JP5131145B2 - Power control system and control method of power control system - Google Patents

Description

The present invention relates to a power control system that controls devices in order to prevent a device in use from being turned off by operating a current limiter of a home power trunk line, and control of the power control system
One in which relates to a method.

  Conventionally, as this type of power control system, for example, when a device is in use, a breaker device is used for permission to use, the breaker device makes a permission decision, and the device is operated within the power permitted by the breaker device. There are some (see, for example, Patent Document 1).

  FIG. 7 is a configuration diagram of a conventional power control system described in Patent Document 1, and FIG. 8 is a flowchart showing the processing operation of the device.

  In FIG. 7, the power line network includes a breaker device 101, a power line 102, outlets 103 </ b> A to 103 </ b> D, electric devices 104 to 106, and a power supply line 107.

  With the above configuration, in the operation of FIG. 8, it is assumed that the control unit of the electric devices 104 to 106 detects a trigger due to power consumption of a certain value (S101). For example, for an iron, the power is turned on or the set temperature rises. For an air conditioner, the power is turned on or the set temperature is changed. For a microwave, the power is turned on, or internal microwaves are emitted. This is a phenomenon such as a start, and the control unit detects a power consumption value (P) required for this (S102).

  Next, a power usage request message is generated, the fact that it is a power usage request message is written as a control code, and a value of P is written as the required power amount (S103).

  Next, the device moves to the device side, and the devices 104 to 106 that have received the use permission message including the permitted use power amount A see the value of the permitted use power amount in the use permission message and operate the device with this value. It is determined whether or not there is any meaning (S104 to S107). If this power value is a value as requested, power consumption is started with the power consumption (P) without any problem (S108). Even if the permitted power consumption (A) is less than the requested value (P), if it is determined that the power consumption at this value is meaningful, the power consumption at the power value (A) Is started (S109). If it is determined that the power consumption at this value is meaningless, the power consumption is stopped (S110).

In this way, in the power supply network, it is possible to control the amount of power to be supplied to be equal to or less than a predetermined amount and efficiently distribute power.
JP-A-10-94199

  However, in the conventional power control system, it is necessary to inquire of the breaker device whether it can be used every time the device starts its operation, and there is no operation to control the device by the trigger of the breaker device. If all the controllable devices are not on the line, the breaker may fall.

The present invention detects a current of one or more electrical systems, and when a current of a predetermined value or more is detected, the circuit breaker is cut off by making a power reduction request to the home appliance or an adapter connected to the home appliance. An object of the present invention is to provide a power control system, a control method for the power control system, and a program.

  In order to solve the conventional problem, in a power control system configured by a home appliance or a power control device connected between a home appliance or a commercial power source connected via a communication network unit and the home appliance, the home appliance and the The adapter includes a power detection unit that measures or grasps power consumption of a home appliance or a device connected to the adapter, and the power control device detects current of one or more electrical systems of the commercial power source. A power detector that detects the voltage of the power source, a voltage detector that detects the voltage of the commercial power source, a power calculator that calculates power from the detection information of the current detector and the voltage detector, and the home appliance or the commercial power source and the home appliance A transmitter / receiver that communicates with the adapter, and a device that has a lower priority in use priority set in advance when the current value detected by the current detector exceeds a predetermined current value. A power control system having a reduced power requesting unit that requests power.

  The power control system, power control system control method, and program according to the present invention provide a current detected by the power control device if the power control device sets a predetermined value for requesting reduced power to the device as a rated value for breaking the breaker. Even if the value exceeds a predetermined value, it is possible to prevent the breaker from being cut off by suppressing the power of the low priority device, and the device can be operated efficiently within the rated current capacity.

  1st invention is the electric power control system comprised by the household appliances connected via the communication network part or the adapter connected between commercial power supply and household appliances, and an electric power control apparatus, The said household appliances and the said adapter are household appliances A power detection unit that measures or grasps power consumption of the device or the device connected to the adapter, and the power control device includes a current detection unit that detects a current of one or more electrical systems of the commercial power source, Communicates with a voltage detection unit that detects the voltage of the power source, a power calculation unit that calculates power from detection information of the current detection unit and the voltage detection unit, and an adapter connected between the home appliance or the commercial power source and the home appliance When the current value detected by the transmission / reception unit and the current detection unit exceeds a predetermined current value, a reduction request is made to request reduced power from a device with a low priority of use priority set in advance. A power control system equipped with a power request unit, and if the power control device sets a predetermined value for requesting reduced power to the device to the rated value for breaker cutoff, the current value detected by the power control device is greater than or equal to the predetermined value Even in such a case, it is possible to prevent the breaker from being cut off by suppressing the power of the low-priority device, and the device can be operated by effectively utilizing the rated current capacity. In addition, the power controller side does not need to be aware of the setting state such as the operation mode on the device side or the power consumption state, and simply sends the necessary reduced power to the device, and the device side performs complex control processing. Even if it is not necessary, the power can be suppressed in accordance with the received power reduction request, so that a complicated information processing function is not required, so that a system can be constructed at low cost.

  The second invention is particularly characterized in that, in the power control system of the first invention, the reduced power requested by the reduced power requesting unit is a power value that is greater than or equal to a predetermined current value. Therefore, it is possible to reliably prevent the breaker from shutting down, and to effectively use the rated current capacity to operate the equipment.

In a third aspect of the invention, in particular, in the power system of the first or second aspect of the invention, when the home appliance or the adapter receives a request for reduced power from a power control device, information including a power value that can be reduced is stored. A reduced power response unit that responds to the control device, and a device power suppression control unit that controls the device so as to reduce the power used in response to the power value that can be reduced or less, the power control device includes the home appliance or When the power value that can be reduced in the reduced power response received from the adapter is less than the requested reduced power, the reduced power is used as reduced power, and the reduced power is requested to the next lowest priority device. In this way, power can be reduced in order from the lowest priority equipment to ensure that the breaker is not shut off, and the equipment can be operated by making effective use of the rated current capacity. Is that that.

  According to a fourth aspect of the present invention, in particular, in the power control system of the third aspect, the power control device is configured such that when the reducible power value responded by the reduced power response unit is 0 or more, the responding device has power If the current value detected by the power suppression control state determination unit and the current detection unit is determined to be in a suppression control state, and if the current value is less than the predetermined current value for a predetermined time or more, the preset use priority is given priority A device having a higher rank is equipped with a usable power determination unit that notifies a usable power as a remaining usable power of a difference value between a predetermined current value and a current value detected by the current detection unit. Yes, if there is a margin below the rated current in the power supply system to be measured, the device can be effectively utilized within the rated current capacity to ease the power suppression state or release the power suppression from the higher priority device. Get up and running Is that that.

  According to a fifth aspect of the present invention, in particular, in the power control system of the fourth aspect of the present invention, the power control device suppresses power if the current value detected by the current detection unit is a value smaller than the predetermined current value for a predetermined time or more. A difference value between a predetermined current value and a current value detected by the current detection unit can be used for a device having a higher priority of use priority set in advance from devices in a power suppression state in the control state determination unit. An available power determination unit that notifies available power as power, and the home appliance or the adapter is within the available power value if power suppression control is in progress when the available power notification is received from the power control device. When the power suppression relaxation is performed so that power is used and the suppression before the power suppression can be reduced, the power suppression cancellation notification unit that transmits the power suppression cancellation information to the power control device is provided. If there is a margin below the rated current in the power supply system to be measured, the communication traffic can be reduced by notifying the available power in descending order of priority from the power-suppressed devices. In order to improve efficiency and relax or cancel the power suppression state of the device, the device is operated by effectively utilizing the rated current capacity.

  In a sixth aspect of the present invention, in particular, in the power control system according to any one of the third to fifth aspects, the adapter includes a remote control transmission unit, and receives a power reduction request when the device connected to the adapter is an air conditioner. In this case, the operation mode of the air conditioner is changed to the air blowing mode, and the air conditioner power consumption is greatly reduced because the air conditioner compressor is stopped instead of stopping the air conditioner. In addition, even if the user sees the air conditioner, the user is operating in the air blowing mode, so there is no misunderstanding that the air conditioner is stopped.

  In a seventh aspect of the invention, in particular, in the sixth power control system, the adapter includes a remote control receiver, and when the device connected to the adapter is an air conditioner, information about the air conditioner being operated by another remote controller The remote control receiving unit intercepts the operation setting state, and when the available power notification is received from the power control device, the remote control operation is performed from the remote control transmission unit to the operation setting state before power suppression. Even if the air conditioner is once in the blower mode, it will automatically return to the original setting when the power supply system to be measured has a margin below the rated current. There is no need for setting.

An eighth aspect of the invention relates to a control method of a power control system configured with a home appliance or a power supply device connected between a commercial power source and a home appliance connected via a communication network unit, and the home appliance and the adapter. Is a power detection procedure for measuring or grasping power consumption of home appliances or devices connected to the adapter, a reduced power response procedure for responding to power that can be reduced upon receiving a power reduction request from the power control device, and reduction This is a control method that consists of a device power suppression control procedure that controls the device to reduce more power than possible, and the power control device sets a predetermined value for requesting reduced power to the device as the rated value for breaker cutoff. Then, even if the current value detected by the power control device exceeds the specified value, the breaker will shut down by suppressing the power of low priority devices. And it can be prevented thus, make the operation of the device by utilizing the effectively within the rated current capacity. In addition, it is a simple control method because power can be suppressed according to the received power reduction request without performing complicated control processing.

  A ninth aspect of the invention is a control method of a power control system configured by a home appliance or a power supply device connected between a home appliance or a commercial power source and a home appliance connected via a communication network unit, wherein the power control device includes: When the detected current value exceeds a predetermined current value, a reduced power request procedure for requesting reduced power to a device with a low priority of use priority set in advance, and power information that can be reduced from the home appliance or the adapter A reduction power response reception procedure for receiving a response, and a power suppression control state determination procedure for determining that the responding device is in a state of power suppression control when the response-receivable power value received is 0 or more, If the power value that can be reduced in the received response is less than the requested reduced power, the reduced power is reduced to the next lowest priority device as the reduced power. The power control device side does not have to be aware of the setting state such as the operation mode on the device side or the power consumption state, and only sends the necessary reduced power to the device. Good.

  A tenth aspect of the invention is a control method of a power control system configured by a home appliance or a power supply device connected between a home appliance or a commercial power source and a home appliance connected via a communication network unit, wherein the power control device includes: If the current value detected by the current detection unit is a value that is greater than or equal to a predetermined time and smaller than the predetermined current value, the priority order of use priorities set in advance from the devices in the power suppression state in the power suppression control state determination procedure is A control method comprising a usable power determination procedure for notifying a high device of a difference value between a predetermined current value and a current value detected by the current detection unit as remaining usable power, and measuring a power supply system If there is a margin below the rated current, it is possible to effectively utilize the rated current capacity within the rated current capacity in order to alleviate the power suppression status or cancel the power suppression from the higher priority device. Is that to the operation.

  An eleventh aspect of the invention is a control method of a power control system configured by a home appliance or a power supply device connected between a commercial power source and a home appliance connected via a communication network unit, and the home appliance and the adapter. Is a power suppression mitigation procedure for performing power suppression mitigation to use power within an available power value if power suppression control is in progress when receiving a usable power notification from the power control device, and before power suppression. If the suppression can be relaxed to the state, it is a control method consisting of a power suppression cancellation notification procedure for transmitting power suppression cancellation information to the power control device, and when there is a margin below the rated current in the power supply system to be measured, By making available power notifications in descending order of priority from devices that are in a power-suppressed state, communication traffic can be streamlined and the device's power-suppressed state can be alleviated. Ku is for canceling power restriction, furthermore, is that thereby the operation of the equipment by utilizing effectively the inside rated current capacity.

  A twelfth invention is a program for causing a computer to realize at least a part of the functions of the power control system of any one of the first to seventh inventions. And since it is a program, at least one part of the refrigerator or refrigerator system of this invention can be easily implement | achieved by cooperating hard resources, such as an electrical / information apparatus, a computer, and a server. Also, program distribution and installation can be simplified by recording on a recording medium or distributing a program using a communication line.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a system configuration diagram of a power control system of the present invention, FIG. 2 is a block diagram of a power control device and an IH cooking heater of the power control system, and FIG. 3 is an adapter connected to the power control device of the power control system and an air conditioner. FIG.

  In the first embodiment of the present invention, the current clamp 2 is sandwiched between the power lines on the input side of the distribution board 1 that draws the single-phase three-wire type 200V into the home, and the input currents L1 and L2 are supplied to the power control device 3. Measure with

  Also, on the output line of the distribution board, IH cooking heater 4 as AC200V system, AC5V system, one adapter 5a connected to air conditioner 7a in L1 phase, one dryer 8 and air conditioner 7b connected to L2 phase It is assumed that one adapter 5b is connected. The power control device 3, the IH cooking heater 4, and the adapters 5a and 5b incorporate a wireless communication device 6 and can transmit information. As a wireless communication method, communication is performed using a specific low-power wireless and a transmission frequency of 400 MHz band.

  In an actual home, many other devices are connected. However, in order to simplify the description, the following description will be given as the above configuration.

  FIG. 2 is a block diagram of the power control device 3 and the IH cooking heater 4 of the power control system. The power control device 3 measures the current flowing through the L1-phase power system line of the single-phase three-wire system 200V. There are an L2 current detector 11b that measures the current flowing through the power supply system line of the unit 11a and the L2 phase, and a voltage detector 12 that measures the voltage of the L1 phase or the L2 phase, and the L1 current detector 11a and the L2 current detector 11b. Based on the current value and the voltage value measured by the voltage detection unit 12, the power calculation unit 13 calculates the power value. In addition, the power calculates the L1 phase input power value, the L2 phase input power value, the L1 and L2 phase input power values, and the like.

  The control unit 14 performs arithmetic processing on the input information and data, and generates and sends out control signals and data.

  The current upper limit setting unit 15 sets an upper limit value of the current value flowing in the L1 phase and the L2 phase. The upper limit value is set in advance as an initial value, and if a change is necessary, an input means such as a switch or an external terminal may be attached so that it can be set from a dedicated terminal or a personal computer. In this embodiment, the initial value = 30 A is used.

  The priority determination part 16 determines the use priority of an apparatus. For example, the priority is set by the user by providing a dip switch on the device side, and when the device is turned on or the setting is switched, the priority information is transmitted to the power control device 3 to control the power. When the apparatus 3 receives the priority information from the device, the priority determination unit 16 determines the priority of the device and updates the priority information of the data managed by the management unit 18.

  The power suppression control state determination unit 17 determines whether or not the device is performing power suppression control, and determines by receiving information from the device side. The power suppression control state is managed by the management unit 18.

  The management unit 18 manages setting values and states such as the above-described priority information, device information, and device power suppression control state as data, stores them in a nonvolatile memory such as an EEPROM, and there is a power-off time. Also, make sure that the data is not erased.

  The usable power determination unit 19 calculates the difference between the current values measured by the L1 current detection unit 11a and the L2 current detection unit 11b from the current upper limit value set by the current upper limit value setting unit 15, The available power value based on the difference is transmitted to the device whose power is suppressed. That is, when the device side receives the usable power value, it means that the power can be further used if the power is within the usable power value.

  When the current value measured by the L1 current detection unit 11a or the L2 current detection unit 11b exceeds the current upper limit value set by the current upper limit value setting unit 15, the reduction power request unit 20 causes the breaker of the distribution board to drop. Since there is a possibility, a reduction power request is transmitted with the excess amount as a reduction power value so as to reduce the power consumption to the device side. That is, when the device side receives the reduced power request, it reduces the power used.

  The transmission / reception unit 21 transmits / receives data via the communication network unit 10 that performs wireless communication.

  The IH cooking heater 4 includes a current detection unit 31 that measures a current flowing through a 200 V single-phase power system line and a voltage detection unit 32 that measures a voltage. The current value measured by the current detection unit 31 and the voltage detection unit 32 Based on the voltage value, the power calculation unit 33 calculates the power usage value of the IH cooking heater 4.

  The control unit 34 performs arithmetic processing on the input information and data, and generates and sends out control signals and data.

  When the reduced power response unit 35 receives the reduced power request from the power control device 3, the reduced power response unit 35 responds with a power value that can be reduced. When the respondable power value that can be reduced is 0 or more, the device power suppression control unit 37 instructs the IHCH control unit 38 to suppress the output power of the IH cooking heater by the response power value.

  The power suppression release notification unit 36 notifies and transmits to the power control device 3 information on whether or not the device power suppression control unit 37 performs power suppression control of the IH cooking heater.

  FIG. 3 is a block diagram of an adapter connected to the power control device of the power control system and the air conditioner. Since the power control device 3 is the same as that in FIG. 2, the same reference numerals are given and description thereof is omitted.

  In the IH cooking heater 4, parts having the same functions as those of the IH cooking heater 4 in FIG.

  The remote control transmission unit 41 transmits a remote control signal from the remote control light emitting element, and can transmit an operation mode such as cooling or heating of the air conditioner 7a, temperature, air volume, and the like as a remote control signal.

  The remote control receiving unit 42 receives a remote control signal from the remote control light receiving element, intercepts the remote control signal transmitted when operated by the remote control attached to the air conditioner, and stores the remote control signal data. The stored remote control signal data generates a stored remote control signal and transmits the remote control signal to the air conditioner when canceling the power suppression state.

The air conditioner power suppression control unit 43 outputs a remote control signal for suppressing power from the remote control transmission unit 41 to the air conditioner when receiving information on reduced power or usable power from the power control device 3 and power suppression is necessary. Specifically, the operation mode is changed to “blower mode”. The advantages of using the "air blowing mode" are that the air conditioner compressor is stopped, so that the power consumption of the air conditioner can be reduced to several tens of watts, and that the air is blown even when the user looks at the indoor unit of the air conditioner. Therefore, it is possible to prevent the user from forgetting to install the air conditioner because there is no misunderstanding that the air conditioner has been stopped.

  Further, the IH cooking heater 4 is provided with a power plug 44 and an outlet 45. The power plug 44 is plugged into a household outlet, and the air conditioner is plugged into the outlet 45 so as to grasp the power consumption of the air conditioner. Can do.

  Next, the operation of the power control system of the present invention will be described using the flowcharts of FIGS. 4 and 5 and the data table of FIG.

  FIG. 4A is a flowchart showing the operation when the current upper limit value of the power control device of the power control system is exceeded, and FIG. 4B is a flowchart showing the operation of suppressing power on the device side of the power control system. It is. The device side refers to the adapters 5a and 5b to which the IH cooking heater 4 and the air conditioner are connected.

  Hereinafter, a description will be given with reference to FIGS. 4 (a) and 4 (b).

  In the power control device 3, when the current value detected by the L1 current detection unit 11a or the L2 current detection unit 11b exceeds the current value set by the current upper limit setting unit 15 (30A in the present embodiment) (S11), An alarm notification is given by sound or display due to excessive use of power in the home (S12), and a control target device (a control target device indicates a device capable of power suppression control equipped with a wireless communication device). Search is performed (S13). Next, as shown in FIG. 6, in the table data that manages the control target device, the priority, and the power suppression control state of the device in the management unit 18, the power suppression control state that can still suppress power is OFF. And, in the order of low priority (in FIG. 6, in order of high priority numerical value), if there is a device to be controlled (S14), “require power reduction request” is transmitted to the corresponding device via the communication network unit 10. Is transmitted (S15).

  On the other hand, upon receiving the “reduced power request” (S21), the device side calculates a reducible power (S22), and responds to the power control apparatus 3 with a reducible power value (S23). If it can be reduced (S24), a power suppression instruction is output to the device, and the reduced power responded in (S23) is suppressed (S25).

  Specifically, for example, when the device is an IH cooking heater, when the thermal power level output setting can be set in 10 stages and the operation is performed at the thermal power level 5 = 1000 W, if “reduced power = 200 W” is received, the IH The cooking heater controls the power consumption by instructing the IHCH control unit 38 from the device power suppression control unit 37 to perform power suppression to 800 W or less. If it is determined to operate while being suppressed to 800 W, the reduced power response unit 35 responds to the power control apparatus 3 with data including information on the reduced power amount 200 W (1000 W before suppression—800 W after suppression). In addition, if the operation of the IH cooking heater is stopped before receiving the “reduced power request”, the IH cooking heater itself cannot reduce the power any more, so that “reducible power value = 0 W” is sent to the power control device 3. respond.

  Further, for example, when the device is an adapter to which an air conditioner is connected, when the air conditioner is operating in “operation mode = heating operation (1200 W)” and the “reduction power = 200 W” is received, the adapter suppresses the air conditioner power. The control unit 43 outputs an instruction to change to “operation mode = air blowing mode (20 W)” to the air conditioner from the control unit 43, and the remote control transmission unit 41 outputs a remote control signal to the air conditioner. Therefore, the reduced power responded from the reduced power response unit 35 is 1180 W (1200 W before suppression—20 W after suppression).

  Returning to the description of the power control device 3, after transmitting a “reduced power request” (S 15) and receiving a “reducible power” response from the device side (S 16), the received “reducible power” is 0 W or more. If there is, the device side performs power suppression control, and changes and updates the power suppression control state of the device received with the table data shown in FIG. 6 from “OFF → ON” (S17).

  Further, when the reducible power received in response is smaller than the reduced power value requested in the reduced power request, the current upper limit value set by the current upper limit value setting unit 15 is not yet lower, so that the power can be further suppressed. A control target device is searched for any device (S13).

  Fig.5 (a) is a flowchart which shows the operation | movement at the time of falling below the electric current upper limit of the power control apparatus of a power control system, FIG.5 (b) shows the operation | movement which eases the electric power suppression by the side of the apparatus of a power control system. It is a flowchart to show. The device side refers to the adapters 5a and 5b to which the IH cooking heater 4 and the air conditioner are connected.

  Hereinafter, description will be made with reference to FIGS. 5 (a) and 5 (b).

  In the power control device 3, the current value detected by the L1 current detection unit 11a or the L2 current detection unit 11b is the current value (30A) −α (2A) set by the current upper limit value setting unit 15 (in this embodiment, 28A ) Has been maintained for a certain period of time (for example, 10 seconds) (S31) (32), the alarm notification is canceled because there is room in the household power (S33).

  Further, the control target device is searched for the device with the power suppression state = ON in the table data shown in FIG. 6 (S34). If there is a control target device (S35), the power value that can be afforded to the high priority device is transmitted as “usable power” to the corresponding device via the communication network unit 10 (S36).

  On the other hand, when receiving the “usable power request” (S41), the device side determines whether or not it can operate with power within the usable power value (S42). If the operation is possible within the usable power, a power suppression relaxation instruction is output to the device (S43). Then, if the power suppression of the device is 100% alleviated, that is, if it is possible to completely return to the state before the power suppression (S44), the power control state is returned to the power control device 3 (S45) (S46). ). Note that “used power” means an increased power value by reducing power suppression from the used power value during power suppression.

  Specifically, for example, when the device is an IH cooking heater, the thermal power output power is suppressed to 800 W (user setting is 1000 W) in the state described in the flowchart of FIG. When the detected current of the current detection unit 11a or the L2 current detection unit 11b is 28A, “usable power = 400 W (200V conversion × 2A)” is transmitted to the IH cooking heater, and the IH cooking heater suppresses the power. The power value that has been set can be released 100%, and the operation is resumed at 1000 W set by the user. Therefore, the IH cooking heater responds 200 W (1000 W after suppression mitigation—800 W before suppression mitigation) to the power control device 3 as the power used.

Further, for example, in the case where the device is an adapter to which an air conditioner is connected, in the case of the state described in the flowchart of FIG. 4, “operating mode = air blowing mode” is set to 20 W (user setting is “operating mode = heating mode”). )), When the higher detection current of the L1 current detection unit 11a or L2 current detection unit 11b is 28A, “usable power = 200 W (100V conversion × 2A)” is set to the adapter. Send. However, when the adapter is operated in the set state “operation mode = heating mode” before power suppression, 1200 W is required and the power cannot be reduced and the operation cannot be performed. Actually, in the case of an air conditioner, even if the operation state before power suppression is 1200 W, once stopped, the load state of the compressor changes, and when the compressor is restarted, power is consumed to around the rated value. Sometimes. Therefore, the adapter is provided with setting means to set the rated value of the device to be connected, or by providing a learning period and using it several times to several tens of times to grasp the power consumption of the device. It becomes possible to calculate a power value that can be relaxed after the suppression.

  Returning to the description of the power control device 3, after receiving the response of the used power from the device side after (S36) (S37), the power suppression state in the response message is confirmed and the table data managed by the management unit 18 is checked. The power suppression control state is updated (S38), and the process returns to (S31). If there is still power, the same operation is repeated, and the power suppression state is relaxed in order from the device with the highest priority.

  As described above, if the power control device sets the predetermined value for requesting reduced power to the equipment to the rated value for breaker cutoff, the priority level will be maintained even if the current value detected by the power control device exceeds the predetermined value. By controlling the power of low-powered devices, it is possible to prevent the breaker from being cut off, and the devices can be operated by effectively using the rated current capacity. In addition, the power controller side does not need to be aware of the setting state such as the operation mode on the device side or the power consumption state, and simply sends the necessary reduced power to the device, and the device side performs complex control processing. Even if it is not necessary, the power can be suppressed in accordance with the received power reduction request, so that a complicated information processing function is not required, so that a system can be constructed at low cost.

  In addition, when there is a margin below the rated current in the power supply system to be measured, communication traffic is streamlined by notifying the available power in descending order of priority from the devices in the power-suppressed state. In order to alleviate the power suppression state or cancel the power suppression, the device is operated by effectively utilizing the rated current capacity.

  In addition, when the device connected to the adapter is an air conditioner, when the power reduction request is received, the operation mode of the air conditioner is changed to the air blowing mode, and the air conditioner is not stopped, By switching to the air blow mode, the compressor of the air conditioner is stopped, so that the power consumption of the air conditioner can be greatly reduced. In addition, even if the user sees the air conditioner, the air conditioner is operating in the air blow mode. There is no worry about forgetting to install the air conditioner.

  In addition, even if the air conditioner is once in the blower mode, if there is a margin below the rated current in the power supply system to be measured, it automatically returns to the original setting state, so the user resets it by operating the air conditioner remote control There is no need for trouble.

  In addition, during power suppression control, if a display unit such as an LED is provided on the power control device and the device or adapter under power suppression control to clearly indicate the display during power suppression control, power is suppressed from the state set by the user. Can inform the user that it is operating and can give the user a sense of kindness and security.

  In the present embodiment, the device connected to the adapter is described as an air conditioner. However, if the home appliance can be controlled by a remote controller, a mode such as “operation mode = air blowing mode” that can significantly reduce power consumption or It can control by the same method by controlling to a stop state.

In addition, if it is a device that does not support remote control, such as home appliances such as jar pots and electric heaters, a power control device can be used to provide a power suppression instruction if the adapter is equipped with a function that can shut off the power with a relay or semiconductor switch. In the case of receiving from 3, a method of cutting off the power and reducing the power may be used.

  In the present embodiment, data is transmitted and received by specific low-power wireless communication that does not require wiring as the communication network unit 10, but power line communication or wired connection may be used.

  In addition, all of this embodiment can be configured in the same manner as a program for causing a computer to function as all or part of the means of the power control system.

  Note that the means and units described in this embodiment cooperate with hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like. You may implement in the form of the program to work. In the form of a program, new functions can be easily distributed / updated and installed by recording them on a recording medium such as magnetic media or optical media or distributing them via a communication line such as the Internet.

  As described above, the power control system, the power control system control method, and the program according to the present invention can be applied to a small-scale system in a home or a large-scale system other than a home. If it is desired to set the current upper limit value, the same method can be applied.

System configuration diagram of power control system of the present invention Block diagram of power control device and IH cooking heater of power control system Block diagram of adapter connected to power control device and air conditioner of power control system (A) The flowchart which shows the operation | movement when the electric current upper limit of the power control apparatus of a power control system is exceeded, (b) The flowchart which shows the operation | movement which suppresses the electric power by the side of the apparatus of a power control system. (A) The flowchart which shows the operation | movement at the time of falling below the electric current upper limit of the power control apparatus of a power control system, (b) The flowchart which shows the operation | movement which eases the electric power suppression by the side of the apparatus of a power control system. The figure which shows the table data managed by the management part of an electric power control apparatus Configuration diagram of conventional power control system Flow chart showing processing operation of a device of a conventional power control system

Explanation of symbols

3 Power control device 4 IH cooking heater 5a, 5b Adapter 10 Communication network unit 11a L1 current detection unit (current detection unit)
11b L2 current detector (current detector)
DESCRIPTION OF SYMBOLS 12 Voltage detection part 13 Power calculation part 17 Power suppression control state determination part 18 Management part 19 Usable power determination part 20 Reduction power request part 21 Transmission / reception part 35 Reduction power response part 36 Power suppression cancellation notification part 37 Appliance power suppression control part 41 Remote control transmission unit 42 Remote control reception unit 43 Air conditioner power suppression control unit (equipment power suppression control unit)

Claims (7)

In a power control system configured with a home appliance or a power control device connected between a home appliance or a commercial power source and a home appliance connected via a communication network unit,
The home appliance and the adapter are:
A power detection unit that measures or grasps the power consumption of a home appliance or a device connected to the adapter,
The power control device
A current detection unit for detecting a current of one or more electrical systems of the commercial power source;
A voltage detector for detecting the voltage of the commercial power supply;
A power calculator that calculates power from detection information of the current detector and the voltage detector;
A transmission / reception unit that communicates with a home appliance or an adapter connected between a commercial power source and the home appliance;
When the current value detected by the current detection unit exceeds a predetermined current value, a reduction power request unit that requests reduction power to a device with a low priority of use priority set in advance ,
When the home appliance or the adapter receives a request for reduced power from the power control device, the reduced power response unit that responds to the power control device with information that includes a power value that can be reduced, With a device power suppression control unit that controls the device to reduce power consumption,
If the power value that can be reduced in the reduced power response received from the home appliance or the adapter is less than the requested reduced power, the power control device sets the insufficient power as reduced power to the next lowest priority device. A power control system characterized by requiring reduced power . The power control device, when the reducible power value that responds in the reduced power response unit is 0 or more, a power suppression control state determination unit that determines that the responding device is in a power suppression control state, If the current value detected by the current detection unit is a value that is less than the predetermined current value for a predetermined time or more, the predetermined current value and the current detected by the current detection unit are applied to a device having a preset priority of use priority. The power control system according to claim 1, further comprising a usable power determination unit that notifies a usable power as a remaining usable power of a difference value from the value. If the current value detected by the current detection unit is a value that is greater than or equal to a predetermined time and smaller than the predetermined current value, the power control device is set in advance from the devices that are in the power suppression state by the power suppression control state determination unit. A device having a high priority order includes a usable power determination unit that notifies a usable power as a remaining usable power of a difference value between a predetermined current value and a current value detected by the current detection unit,
If the home appliance or the adapter receives power available control notification from the power control device, if power restraint control is in progress, it performs power restraint relaxation to use power within the available power value, before power restraint. 3. The power control system according to claim 2 , further comprising: a power suppression release notification unit that transmits power suppression cancellation information to the power control apparatus when the suppression can be reduced to the state. The adapter includes a remote control transmission unit, and when the device connected to the adapter is an air conditioner, the operation mode of the air conditioner is changed to a blower mode when a power reduction request is received . 4. The power control system according to any one of 3 . The adapter includes a remote control receiver, and when the device connected to the adapter is an air conditioner, the remote controller receiver intercepts information on the operation of the air conditioner by another remote controller and stores the operation setting state, 5. The power control system according to claim 4 , wherein when a usable power notification is received from the power control device, the remote control operation is performed from the remote control transmission unit in an operation setting state before power suppression. In a control method of a power control system configured with a home appliance connected via a communication network unit or an adapter and a power controller connected between a commercial power source and a home appliance,
The home appliance and the adapter are:
A power detection procedure for measuring or grasping power consumption of a home appliance or a device connected to the adapter, a reduced power response procedure for responding to a power that can be reduced upon receiving a power reduction request from the power control device, and a reduction possible A control method comprising a device power suppression control procedure for controlling a device in order to reduce power above power. In a control method of a power control system configured with a home appliance connected via a communication network unit or an adapter and a power controller connected between a commercial power source and a home appliance,
The power control device includes a reduced power request procedure for requesting reduced power to a device having a low priority of use priority set in advance when the detected current value exceeds a predetermined current value, and the home appliance or the adapter Reducing power response reception procedure for receiving a response of reducible power information, and power suppression for determining that the responding device is in a power suppression control state when the receivable reducible power value is 0 or more Control state determination procedure and procedure for requesting reduced power from the next lowest priority device as the reduced power if the power value that can be reduced in the received reduced power response is less than the requested reduced power A control method comprising:

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