of the electric device 30, and the electric device is calculated without calculating the target adjustment power from the other data. The operating state of 30 is not changed. That is, when there are many people in the space where the electrical device 30 is installed, the control unit 305 executes the power adjustment control by thinning out the number of times.

Subsequently, power adjustment processing according to the present embodiment will be described with reference to FIG. As shown in FIG. 11, in the power adjustment process, the electrical device 30 first determines whether or not a designation regarding control execution has been received (step S <b> 21). Specifically, the control unit 305 determines whether the designated content received by the receiving unit 307 is stored in the storage unit 302.

If it is determined that the designation relating to the control execution has not been accepted (step S21; No), the electrical device 30 repeatedly executes the judgment in step S21 and waits for the designation relating to the control execution. On the other hand, when it determines with having received the designation | designated regarding control execution (step S21; Yes), the electric equipment 30 determines whether control execution is possible according to the received designation | designated (step S22). Specifically, the control unit 305 determines whether execution with a condition is specified and whether the condition is satisfied or execution is specified regardless of the condition.

When it is determined that the control execution is not possible (step S22; No), the electric device 30 repeats the processes after step S21. Thereby, the electric device 30 stands by until control execution becomes possible. On the other hand, when it is determined that the control can be executed (step S22; Yes), the electric device 30 executes steps S1 to S3 equivalent to those according to the first embodiment (see FIG. 5).

Subsequent to step S3, the electrical device 30 determines whether new data has been received from the transmission device 20 (step S24). This step S24 is the same procedure as step S1, but in step S24, the electrical device 30 determines whether new data has been received after the data determined to be received in step S1.

When it is determined that new data has not been received (step S24; No), the electric device 30 repeatedly executes the determination in step S24 and waits for reception of new data. On the other hand, when it determines with having received new data (step S24; Yes), the electric equipment 30 determines whether the number of people is larger than a threshold value (step S25). Specifically, the control unit 305 determines whether the number of people last detected by the detection unit 308 is greater than three.

If it is determined that the number of persons is greater than the threshold (step S25; Yes), the electrical device 30 repeats the processes after step S1. As a result, the electrical device 30 waits for further data reception without executing the power adjustment control based on the data determined to be received in step S24. On the other hand, when it determines with the number of people not being larger than a threshold value (step S25; No), the electric equipment 30 calculates target adjustment electric power (step S26). This step S26 is the same procedure as step S2, but in step S26, the electric device 30 calculates the target adjustment power based on the data determined to be received in step S24.

Next, the electrical device 30 controls the device power by changing the operating state of the electrical device 30 (step S27). This step S27 is the same procedure as step S3. However, in step S27, the electrical device 30 changes the operating state to a state corresponding to the target adjusted power calculated in step S26.

Thereafter, the electrical device 30 repeats the processing after step S1. In addition, following step S27, the electric device 30 may repeat the processing after step S21 to confirm the designated content again.

As described above, the electrical device 30 according to the present embodiment receives a specification related to control execution, and determines the presence or absence of power adjustment control according to the received specification. Thereby, the user can specify not to execute the power adjustment control for the specific electrical device 30. For example, if the power adjustment control is executed during use of the electric device 33 that is an IH cooking device, it is not desirable because it causes a problem in cooking. In such a case, the user can specify that control of the electric device 33 cannot be executed, and can maintain the output thermal power of the electric device 33.

In addition, the electric device 30 thins out and executes the power adjustment control when the number of people in the space where the electric device 30 is installed is larger than the threshold. Thereby, it can avoid that the comfort which the electric equipment 31 which is an air conditioner gives to a user falls too much, for example.

Embodiment 3 FIG.
Next, the third embodiment will be described focusing on the differences from the first embodiment. In addition, about the structure which is the same as that of the said Embodiment 1, or equivalent, while using an equivalent code | symbol, the description is abbreviate | omitted or simplified. The electric device 30 according to the present embodiment is different from that according to the first embodiment in that the operating state is changed to a different state according to the amount of change in the deviation power.

When the control unit 305 according to the present embodiment executes power adjustment control based on the preceding data received from the transmission device 20, the deviation indicated by the subsequent data received after the preceding data from the deviation power indicated by the preceding data. Monitor the amount of change to power. And if the magnitude | size of this variation | change_quantity is larger than the predetermined threshold value, the control part 305 will change an operation state with reference to the table data shown, for example in FIG. On the other hand, if the magnitude of the change amount is smaller than the threshold value, the control unit 305 determines that the device power control is insufficient, and changes the operating state with reference to, for example, the table data illustrated in FIG.

The table data shown in FIG. 12 is stored in the electric device 31 that is an air conditioner, similar to that shown in FIG. 6, but the operating state corresponding to the target adjusted power is shown in FIG. Is different. Specifically, in FIG. 12, the target adjustment power and the operating state are associated with each other so that the amount of change in device power becomes larger.

As described above, when the control unit 305 determines that the change amount of the deviation power is smaller than the threshold and insufficient even if the power adjustment control is once executed, the control unit 305 performs the device power consumption more than when the change amount is larger than the threshold. The power adjustment control is executed by increasing the amount of change. That is, when it is determined that the current power adjustment control has a small influence on the total power, the electrical device 30 can increase the influence on the total power and achieve the target value of the total power faster.

Embodiment 4 FIG.
Next, the fourth embodiment will be described focusing on the differences from the first embodiment. In addition, about the structure which is the same as that of the said Embodiment 1, or equivalent, while using an equivalent code | symbol, the description is abbreviate | omitted or simplified. When the electric appliance 30 according to the present embodiment executes the power adjustment control, the electric device 30 waits for the standby time and executes the next power adjustment control based on newly received data after the standby time has elapsed. This differs from that according to the first embodiment.

The standby time is a time including a time from when the operating state is set until the device power actually changes and stabilizes, and the length thereof is determined in advance in association with the changed operating state.

FIG. 13 schematically shows the transition of the device power according to the present embodiment. At the time of zero minutes in FIG. 13, when data is received, power adjustment control is executed, and the device power gradually changes. While the device power changes, the electrical device 30 enters a standby state and does not execute power adjustment control even if it receives data at the time of 5 minutes. Then, when new data is received at 10 minutes after the standby time has elapsed, the next power adjustment control is executed based on the new data.

As described above, when executing the power adjustment control, the electric device 30 waits for a predetermined time and executes the next power adjustment control after the standby time has elapsed. As represented by the activation of the air conditioner, the effect of increasing or decreasing the power consumption may not appear in a short time depending on the contents of the power adjustment control. However, the electric device 30 according to the present embodiment can execute appropriate power adjustment control in consideration of such a temporal transition.

As mentioned above, although embodiment of this invention was described, this invention is not limited by the said embodiment.

For example, the table data is data that associates the target adjustment power with the operating state. Since the target adjustment power T is obtained by simply multiplying the device power D by the ratio P / R between the deviation power P and the reference value R of the total power, the table data substantially includes the ratio P / R. It is equal to data associating R, device power D, and operating state. Therefore, for example, the table data may be configured as shown in FIG. In the example shown in FIG. 14, the changed operating state is shown in association with the ratio P / R and the device power D. If the table data shown in FIG. 14 is used, the calculation process for calculating the target adjustment power can be omitted.

In addition, the electric device 30 may return various parameter settings to the initial state when the power adjustment control is not executed for a certain period of time. This parameter includes data stored in the storage unit 302 as the number of persons detected by the detection unit 308 according to the second embodiment, and the storage unit 302 as the amount of change in deviation power according to the third embodiment. Contains stored data.

The functions of the transmission device 20 and the electrical device 30 according to the above embodiment can be realized by dedicated hardware or by a normal computer system.

For example, the program 29 stored in the storage unit 22 and the program 309 stored in the storage unit 302 are read by a computer such as a flexible disk, a CD-ROM (Compact Disk Read-Only Memory), a DVD (Digital Versatile Disk), etc. By storing and distributing in a possible recording medium and installing the

programs

29 and 309 in a computer, an apparatus for executing the above-described processing can be configured.

Further, the

programs

29 and 309 may be stored in a disk device included in a server device on a communication network represented by the Internet, and may be downloaded onto a computer while being superimposed on a carrier wave, for example.

The above-described processing can also be achieved by starting and executing the

programs

29 and 309 while transferring them via the communication network.

Furthermore, the above-described processing can also be achieved by executing all or part of the

programs

29 and 309 on the server device and executing the

programs

29 and 309 while the computer transmits / receives information related to the processing via the communication network. can do.

When the above functions are realized by sharing an OS (Operating System), or when the functions are realized by cooperation between the OS and an application, only the part other than the OS may be stored in a medium and distributed. It may also be downloaded to a computer.

Further, the means for realizing the functions of the transmission device 20 and the electric device 30 is not limited to software, and a part or all of the means may be realized by dedicated hardware including a circuit.

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

The present invention is suitable for power control.

100 power control system, 10 measurement device, 10a current transformer, 11 measurement unit, 12 storage unit, 13 notification unit, 20 transmission device, 21 measurement device communication unit, 22 storage unit, 23 calculation unit, 24 device communication unit, 29 Program, 30-33 electrical equipment, 301 receiving unit, 302 storage unit, 303 power supply unit, 304 measurement unit, 305 control unit, 306 operation unit, 307 reception unit, 308 detection unit, 309 program, 400 housing, 401 distribution board 70 Power source.

Claims

An electrical device installed in a house and connected to a transmitting device,
Data indicating a ratio between a reference value of total power supplied to the house via a power line and a difference between a measured value of the total power and a target value of the total power, and is broadcast from the transmission device Receiving means for repeatedly receiving the data to be transmitted;
Measuring means for measuring the device power, which is the power consumed by the electric device, and outputting the measured value of the device power; and
Control means for controlling the device power to reduce the magnitude of the difference by changing the operating state of the electrical device to a predetermined state corresponding to the ratio and the measured value of the device power,
Electrical equipment comprising.
And a receiving unit that receives designation of any one of the control by the control unit that is executed when a predetermined condition is satisfied, executed regardless of the condition, and not executed regardless of the condition. Prepared,
The receiving means receives the reference value and the data indicating the difference;
The condition is satisfied when the difference is greater than a first threshold;
The control means determines whether or not to control the device power according to the designation received by the receiving means.
The electrical device according to claim 1.
The receiving means repeatedly receives the reference value and the data indicating the difference,
The control means includes
Changing the operating state of the electrical device to a first state corresponding to the ratio between the reference value and the difference indicated by the first data received by the receiving means;
If the amount of change from the difference indicated by the first data to the difference indicated by the second data received by the receiving means after the first data is greater than a second threshold, Change the device power by a certain amount by changing the operating state of the device to the second state,
When the change amount is smaller than the second threshold, the device power is changed by an amount larger than the predetermined amount by changing the operating state of the electric device to a third state different from the second state.
The electric device according to claim 1 or 2.
It further comprises detection means for detecting the number of people in the space where the electrical equipment is installed,
The control means includes
When the number of persons detected by the detecting means is greater than a third threshold value, and the third data and the fourth data are received in order by the receiving means, the third data and the third data 4, the operating state of the electric device is changed to a state corresponding to the ratio indicated by any one of the data, and the electric device is changed to a state corresponding to the ratio indicated by the other data. Does not change the operating state of
The electric device according to any one of claims 1 to 3.
When the control unit changes the operating state of the electrical device, the receiving unit newly receives the operating state of the electrical device after a predetermined length of time has elapsed in association with the changed operating state. Change to a state corresponding to the ratio indicated by the data
The electrical device according to any one of claims 1 to 4.
A transmitter that broadcasts data indicating a ratio between a reference value of total power supplied to a house via a power line, and a difference between the measured value of the total power and the target value of the total power;
An electrical device installed in the house and connected to the transmitter;
A power control system comprising:
The electrical equipment is
Receiving means for repeatedly receiving the data;
Measuring means for measuring the device power, which is the power consumed by the electrical device, and outputting the measured value of the device power;
Control means for controlling the device power to reduce the magnitude of the difference by changing the operating state of the electrical device to a predetermined state corresponding to the ratio and the measured value of the device power; ,
Having a power control system.
The operating state of the electrical equipment installed in the house, the ratio between the reference value of the total power supplied to the house via a power line, and the difference between the measured value of the total power and the target value of the total power, And by changing to a predetermined state corresponding to a measured value of device power that is the power consumed by the electrical device, the device power is controlled to reduce the magnitude of the difference,
Power control method.
On the computer,
The operating state of the electrical equipment installed in the house, the ratio between the reference value of the total power supplied to the house via a power line, and the difference between the measured value of the total power and the target value of the total power, And by changing to a predetermined state corresponding to a measured value of device power that is the power consumed by the electrical device, the device power is controlled to reduce the magnitude of the difference,
A program to make things happen.