JP2015154616A - Control device, control method, program and power control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress a stop of power supply from a power generator due to an inrush current occurring due to activation of a load.SOLUTION: A control device 20 comprises: a determination section 23; a charge control section 25; and a start instruction section 27. The determination section 23 determines whether or not a sum current value of an inrush current of a first load and current consumption of a second load having been operated in a steady state is equal to a first current value or more when the first load is activated. The charge control section 25 instructs a power storage device 14 executing charging of a storage battery and feeding of the power generated by the power generator to a load on the basis of power generated by a power generator to reduce charge power of the storage battery when the sum current value is determined to be equal to the first current value or more. The start instruction section 27 activates the first load after the charge power of the storage battery is reduced.

Description

  Embodiments described herein relate generally to a control device, a control method, a program, and a power control system.

  In the self-sustaining operation of the solar power generation system, it is not possible to operate a load that consumes electric power exceeding the amount of power generation. Therefore, a power control system is known that determines a load operation schedule within a range that does not exceed the amount of power generation based on the supply status of power from the photovoltaic power generation system and the load status. In addition, when the total power consumption exceeds a predetermined value due to the inrush current of the device to be activated, the cooperative power that delays the activation timing of the device or temporarily suspends other devices that are in operation before starting the device Control systems are known.

  However, there are devices that cannot change the activation timing and those that cannot be paused during operation. When a device that cannot be stopped is in operation while the power generator is operating independently, and the device is newly started, the total power consumption of multiple devices exceeds the power generation amount of the power generator due to the inrush current of the device. There is. In such a case, the power supply from the power generator stops.

JP 2012-228043 A JP 2003-299264 A

  Therefore, the problem to be solved by the embodiments of the present invention is that a control device, a control method, a program, and power that can suppress the supply of power from the power generation device from being stopped by an inrush current generated by starting a load. To provide a control system.

  The control device according to the present embodiment includes a determination unit, a charge control unit, and an activation instruction unit. When the first load is activated, the determination unit determines that the total current value of the inrush current of the first load and the current consumption in the steady state of the already operating second load is the first value. It is determined whether or not the current value is greater than or equal to the current value. When the total current value is equal to or greater than the first current value, the charging control unit charges the storage battery based on the power generated by the power generation device, and loads the power generated by the power generation device. Is instructed to the power storage device that performs the power feeding of the battery, and the charging power of the storage battery is decreased. The activation instruction unit activates the first load after charging power of the storage battery is reduced.

  According to the embodiment of the present invention, it can be expected that the supply of power from the power generator is stopped due to the inrush current generated by the start of the load.

FIG. 1 is a system configuration diagram illustrating an example of a power control system according to the embodiment. FIG. 2 is a block diagram illustrating an example of a functional configuration of the control device. FIG. 3 is a diagram illustrating an example of the data structure of the device table stored in the storage unit. FIG. 4 is a diagram for explaining an example of the relationship between the inrush current of a newly activated device and the charging current of the storage battery. FIG. 5 is a diagram for explaining an example of the relationship between the inrush current of a newly activated device and the charging current of the storage battery. FIG. 6 is a flowchart illustrating an example of the operation of the control device. FIG. 7 is a flowchart illustrating an example of the operation of the power storage device. FIG. 8 is a hardware configuration diagram illustrating an example of a computer that realizes the function of the control device.

  A control device according to an embodiment described below includes a determination unit, a charge control unit, and an activation instruction unit. When the first load is activated, the determination unit determines that the total current value of the inrush current of the first load and the current consumption in the steady state of the already operating second load is the first current. It is determined whether or not it is greater than or equal to the value. When the total current value is equal to or greater than the first current value, the charging control unit performs charging of the storage battery based on the power generated by the power generation device and feeding of the power generated by the power generation device to the load The power storage device is instructed to reduce the charging power of the storage battery. When the total current value is equal to or greater than the first current value, the activation instructing unit activates the first load after the charging power of the storage battery is reduced. Thereby, it can be expected that the supply of electric power from the power generation device is stopped from being stopped by an inrush current generated by the activation of the load.

  In addition, the control device according to the embodiment described below includes, for each load, a storage unit that stores inrush current, current consumption in a steady state, and information indicating whether or not the device is in operation. When an activation request is received from one load, the inrush current of the first load and the current consumption in the steady state of the second load being operated are extracted from the storage unit, and the extracted inrush current and steady state are It may be determined whether the total current value of the current consumption is equal to or greater than the first current value.

  In addition, the control device according to the embodiment described below further includes a collection unit that collects information indicating whether inrush current, current consumption in a steady state, and whether or not the device is in operation for each load and stores the information in the storage unit. May be.

  In the control device according to the embodiment described below, the storage unit stores information on the duration of the inrush current for each load, and the charge control unit has a total current value of the first current. When the value is equal to or greater than the value, with reference to the storage unit, it is generated by the power generator until at least the duration of the inrush current of the first load elapses after the first load is activated. The power storage control device may be further instructed to supply the current based on the power and the current based on the power discharged from the storage battery to the first load and the second load already in operation.

  In the control device according to the embodiment described below, the storage unit stores information on the duration of the inrush current for each load, and the charge control unit has a total current value of the first current. When the value is equal to or greater than the value, with reference to the storage unit, it is generated by the power generator until at least the duration of the inrush current of the first load elapses after the first load is activated. The storage control device is further instructed to supply the larger one of the current based on the stored power and the current based on the power discharged from the storage battery to the first load and the already operating second load. You may do it.

  In the control device according to the embodiment described below, the first current value is generated by the power generation device as a current value obtained by combining the current value for charging the storage battery and the second current value. It may be a value subtracted from the value of the current that can be supplied based on the electric power.

  In the control device according to the embodiment described below, the determination unit determines whether or not the total current value is equal to or greater than the first current value when the power storage device is charging the storage battery. Also good.

  In the embodiment described below, the power generation device may generate electric power using renewable energy.

  In the control method according to the embodiment described below, the computer executes a determination process, a charge control process, and a start instruction process. When the first load is activated in the determination step, the computer determines that the total current value of the inrush current of the first load and the current consumption in the steady state of the second load already in operation is predetermined. It is determined whether the current value is equal to or greater than the current value. In addition, in the charge control step, the computer charges the storage battery based on the power generated by the power generator and loads the power generated by the power generator when the total current value is equal to or greater than the predetermined current value. Is instructed to the power storage device that performs the power supply, and the charging power of the storage battery is reduced. Further, the computer activates the first load after the charge power of the storage battery is reduced when the total current value is equal to or greater than the predetermined current value in the activation instruction step.

  In addition, a program according to the embodiment described below causes a computer to execute a determination procedure, a charging control procedure, and an activation instruction procedure. In the determination procedure, when the first load is activated, the computer determines that the total current value of the inrush current of the first load and the current consumption in the steady state of the second load already in operation is a predetermined value. It is determined whether the current value is equal to or greater than the current value. In addition, when the total current value is equal to or greater than a predetermined current value in the charge control procedure, the computer charges the storage battery based on the power generated by the power generation device and loads the power generated by the power generation device. Is instructed to the power storage device that performs the power supply, and the charging power of the storage battery is reduced. Further, the computer activates the first load after the charge power of the storage battery is reduced when the total current value is equal to or greater than the predetermined current value in the activation instruction procedure.

  In addition, a power control system according to an embodiment described below includes a power generation device, a power storage device, and a control device. The power storage device performs charging of the storage battery based on the power generated by the power generation device and power feeding to the load of the power generated by the power generation device. The control device controls the power storage device. The control device includes a determination unit, a charge control unit, and an activation instruction unit. When the first load is activated, the determination unit determines that the total current value of the inrush current of the first load and the current consumption in the steady state of the already operating second load is the first current. It is determined whether or not it is greater than or equal to the value. When the total current value is equal to or greater than the first current value, the charging control unit performs charging of the storage battery based on the power generated by the power generation device and feeding of the power generated by the power generation device to the load The power storage device is instructed to reduce the charging power of the storage battery. When the total current value is equal to or greater than the first current value, the activation instructing unit activates the first load after the charging power of the storage battery is reduced.

  Hereinafter, a control device, a control method, a program, and a power control system according to embodiments will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the structure which has the same function in embodiment, and the overlapping description is abbreviate | omitted. Further, the control device, control method, program, and power control system described in the following embodiments are merely examples, and do not limit the present invention.

[Configuration of Power Control System 1]
FIG. 1 is a system configuration diagram illustrating an example of a power control system 1 according to the embodiment. The power control system 1 according to the present embodiment is provided in a facility such as a house, for example, and includes a power generation device 11, a power storage device 14, and a control device 20. In the present embodiment, the power generation device 11 generates power using renewable energy. In the present embodiment, the renewable energy used by the power generation apparatus 11 is, for example, sunlight. In addition, the renewable energy which the electric power generating apparatus 11 utilizes is not restricted to sunlight, A wind force, wave power, tidal power, flowing water, tide, geothermal, biomass etc. may be sufficient. Further, the power generation device 11 may generate power using depletable energy such as fossil fuel together with renewable energy or instead of renewable energy.

  The power generation device 11 includes a PCS (Power Conditioning System) 110 and a solar panel 111. The PCS 110 in the present embodiment converts the power generated by the solar panel 111 into, for example, AC 100V power, and supplies the converted power to the power storage device 14. The PCS 110 stops power supply to the power storage device 14 when the value of the current consumed by the load exceeds the value of the current based on the power generated by the solar panel 111 (so-called capacity over). .

  When power is supplied from the system 10 (when there is no power failure), the distribution board 12 supplies the power supplied from the system 10 to the devices 13a and 13b, which are general loads, via normal electrical wiring and connectors. To do. Moreover, the distribution board 12 supplies the electric power supplied from the system | strain 10 via the distribution board 15 to the apparatuses 16a and 16b which are selection loads.

  The distribution board 15 supplies the power received from the system 10 via the distribution board 12 to the devices 16a and 16b via emergency electrical wiring and outlets when there is no power failure. Moreover, the distribution board 15 supplies the electric power received via the electrical storage apparatus 14 to the apparatus 16a and 16b via emergency electrical wiring and an electrical outlet at the time of a power failure. The distribution board 15 may supply the power received via the power storage device 14 to the devices 16a and 16b via an emergency electrical wiring or outlet even when there is no power failure.

  Moreover, the electrical storage apparatus 14 charges the storage battery 17 based on the electric power which deducted the electric power consumed by the selection load among the electric power produced | generated by the solar panel 111 at the time of a power failure. In addition, the power storage device 14 measures the power output from the PCS 110 and calculates a current value that can be supplied with the current power generation amount. In response to an inquiry from the control device 20, the calculated current value is notified.

  In addition, the power storage device 14 controls the execution and stop of the charging of the storage battery 17 based on the power from the solar panel 111 in response to an instruction from the control device 20 during a power failure. In addition, the power storage device 14 controls the execution and stop of the discharge of the storage battery 17 in response to an instruction from the control device 20 during a power failure.

  The access point 18 performs wireless communication with the control device 20 and each device 16 using a wireless communication method such as Bluetooth (registered trademark) or wireless LAN. Then, the access point 18 performs communication between the control device 20 and each device 16, communication between the control device 20 and the communication line 19, and communication between each device 16 and the communication line 19. Relay.

  Each device 16 includes a communication unit that communicates with the control device 20 via the access point 18, and a main body unit that realizes functions unique to the device 16. The communication unit transmits an activation request including the machine ID for identifying the device 16 to the control device 20 via the access point 18 when the activation is instructed by the user. When the activation instruction is received from the control device 20 via the access point 18, the communication unit activates the main body. The main body starts operation using the power supplied via the distribution board 15.

  The control device 20 instructs the power storage device 14 to supply the electric power output from the PCS 110 to the emergency electrical wiring or outlet through the distribution board 15 when a power failure occurs.

  Further, when the control device 20 receives a start request from the device 16 via the access point 18 during a power failure, based on the device ID included in the start request, the control device 20 transmits the start request. The value of the inrush current that flows through the main body when starting 16 is specified. And the control apparatus 20 specifies the value of the consumption current in the steady state of the apparatus 16 which is already in operation among the apparatuses 16 connected to the distribution board 15. In addition, the control device 20 makes an inquiry to the power storage device 14 and obtains a current value that can be supplied with the current power generation amount of the power generation device 11.

  Then, the control device 20 determines the steady state of the active device 16 among the value of the inrush current that flows to the main body when the device 16 that is the transmission source of the activation request is activated, and the device 16 that is connected to the distribution board 15. The current consumption value in the state is totaled. Then, the control device 20 instructs the power storage device 14 to stop charging the storage battery 17 when the total current value is equal to or greater than the first current value. The first current value is, for example, a value obtained by subtracting a value obtained by adding a predetermined margin to the value of the charging current of the storage battery 17 from the value of the current that can be supplied in the current power generation amount of the power generation device 11.

  When the control device 20 receives a charge stop response indicating that charging of the storage battery 17 has been stopped from the power storage device 14, the control device 20 transmits a start instruction to the device 16 that is the source of the start request. When the total current value is less than the first current value, the control device 20 does not instruct the power storage device 14 to stop charging the storage battery 17, and starts the start request transmission source device 16. Send instructions.

  Thus, when the total value of the current consumed in the device 16 connected to the distribution board 15 exceeds the first current value due to the inrush current of the newly activated device 16, the storage battery 17 is charged. By stopping, the possibility that the value of the consumed current can be suppressed within the range of the current value that can be supplied with the current power generation amount of the power generation device 11 is increased. Thereby, it can be expected that the power supply from the power generation device 11 is prevented from being stopped by the inrush current of the device 16 to be newly activated.

[Configuration of Control Device 20]
FIG. 2 is a block diagram illustrating an example of a functional configuration of the control device 20. The control device 20 includes a storage unit 21, a collection unit 22, a determination unit 23, a wireless communication unit 24, a charging control unit 25, a wired communication unit 26, and an activation instruction unit 27.

  The storage unit 21 stores a device table 210. FIG. 3 is a diagram illustrating an example of a data structure of the device table 210 stored in the storage unit 21. In the device table 210, an inrush current 212, a duration 213, a consumption current 214, and a status 215 are stored in association with the device ID 211 that identifies each device 16.

  The inrush current 212 is a value of an inrush current generated when the main body of the device 16 corresponding to the device ID 211 is activated. The duration 213 is the duration of the inrush current of the device 16 corresponding to the device ID 211. The current consumption 214 is a current consumption value in a steady state when the device 16 corresponding to the device ID 211 is operating. The status 215 indicates whether the device 16 corresponding to the device ID 211 is operating or stopped. When “operation” is stored in the status 215, this indicates that the device 16 corresponding to the device ID 211 is operating. When “stop” is set in the status 215, the device 16 corresponding to the device ID 211 is displayed. Indicates stoppage.

In FIG. 3, the inrush current 212 of “I _r1 ”, the duration 213 of “T ₁ ”, the current consumption 214 of “I _c1 ”, and the status 215 of “stop” are associated with the device ID 211 of “E001”. The device table 210 in which is stored is illustrated.

  Returning to FIG. 2, the description will be continued. The wireless communication unit 24 performs wireless communication with the access point 18 using a wireless communication method such as Bluetooth or wireless LAN. The wireless communication unit 24 receives the communication data transmitted from each device 16 via the access point 18 and sends the received communication data to the collection unit 22 and the determination unit 23. In addition, the wireless communication unit 24 transmits the communication data received from the activation instruction unit 27 to the destination device 16 via the access point 18.

  The wired communication unit 26 performs wired communication with the power storage device 14 via a communication cable. The wired communication unit 26 receives the communication data transmitted from the power storage device 14 via the communication cable, and sends the received communication data to the determination unit 23 and the charging control unit 25. In addition, the wired communication unit 26 transmits the communication data received from the charging control unit 25 to the power storage device 14 via the communication cable. Note that the wired communication unit 26 may perform wireless communication with the power storage device 14 using a wireless communication method such as Bluetooth or wireless LAN instead of wired communication.

  The collection unit 22 registers from each device 16 via the wireless communication unit 24 the device ID of the device 16, the value of the inrush current, the duration of the inrush current, and the value of the current consumed during operation in a steady state. When the request is received, the inrush current value, duration, and current consumption value included in the registration request are associated with the device ID included in the registration request together with the status indicating “stop”. , It is registered in the device table 210 in the storage unit 21.

  The registration request may not include the inrush current value, the duration, and the current consumption value. In this case, the collection unit 22 accesses the homepage of the manufacturer of the device 16 via the wireless communication unit 24, the access point 18, and the communication line 19 based on the device ID included in the registration request. . Then, the collection unit 22 may acquire information on the inrush current, duration, and current consumption of the device 16 corresponding to the device ID from the access destination.

  In addition, when the collection unit 22 receives a stop notification including the device ID from each device 16 via the wireless communication unit 24 and the access point 18, the collection unit 22 refers to the device table 210 in the storage unit 21 and notifies the stop notification. “Stop” is set in the status associated with the device ID included in the. When the operation of the main unit stops (when power supply to the main unit stops), the communication unit of each device 16 sends a stop notification including the device ID of the device 16 via the access point 18. Send to. The collection unit 22 may monitor whether each device 16 is operating by transmitting a heartbeat signal to each device 16 via the wireless communication unit 24 and the access point 18.

  When the determination unit 23 receives an activation request from the device 16 via the wireless communication unit 24 and the access point 18, the determination unit 23 refers to the device table 210 in the storage unit 21 and sets the device ID included in the activation request. The value of the inrush current associated is acquired. Then, the determination unit 23 refers to the device table 210 in the storage unit 21, identifies the device ID associated with the “operation” status, and the current consumption value associated with the identified device ID. To get. Then, the determination unit 23 sums the value of the inrush current and the value of the current consumption of the operating device 16.

  Next, the determination unit 23 makes an inquiry to the power storage device 14 via the wired communication unit 26 and acquires a current value that can be supplied based on the current power generation amount by the power generation device 11. Then, the determination unit 23 calculates a value obtained by adding a predetermined margin to the value of the charging current of the storage battery 17, and calculates a value obtained by subtracting the calculated value from the acquired current value as the first current value.

Next, the determination unit 23 determines whether the total current value of the inrush current value of the activated device 16 and the current consumption value of the operating device 16 is equal to or greater than the calculated first current value. To do. FIGS. 4 and 5 are diagrams for explaining an example of the relationship between the inrush current of the device 16 to be newly activated and the charging current of the storage battery 17. 4 and 5, I _max indicates a current value that can be supplied based on the current power generation amount by the power generation device 11. I _b indicates the charging current of the storage battery 17. _Im represents a current value margin. I _th represents the first current value. I _ca , I _cb ,... Indicate current consumption values in the steady state of each of the operating devices 16. I _r indicates the inrush current of the device 16 that is the source of the activation request. I _c indicates the current consumption in the steady state after the activation of the device 16 that is the transmission source of the activation request. I _total shows a rush current I _r of the transmission source device 16 of the activation request, each of the current consumption I _ca equipment 16 in operation, I _cb, the current value of the sum of .... T indicates the duration of the inrush current of the device 16 that is the source of the activation request.

For example, as illustrated in FIG. 4, when the total current value I _total is less than the first current value I _th , the determination unit 23 includes the device ID included in the activation request and the device corresponding to the device ID. 16 is instructed to the activation instructing unit 27. On the other hand, for example, as illustrated in FIG. 5, when the total current value I _total is equal to or greater than the first current value I _th , the determination unit 23 determines the charging power of the storage battery 17 together with the device ID included in the activation request. To the charge control unit 25. The determination unit 23 may instruct the charge control unit 25 to decrease the charge power, or may instruct the charge control unit 25 of the value of the charge power after the decrease. In the present embodiment, the determination unit 23 instructs the charge control unit 25 to stop charging, which means that the value of the charging power after the decrease is 0.

As shown in FIG. 5, when the total current value I _total is equal to or greater than the first current value I _th , the current that can be supplied from the distribution board 15 is stopped by stopping the charging of the storage battery 17. increasing the charging current I _b min. As a result, the current I _max that can be supplied based on the current power generation amount by the power generation device 11, the inrush current I _r generated by the activation of the device 16, and the current consumption I _ca , I _cb,. The total current I _total can be assigned. Therefore, it can be expected that the supply of power from the power generation device 11 is suppressed from being stopped by an inrush current associated with the activation of the device 16.

  When the charge control unit 25 is instructed to stop charging together with the device ID from the determination unit 23, the charge control unit 25 refers to the device table 210 in the storage unit 21 and is associated with the device ID instructed from the determination unit 23. Get the duration of the inrush current. Then, the charge control unit 25 transmits a charge stop request to the power storage device 14 via the wired communication unit 26.

  The power storage device 14 stops charging the storage battery 17 in response to the charge stop request received from the charge control unit 25. Then, the power storage device 14 transmits a charge stop response to the charge control unit 25. Note that the power storage device 14 measures the total value of current consumption by the operating device 16 and stops charging the storage battery 17 when the total value of current consumption exceeds a predetermined threshold. Therefore, when charging of the storage battery 17 is stopped, the power storage device 14 immediately returns a charge stop response to the charge stop request from the charge control unit 25. The predetermined threshold is, for example, a value obtained by subtracting a value obtained by adding a predetermined margin to the value of the charging current of the storage battery 17 from the value of the current that can be supplied with the current power generation amount of the power generation device 11.

  When the charge control unit 25 receives a charge stop response from the power storage device 14, the charge control unit 25 instructs the activation instruction unit 27 to activate the device 16 corresponding to the device ID together with the device ID instructed by the determination unit 23. Then, when the duration acquired from the device table 210 elapses after receiving the charge stop response from the power storage device 14, the charge control unit 25 sends a charge restart request to the power storage device 14 via the wired communication unit 26. Send.

  The power storage device 14 restarts charging of the storage battery 17 in response to the charge restart request received from the charge control unit 25. When the total value of the current consumption of each device 16 exceeds a predetermined threshold, the power storage device 14 continues to stop charging the storage battery 17 even if it receives a charge resumption request from the charge control unit 25.

  When the activation instruction unit 27 is instructed to activate the device 16 together with the device ID from the determination unit 23 or the charging control unit 25, the activation instruction unit 27 transmits the activation instruction to the device 16 corresponding to the device ID via the access point 18. . Then, the activation instruction unit 27 refers to the device table 210 in the storage unit 21 and changes the status associated with the device ID instructed from the determination unit 23 or the charging control unit 25 to “operation”. The communication unit of the device 16 that has received the activation instruction activates the main unit.

[Operation of Control Device 20]
FIG. 6 is a flowchart illustrating an example of the operation of the control device 20.

  First, the determination unit 23 determines whether an activation request has been received from the device 16 via the wireless communication unit 24 and the access point 18 (S100). When the determination unit 23 has not received the activation request (S100: No), the collection unit 22 determines whether or not a stop notification has been received from the device 16 via the wireless communication unit 24 and the access point 18 ( S111). When the stop notification is not received from the device 16 (S111: No), the determination unit 23 executes the process shown in step S100 again.

  On the other hand, when the stop notification is received from the device 16 (S111: Yes), the collection unit 22 refers to the device table 210 in the storage unit 21, and the status associated with the device ID included in the stop notification. Is changed to “stop” (S112), and the determination unit 23 executes the process shown in step S100 again.

  When the activation request is received (S100: Yes), the determination unit 23 refers to the device table 210 in the storage unit 21, and acquires the value of the inrush current associated with the device ID included in the activation request. (S101). Then, the determination unit 23 refers to the device table 210 in the storage unit 21, identifies the device ID associated with the “operation” status, and the current consumption value associated with the identified device ID. Is acquired (S102). Then, the determination unit 23 sums the value of the inrush current and the value of the current consumption of the operating device 16.

  Next, the determination unit 23 makes an inquiry to the power storage device 14 via the wired communication unit 26, and acquires a current value that can be supplied based on the current power generation amount by the power generation device 11 from the power storage device 14 (S103). Then, the determination unit 23 calculates a value obtained by adding a predetermined margin to the value of the charging current of the storage battery 17, and calculates a value obtained by subtracting the calculated value from the acquired current value as the first current value.

  Next, the determination unit 23 determines whether the total current value of the inrush current value of the activated device 16 and the current consumption value of the operating device 16 is equal to or greater than the calculated first current value. (S104). When the total current value is less than the first current value (S104: No), the determination unit 23 activates the device 16 corresponding to the device ID together with the device ID included in the activation request. 27.

  The activation instruction unit 27 transmits an activation instruction via the access point 18 to the device 16 corresponding to the device ID instructed by the determination unit 23 (S113). Then, the activation instructing unit 27 refers to the device table 210 in the storage unit 21, changes the status associated with the device ID instructed from the determining unit 23 to “operation” (S114), and determines the determining unit 23. Performs the process shown in step S100 again.

  On the other hand, when the total current value is equal to or greater than the first current value (S104: Yes), the determination unit 23 instructs the charge control unit 25 to stop charging the storage battery 17 together with the device ID included in the activation request. Instruct. The charge control unit 25 refers to the device table 210 in the storage unit 21 and acquires the duration of the inrush current associated with the device ID instructed from the determination unit 23. And the charge control part 25 transmits a charge stop request | requirement to the electrical storage apparatus 14 via the wired communication part 26 (S105).

  Next, the charge control unit 25 receives a charge stop response from the power storage device 14 (S106), and activates the device 16 corresponding to the device ID to the activation instruction unit 27 together with the device ID instructed from the determination unit 23. Instruct. The activation instruction unit 27 transmits an activation instruction via the access point 18 to the device 16 corresponding to the device ID instructed from the charging control unit 25 (S107). Then, the activation instruction unit 27 refers to the device table 210 in the storage unit 21 and changes the status associated with the device ID instructed from the charging control unit 25 to “operation” (S108).

  Next, the charge control unit 25 determines whether or not the duration of the inrush current acquired from the device table 210 has elapsed since the charge stop response was received from the power storage device 14 (S109). When the duration of the inrush current has elapsed after receiving the charge stop response (S109: Yes), the activation instruction unit 27 transmits a charge resumption request to the power storage device 14 via the wired communication unit 26 (S110). The determination unit 23 executes the process shown in step S100 again.

[Operation of power storage device 14]
FIG. 7 is a flowchart illustrating an example of the operation of the power storage device 14.

  First, the power storage device 14 sets 0 to the charge stop flag held in the internal memory (S200). And the electrical storage apparatus 14 determines whether the charge stop request | requirement was received from the control apparatus 20 (S201). When the charge stop request is received (S201: Yes), the power storage device 14 sets 1 to the charge stop flag held in the internal memory (S202), and executes the process shown in step S201 again.

  When the charge stop request has not been received (S201: No), the power storage device 14 determines whether or not a charge resumption request has been received from the control device 20 (S203). When the charge resumption request is received (S203: Yes), the power storage device 14 sets 0 to the charge stop flag held in the internal memory (S204), and executes the process shown in step S201 again.

  When the charge resumption request has not been received (S203: No), the power storage device 14 can supply the value of the current being supplied to the device 16 via the distribution board 15 based on the power generated by the power generation device 11. It is determined whether the current value is less than the current value obtained by subtracting a predetermined value from the current value (S205). When the value of the current being supplied to the device 16 via the distribution board 15 is less than the value of the current obtained by subtracting a predetermined value from the value of the current that can be supplied based on the power generated by the power generation device 11 (S205). : Yes), the power storage device 14 determines whether or not the storage battery 17 is being charged (S206).

  When the storage battery 17 is being charged (S206: Yes), the power storage device 14 determines whether or not 1 is set in the charge stop flag with reference to the charge stop flag held in the internal memory ( S207). When 1 is set to the charge stop flag (S207: Yes), the power storage device 14 stops charging the storage battery 17 (S208). And the electrical storage apparatus 14 transmits a charge stop response to the control apparatus 20 (S209), and performs the process shown to step S201 again. On the other hand, when the charge stop flag is set to 0 (S207: No), the power storage device 14 executes the process shown in step S201 again.

  When the storage battery 17 is not being charged (S206: No), the power storage device 14 refers to the charge stop flag held in the internal memory and determines whether or not 0 is set in the charge stop flag ( S210). When 0 is set in the charge stop flag (S210: Yes), the power storage device 14 starts charging the storage battery 17 (S211), and executes the process shown in step S201 again. On the other hand, when the charge stop flag is set to 1 (S210: No), the power storage device 14 executes the process shown in step S201 again.

  When the value of the current being supplied to the device 16 via the distribution board 15 is equal to or larger than the current value obtained by subtracting a predetermined value from the value of the current that can be supplied based on the power generated by the power generation device 11 (S205). : No), the power storage device 14 determines whether or not the storage battery 17 is being charged (S212). When the storage battery 17 is being charged (S212: Yes), the power storage device 14 stops charging the storage battery 17 (S213), and executes the process shown in step S201 again. On the other hand, when the storage battery 17 is not being charged (S212: No), the power storage device 14 executes the process shown in step S201 again.

[Hardware Configuration of Control Device 20]
FIG. 8 is a hardware configuration diagram illustrating an example of a computer 50 that realizes the functions of the control device 20. The computer 50 includes a central processing unit (CPU) 51, a random access memory (RAM) 52, a read only memory (ROM) 53, a wireless communication device 54, a wired communication interface (I / F) 55, and an input / output interface (I / F). ) 56 and a media interface (I / F) 57.

  The CPU 51 operates based on a program stored in the ROM 53 and controls each unit. The ROM 53 stores a boot program executed by the CPU 51 when the computer 50 is started up, a program depending on the hardware of the computer 50, and the like.

  The CPU 51 controls an output device such as a liquid crystal display device and an input device such as a touch panel and a keypad via the input / output interface 56. The CPU 51 acquires data from the input device via the input / output interface 56. Further, the CPU 51 outputs the generated data to the output device via the input / output interface 56.

  The wireless communication device 54 performs wireless communication with the access point 18 using a wireless communication method such as Bluetooth or wireless LAN. The wireless communicator 54 receives data from other devices via the access point 18 and sends the data to the CPU 51, and transmits the data generated by the CPU 51 to other devices via the access point 18. The wired communication interface 55 receives data from the power storage device 14 via the communication cable and sends the data to the CPU 51, and transmits the data generated by the CPU 51 to the power storage device 14 via the communication cable.

  The media interface 57 reads a program or data stored in the recording medium 58 and provides it to the CPU 51 via the RAM 52. The CPU 51 loads the program from the recording medium 58 onto the RAM 52 via the media interface 57 and executes the loaded program. The recording medium 58 is, for example, a magnetic recording medium or a semiconductor memory.

  The CPU 51 of the computer 50 executes a program loaded on the RAM 52 to thereby store the storage unit 21, the collection unit 22, the determination unit 23, the wireless communication unit 24, the charging control unit 25, the wired communication unit 26, and the activation instruction unit. 27 functions are realized. The RAM 52 or the ROM 53 stores data in the storage unit 21. The CPU 51 of the computer 50 reads these programs from the recording medium 58 and executes them, but as another example, these programs may be acquired from other devices via the access point 18, for example.

  The embodiment has been described above.

  As is clear from the above description, according to the power control system 1 of the present embodiment, it can be expected that the supply of power from the power generator 11 is stopped due to the inrush current generated by the activation of the device 16.

[Modification]
In addition, this invention is not limited to above-described embodiment, Many deformation | transformation are possible within the range of the summary.

  For example, in the above-described embodiment, the charging control unit 25 determines that the total current consumed in the device 16 connected to the distribution board 15 by the inrush current of the newly activated device 16 is the first current value. However, the present invention is not limited to this. For example, when the total value of the current consumed in the device 16 connected to the distribution board 15 exceeds the first current value due to the inrush current of the device 16 to be newly activated, the charging control unit 25 stores the storage battery. 17 is stopped, the discharge of the storage battery 17 is started, the current from the storage battery 17 is added to the current that can be supplied with the current power generation amount of the power generation device 11, and the device 16 connected to the distribution board 15 is added. You may make it supply. Thereby, it can be expected to further suppress the stop of the power supply from the power generation device 11 due to the inrush current generated by the activation of the device 16.

  Further, when the total value of the current consumed in the device 16 connected to the distribution board 15 exceeds the first current value due to the inrush current of the newly activated device 16, for example, The charging of the storage battery 17 is stopped, and the larger one of the current that can be supplied at the current power generation amount of the power generation device 11 and the current that can be supplied by discharging the storage battery 17 is connected to the distribution board 15. You may make it supply to the apparatus 16 made.

  Further, in the above-described embodiment, when the determination unit 23 receives an activation request from each device 16 via the access point 18, the inrush current value of the device 16 to be activated and the current consumption of the device 16 in operation. It is determined whether the total current value with the first value is equal to or greater than the first current value, but the present invention is not limited to this. For example, when receiving a start request from each device 16 via the access point 18, the determination unit 23 inquires the power storage device 14 whether or not the storage battery 17 is being charged, and starts when the storage battery 17 is being charged. It may be determined whether or not the total current value of the inrush current value of the device 16 to be operated and the current consumption value of the operating device 16 is equal to or greater than the first current value. Thereby, the control apparatus 20 can omit the process which instruct | indicates the charge stop to the electrical storage apparatus 14 repeatedly, when the storage battery 17 is not charging.

  In the above-described embodiment, using the activation request transmitted from each device 16 as a trigger, the control device 20 causes the inrush current of the device 16 that is the transmission source of the activation request and the consumption of the operating device 16 in a steady state. Although the charging of the storage battery 17 is stopped and the activation instruction is transmitted to the device 16 based on the current, the present invention is not limited to this. For example, in response to a user operation, the control device 20 identifies the device 16 to be activated, and the storage battery 17 is based on the inrush current of the identified device 16 and the current consumption in the steady state of the operating device 16. The charging may be stopped and the activation instruction may be transmitted to the device 16.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11 power generation device 14 power storage device 17 storage battery 20 control device 23 determination unit 25 charge control unit 27 start instruction unit

Claims (11)

When the first load is activated, whether the total current value of the inrush current of the first load and the consumption current in the steady state of the already operating second load is equal to or greater than the first current value A determination unit for determining whether or not;
When the total current value is greater than or equal to the first current value, the storage battery performs charging of the storage battery based on the power generated by the power generation device, and feeding of the power generated by the power generation device to the load A charge control unit for instructing the device to reduce the charge power of the storage battery;
An activation instructing unit that activates the first load after charging power of the storage battery is reduced when the total current value is equal to or greater than the first current value;
A control device comprising: For each load, it has a storage unit that stores inrush current, current consumption in a steady state, and information indicating whether it is in operation,
The determination unit
When an activation request is received from the first load, the inrush current of the first load and the current consumption in the steady state of the second load are extracted from the storage unit, and the extracted inrush current and steady state are extracted. The control device according to claim 1, wherein it is determined whether or not a total current value of current consumption in a state is equal to or greater than the first current value.   The control device according to claim 1, further comprising: a collecting unit that collects information indicating whether inrush current, current consumption in a steady state, and whether or not the device is operating for each load and stores the information in the storage unit. The storage unit stores information on the duration of inrush current for each load,
The charge controller is
When the total current value is equal to or greater than the first current value, referring to the storage unit, at least the duration of the inrush current of the first load after the first load is activated Until the first load and the second load that is already in operation are supplied to the first load and the second load that are already in operation. The control device according to claim 2, further instructing the power storage control device to supply. The storage unit stores information on the duration of inrush current for each load,
The charge controller is
When the total current value is equal to or greater than the first current value, referring to the storage unit, at least the duration of the inrush current of the first load after the first load is activated Until the first load and the current based on the power generated by the power generation device and the current based on the power discharged from the storage battery, whichever is larger, are in operation. The control device according to claim 2 or 3, further instructing the power storage control device to supply the second load. The first current value is
2. A value obtained by subtracting a current value obtained by combining a current value for charging the storage battery and a second current value from a current value that can be supplied based on electric power generated by the power generation device. The control device according to any one of 1 to 5. The determination unit
The control device according to any one of claims 1 to 6, wherein when the power storage device is charging the storage battery, it is determined whether the total current value is equal to or greater than the first current value. .   The control device according to claim 1, wherein the power generation device generates electric power using renewable energy. Computer
Whether or not the total current value of the inrush current of the first load and the consumption current in the steady state of the already operating second load is equal to or greater than a predetermined current value when the first load is activated A determination step of determining
When the total current value is equal to or greater than the predetermined current value, a power storage device that performs charging of the storage battery based on the power generated by the power generation device and power supply to the load of the power generated by the power generation device A charge control step of instructing to reduce the charge power of the storage battery;
An activation instruction step of activating the first load after the charge power of the storage battery is reduced when the total current value is equal to or greater than the predetermined current value;
Control method to execute. On the computer,
Whether or not the total current value of the inrush current of the first load and the consumption current in the steady state of the already operating second load is equal to or greater than a predetermined current value when the first load is activated A determination procedure for determining
When the total current value is equal to or greater than the predetermined current value, a power storage device that performs charging of the storage battery based on the power generated by the power generation device and power supply to the load of the power generated by the power generation device A charge control procedure for reducing the charge power of the storage battery;
An activation instruction procedure for activating the first load after the charge power of the storage battery is reduced when the total current value is equal to or greater than the predetermined current value;
A program that executes With power generation equipment;
A power storage device that performs charging of a storage battery based on the power generated by the power generation device and power supply to a load of power generated by the power generation device;
A control device for controlling the power storage device;
Comprising
The controller is
Whether or not the total current value of the inrush current of the first load and the consumption current in the steady state of the already operating second load is equal to or greater than a predetermined current value when the first load is activated A determination unit for determining
When the total current value is equal to or greater than the predetermined current value, charging the storage battery based on the power generated by the power generation device, and charging control for instructing the power storage device to reduce the charging power of the storage battery Part;
An activation instructing unit that activates the first load after charging power of the storage battery is reduced when the total current value is equal to or greater than the predetermined current value;
A power control system comprising:

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