Control system and distribution board system

Abstract

To restrain decentralization of functions.SOLUTION: A control system 1 includes a measurement processing unit 101 and a charging control unit 102. The measurement processing unit 101 measures power in a distribution board 20 that supplies power to a load LD. The charging control unit 102 controls power supply to an EV battery 61 which is the load LD. The measurement processing unit 101 and the charging control unit 102 are housed in a casing 200 included in the distribution board 20. In accordance with a measurement result obtained by the measurement processing unit 101, the charging control unit 102 controls power supply from the distribution board 20 to an EV charger 50 to which the EV battery 61 is electrically connected.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates generally to a control system and a distribution board system, and more particularly to a control system and a distribution board system that controls charging of an electric vehicle (EV). [Background technology]

[0002] Patent Document 1 describes a green electricity generating device that includes a storage battery that stores electricity generated by a solar power generating device and / or a wind power generating device, and a distribution board that checks the electrical capacity.

[0003] Moreover, in Patent Document 1, the storage battery is connected to an electric vehicle (EV) via a V2H (Vehicle to Home) device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3233774 Summary of the Invention [Problem to be solved by the invention]

[0005] In the electric vehicle of Patent Document 1, power is charged by supplying power from a storage battery. That is, as charging control for the EV, control is performed as to whether or not to supply power from the storage battery. In order to control the charging of the EV, it is necessary to measure the remaining capacity of the storage battery. In order to measure the remaining capacity of the storage battery, a measuring device needs to be provided in the storage battery. Therefore, the function of controlling charging to the EV and the function of checking the electric capacity performed by the distribution board are separated, which causes a problem of the system becoming complicated.

[0006] The present disclosure has been made in consideration of the above-mentioned problems, and aims to provide a control system and a distribution board system that suppress the decentralization of functions. [Means for solving the problem]

[0007] A control system according to an aspect of the present disclosure includes a measurement processing unit and a charging control unit. The measurement processing unit measures power in a distribution board that supplies power to a load. The charging control unit controls the supply of power to an EV battery serving as the load. The measurement processing unit and the charging control unit are housed in a housing of the distribution board. The charging control unit controls the supply of power from the distribution board to an EV charger to which the EV battery is electrically connected according to a measurement result of the measurement processing unit.

[0008] A distribution board system according to one aspect of the present disclosure includes the control system and the distribution board. Effect of the Invention

[0009] According to the present disclosure, it is possible to suppress the decentralization of functions. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a block diagram showing a configuration of a control device as a control system and a distribution board system including the control device. [Diagram 2] FIG. 2 is a front view of a housing of a distribution board provided in the distribution board system. [Diagram 3] FIG. 3 is a flow chart showing the operation of the control device. [Figure 4] FIG. 4 is a block diagram showing a configuration of a distribution board system according to the first modification. [Diagram 5] FIG. 5 is a block diagram showing a configuration of a distribution board system according to the second modification. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The embodiments and modifications described below are merely examples of the present disclosure, and the present disclosure is not limited to the embodiments and modifications. Various modifications other than the following embodiments and modifications are possible according to the design, etc., as long as they do not deviate from the technical idea of ​​the present disclosure.

[0012] (Embodiment) Hereinafter, a control system 1 according to the present embodiment and a distribution board system 2 including the control system 1 will be described with reference to FIGS. 1 to 3. FIG.

[0013] (1) Overview As shown in Fig. 1, the control device 10 as the control system 1 according to this embodiment includes a measurement processing unit 101 and a charging control unit 102. The measurement processing unit 101 measures the power in the distribution board 20 that supplies power to the load LD. The charging control unit 102 controls the power supply to the EV battery 61 as the load LD. The measurement processing unit 101 and the charging control unit 102 are housed in a housing 200 (see Fig. 2) of the distribution board 20. The charging control unit 102 controls the power supply from the distribution board 20 to the EV charger 50 to which the EV battery 61 is electrically connected according to the measurement result of the measurement processing unit 101. Here, the EV battery 61 is included in the EV 60 (see Fig. 1).

[0014] This configuration makes it possible to prevent the functions from being distributed.

[0015] (2) Composition As shown in FIG. 1, a distribution board system 2 of the present embodiment includes a control device 10 as a control system 1, and a distribution board 20.

[0016] The distribution board 20 is installed in consumer facilities such as detached houses, apartment buildings, factories, stores, offices, office buildings, commercial buildings, stadiums, hospitals, and schools. The distribution board 20 distributes commercial power (AC power) supplied from a commercial power system PS to multiple loads LD in the consumer facilities. In this embodiment, the distribution board 20 is installed in a residence such as a detached house or an apartment building.

[0017] As shown in Fig. 2, the distribution board 20 includes a rectangular box-shaped housing 200. The housing 200 houses the main breaker 30, a plurality of branch breakers 40, and the control device 10. A rectangular opening 200a is formed in the front of the housing 200, and a cover (not shown) is attached to the opening 200a so as to be freely opened and closed. The cover is movable between a closed position that covers the opening 200a and an open position that exposes the opening 200a to the front. The housing 200 is attached to, for example, a wall or a pillar of a building.

[0018] The housing 200 accommodates a main breaker 30, a plurality of branch breakers 40, and a control device 10. The main breaker 30, the plurality of branch breakers 40, and the control device 10 are attached to a bottom plate (a plate member facing the opening 200a) of the housing 200 directly or via a mounting member or the like. Note that Fig. 2 shows an example of the arrangement of the main breaker 30, the plurality of branch breakers 40, and the control device 10 inside the housing 200. Note that this arrangement can be changed as appropriate.

[0019] The power system PS is connected to a main breaker 30 via a main electric line L1. Commercial power supplied from the power system PS is supplied from the main electric line L1 to a load LD outside the housing 200 via the main breaker 30 and the branch breakers 40.

[0020] A primary terminal of the main breaker 30 is connected to the main electric circuit L1. A secondary terminal of the main breaker 30 is connected to the main electric circuit L1 inside the housing 200. The main electric circuit L1 is composed of a bus bar, an electric wire, and the like.

[0021] A main electric circuit L1 connected to a secondary terminal of the main breaker 30 branches into a plurality of branch electric circuits L2 within the housing 200. A plurality of branch breakers 40 are respectively connected to the plurality of branch electric circuits L2. The branch breakers 40 connect and cut off the branch electric circuit L2 to which the branch breaker 40 is connected. Specifically, a primary terminal of the branch breaker 40 is connected to the branch electric circuit L2 branched from the main electric circuit L1. A secondary terminal of the branch breaker 40 is connected to the branch electric circuit L2 drawn out to the outside of the housing 200. A load LD or a distributed power system 3 of a customer facility is connected to the branch electric circuit L2 drawn out to the outside of the housing 200. The branch electric circuit L2 is composed of a bus bar, an electric wire, etc.

[0022] The load LD includes electric devices directly connected to the branch electric circuit L2, and electric devices indirectly connected to the branch electric circuit L2 via an outlet connected to the branch electric circuit L2. The electric devices include, for example, an EV battery (hereinafter, EV battery) 61, a heater, a cooker, a light, and an air conditioner.

[0023] As described above, commercial power is supplied to each of the multiple loads LD via the main electric line L1, the main breaker 30, the branch electric line L2, the branch breaker 40, and the branch electric line L2.

[0024] In this embodiment, an EV battery 61 as a load LD is electrically connected to the branch breaker 40a of the multiple branch breakers 40 via an EV charger 50. A load LD other than the EV battery 61, such as a heating appliance, a cooking appliance, a lighting appliance, and an air conditioner, is electrically connected to the branch breakers 40b and 40c of the multiple branch breakers 40. A distributed power system 3 is electrically connected to the branch breaker 40d of the multiple branch breakers 40. That is, the distribution board 20 is electrically connected to the distributed power system 3. In the following description, the branch breaker 40a may be referred to as a charging branch breaker 40a.

[0025] (2.1) Main breaker The main breaker 30 is supplied with power from the outside (here, the power system PS). The main breaker 30 includes a contact portion 30a electrically connected between a primary terminal and a secondary terminal of the main breaker 30.

[0026] In this embodiment, the contact unit 30a of the main breaker 30 is a mechanical contact having a fixed contact and a movable contact. The main breaker 30 has a handle 30b on the front for turning the contact unit 30a on or off. When the handle 30b is turned on, the contact unit 30a is turned on and the main breaker 30 conducts the main electric circuit L1. When the handle 30b is turned off, the contact unit 30a is turned off and the main breaker 30 interrupts the main electric circuit L1.

[0027] (2.2) Branch breaker As shown in FIG. 1, each of the branch breakers 40 includes a switch SW, a control unit 41, and an operation unit .

[0028] Of the multiple branch breakers 40, the branch breaker 40d is electrically connected to the distributed power system 3. The branch breaker 40d is supplied with power (output power) output from the distributed power system 3. Of the multiple branch breakers 40, the branch breakers 40a to 40c are supplied with power from at least one of the main breaker 30 and the branch breaker 40d, and supply the power to an electrically connected load LD.

[0029] The switch SW switches between electrical connection and non-connection between the main breaker 30 and the load LD. The switch SW is a mechanical relay, for example a power relay, configured to be able to switch between an on state and an off state in response to a signal. In this embodiment, the switch SW is a normally-off type mechanical relay, and is turned off when the voltage or current of the drive signal becomes zero. The switch SW is connected between the primary terminal and the secondary terminal of the branch breaker 40. Furthermore, the switch SW is connected in series with a switch unit (not shown) that cuts off the branch electric circuit L2 when a short circuit and an overcurrent occur in the branch electric circuit L2. When the switch SW is turned on, the branch electric circuit L2 is conductive, and when the switch SW is turned off, the branch electric circuit L2 is cut off. The switch SW receives a drive signal from the control unit 41, and is switched on and off by the drive signal. If the magnitude of the voltage or current of the drive signal is the level of the drive signal, when the level of the drive signal is equal to or higher than a threshold value, the switch SW is turned on, and when the level of the drive signal is lower than the threshold value, the switch SW is turned off.

[0030] The operating power source of the control unit 41 is commercial power (external power) supplied from the branch electric circuit L2 on the primary side of the branch breaker 40, or power supplied from the distributed power system 3.

[0031] The control unit 41 drives the switch SW to turn on and off in accordance with the operation of the operation unit 42 and instructions from the control device 10. That is, the control unit 41 controls the switch SW to be switchable between an off state in which the branch electric circuit L2 is interrupted and an on state in which the branch electric circuit L2 is conductive. In other words, the control unit 41 switches between an on state in which an electrical connection is established between the branch breaker 40 including the control unit 41 and the load LD, and an off state in which no electrical connection is established. Specifically, the control unit 41 outputs a drive signal to the switch SW, and drives the switch SW to turn on and off by the drive signal. For example, the control unit 41 turns on the switch SW by setting the drive signal to an H level (e.g., 10 V). The control unit 41 turns off the switch SW by setting the drive signal to an L level (e.g., 0 V).

[0032] The operation unit 42 is a button or the like for manually switching the switch SW on or off, and is provided on the front surface of the branch breaker 40 (see FIG. 2). The control unit 41 outputs a drive signal in response to the operation of the operation unit 42. When the operation unit 42 is turned on, the control unit 41 sets the drive signal to H level to turn on the switch SW. When the operation unit 42 is turned off, the control unit 41 sets the drive signal to L level to turn off the switch SW. Note that in this embodiment, the operation unit 42 is a push-type button switch that performs a momentary operation, but the operation unit 42 may have another structure.

[0033] The control unit 41 also communicates with the control device 10 via the communication line W1, and can control the on / off state of the switch SW in response to an instruction signal from the control device 10. The control unit 41 outputs a drive signal in response to the instruction signal from the control device 10. When receiving an on instruction signal from the control device 10, the control unit 41 sets the drive signal to H level to turn on the switch SW. When receiving an off instruction signal from the control device 10, the control unit 41 sets the drive signal to L level to turn off the switch SW. The control unit 41 also outputs a monitor signal indicating the state (on state or off state) of the switch SW to the control device 10.

[0034] (2.3) Distributed power systems As shown in FIG. 1, the distributed power system 3 is electrically connected to the branch breaker 40d.

[0035] As shown in FIG. 1, the distributed power supply system 3 includes a power generation facility 71 as a distributed power supply 70 that generates power from renewable energy, and a power conditioning system (PCS) 72.

[0036] The power generation facility 71 is, for example, a solar power generation facility, and generates electric energy using sunlight, which is a renewable energy source, as an energy source.

[0037] The PCS 72 has a converter and an inverter. The converter is provided in a path connecting the inverter and the power generation equipment 71. The converter has a function of a DC / DC converter that converts input power into power of a predetermined voltage value and outputs it. The converter outputs electric energy (generated power) output from the power generation equipment 71 to the inverter via the DC / DC converter. The inverter is electrically connected to the branch breaker 40d. The inverter is connected to the converter. The inverter converts DC power into AC power and outputs it to the branch breaker 40d.

[0038] The power generation facility 71 is not limited to a solar power generation facility. The power generation facility 71 may be a hydroelectric power generation facility or a wind power generation facility. Alternatively, the power generation facility 71 may be configured to include two or more facilities selected from a solar power generation facility, a hydroelectric power generation facility, and a wind power generation facility. In other words, the power generation facility 71 is configured to include at least one facility that generates electric energy (generated power) from renewable energy.

[0039] (2.4) Control device The control device 10 measures the power in the distribution board 20 and controls each of the multiple branch breakers 40. The control device 10 measures the external power (power) input from the power system PS to a main breaker 30 included in the distribution board 20. The control device 10 measures the output power output from the distributed power system 3 based on the generated power generated by a power generation facility 71 serving as a distributed power source 70. Furthermore, the control device 10 measures the power output to the EV charger 50 (EV charging power).

[0040] The control device 10 outputs an ON instruction signal to the branch breaker 40, thereby setting the drive signal of the branch breaker 40 to H level and turning on the switch SW. The control device 10 outputs an OFF instruction signal to the branch breaker 40, thereby setting the drive signal of the branch breaker 40 to L level and turning off the switch SW. In addition, the branch breaker 40 outputs a monitoring signal indicating the state (ON state or OFF state) of the switch SW of the branch breaker 40 to the control device 10. The control device 10 can monitor the state of the branch breaker 40 based on the monitoring signal.

[0041] As shown in FIG. 1, the control device 10 includes a storage unit 11 and a control unit 12.

[0042] The control device 10 has, for example, a computer system having a processor and a memory. The processor executes a program stored in the memory, causing the computer system to function as the control unit 12. The program executed by the processor is pre-recorded in the memory of the computer system here, but may be provided by being recorded on a recording medium such as a memory card, or may be provided via a telecommunications line such as the Internet.

[0043] The storage unit 11 is configured with a device selected from a read only memory (ROM), a random access memory (RAM), an electrically erasable programmable read only memory (EEPROM), and the like.

[0044] The storage unit 11 stores the value of the amount of power required when charging the EV battery 61 (a charging reference value). Furthermore, the storage unit 11 stores status information for each branch breaker 40. The status information indicates whether the switch SW is in an on state or an off state based on a monitoring signal output from the branch breaker 40.

[0045] 1, the control unit 12 includes a measurement processing unit 101 and a charging control unit 102. As described above, the control device 10 is accommodated in the housing 200 of the distribution board 20. That is, the measurement processing unit 101 and the charging control unit 102 are accommodated in the housing 200 of the distribution board 20.

[0046] The measurement processing unit 101 measures the power in the distribution board 20 that supplies power to an electrically connected load LD.

[0047] The measurement processing unit 101 measures the external power (electric power) input from the power system PS to the main breaker 30 included in the distribution board 20. More specifically, the measurement processing unit 101 receives a first measurement signal output from a sensor 4 that is provided on the primary side of the main breaker 30 and measures the external power, and performs a predetermined process on the received first measurement signal to obtain a power value of the external power (external power value) input from the power system PS. Note that the sensor 4 is configured to be provided on the primary side of the main breaker 30, but is not limited to this configuration. The sensor 4 may be provided on the secondary side of the main breaker 30.

[0048] The measurement processing unit 101 measures the output power output from the distributed power system 3 based on the power generated by the power generation facility 71. The measurement processing unit 101 receives a second measurement signal output from a sensor 5 provided on the secondary side of the branch breaker 40d and measuring the output power. That is, the measurement processing unit 101 receives the second measurement signal output from a sensor 5 provided on a branch electric circuit L3 between the branch breaker 40d and the distributed power system 3. The measurement processing unit 101 performs a predetermined process on the second measurement signal received from the sensor 5 to obtain a power value (output power value) of the output power output from the distributed power system 3. Note that the sensor 5 is configured to be provided on the secondary side of the branch breaker 40d, but is not limited to this configuration. The sensor 5 may be provided on the primary side of the branch breaker 40d.

[0049] Furthermore, the measurement processing unit 101 measures the power (EV charging power) output to the EV charger 50. The measurement processing unit 101 receives a third measurement signal output from a sensor 6 provided on the secondary side of the branch breaker 40a and measuring the EV charging power output to the EV charger 50. That is, the measurement processing unit 101 receives the third measurement signal output from a sensor 6 provided on the branch electric circuit L21 between the branch breaker 40a and the EV charger 50. The measurement processing unit 101 performs a predetermined process on the third measurement signal received from the sensor 6 to obtain the power value of the EV charging power. This allows the control device 10 to detect whether charging to the EV battery 61 is completed or whether the EV charger 50 is connected to the EV battery 61. The sensor 6 is configured to be provided on the secondary side of the branch breaker 40a, but is not limited to this configuration. The sensor 6 may be provided on the primary side of the branch breaker 40a.

[0050] The charging control unit 102 controls the power supply to the EV battery 61 as the load LD via the EV charger 50. The charging control unit 102 controls the power supply from the distribution board 20 to the EV battery 61 according to the measurement result of the measurement processing unit 101. That is, the charging control unit 102 controls the power supply from the distribution board 20 to the EV charger 50 to which the EV battery 61 is electrically connected according to the measurement result of the measurement processing unit 101. Specifically, the charging control unit 102 controls the conduction and interruption of an electric path (the branch electric path L21 shown in FIG. 1) between the EV charger 50 and the charging branch breaker 40a electrically connected to the EV charger 50 among the multiple branch breakers 40 provided in the distribution board 20 according to the measurement result. Here, the branch electric path L21 is an electric path including the branch electric path L2, and is an electric path from the primary side terminal of the charging branch breaker 40a to the EV charger 50. That is, the switch SW provided in the charging branch breaker 40a is included in the branch electric path L21. The charging control unit 102 changes the state of the switch SW to control the conduction and cutoff of the charging branch breaker 40a, thereby controlling the conduction and cutoff of the branch electric circuit L21.

[0051] The charging control unit 102 controls the conduction and interruption of an electric circuit (branch electric circuit L21) between the EV charger 50 and a charging branch breaker 40a, which is one of the multiple branch breakers 40 provided in the distribution board 20 and is electrically connected to the EV charger 50, depending on the power value of the external power, which is the measurement result.

[0052] When the charging branch breaker 40a is in an off state, the charging control unit 102 controls the charging branch breaker 40a so that the electric path between the charging branch breaker 40a and the EV charger 50 is interrupted when the power value of the external power becomes equal to or greater than a first reference value (reference value) that is determined in advance. When the state information of the charging branch breaker 40a stored in the storage unit 11 indicates an off state, the charging control unit 102 outputs an off instruction signal to the charging branch breaker 40a when the power value of the external power is equal to or greater than the first reference value. That is, the charging control unit 102 controls the charging branch breaker 40a to continue the off state. When the state information of the charging branch breaker 40a stored in the storage unit 11 indicates an off state, the charging control unit 102 outputs an on instruction signal to the charging branch breaker 40a when the power value of the external power is not equal to or greater than the first reference value. That is, the charging control unit 102 controls the charging branch breaker 40a to change the state from the off state to the on state.

[0053] Here, the first reference value is a value based on the peak value determined by the contracted power and is a value lower than the peak value. For example, the reference value is a value obtained by subtracting the charging reference value stored in the storage unit 11 from the peak value. Note that the first reference value being a value obtained by subtracting the charging reference value is merely an example, and is not intended to be limited to this value.

[0054] When the charging branch breaker 40a is in an on state, the charging control unit 102 controls the charging branch breaker 40a so that the electric path between the charging branch breaker 40a and the EV charger 50 is interrupted when the power value of the external power becomes equal to or greater than a second reference value (reference value) that is determined in advance. When the state information of the charging branch breaker 40a stored in the storage unit 11 indicates an on state, the charging control unit 102 outputs an off instruction signal to the charging branch breaker 40a when the power value of the external power is equal to or greater than the second reference value. That is, the charging control unit 102 controls the charging branch breaker 40a so as to change the state from the on state to the off state. When the state information of the charging branch breaker 40a stored in the storage unit 11 indicates an on state, the charging control unit 102 outputs an on instruction signal to the charging branch breaker 40a when the power value of the external power is not equal to or greater than the second reference value. That is, the charging control unit 102 controls the charging branch breaker 40a so as to maintain the on state.

[0055] Here, the second reference value is a value larger than the first reference value and is a value based on the peak value set in the contract power but lower than the peak value. For example, the second reference value is a value obtained by multiplying the peak value by a value less than 1.

[0056] Furthermore, the charging control unit 102 controls the conduction and interruption of an electric path between the EV charger 50 and the charging branch breaker 40a, which is one of the multiple branch breakers 40 provided in the distribution board 20 and is electrically connected to the EV charger 50, according to the power value of the output power, which is the measurement result. When the power value of the output power becomes equal to or greater than a predetermined value, the charging control unit 102 controls the charging branch breaker 40a so that the electric path between the charging branch breaker 40a and the EV charger 50 is conductive. When the power value of the output power becomes equal to or greater than a predetermined value, the charging control unit 102 outputs an ON instruction signal to the charging branch breaker 40a. Here, the predetermined value is, for example, a charging reference value stored in the storage unit 11.

[0057] In this embodiment, when the power value of the output power is equal to or greater than a predetermined value, the charging control unit 102 controls the charging branch breaker 40a so that the electrical path between the charging branch breaker 40a and the EV charger 50 is conductive, regardless of the power value of the external power. When the power value of the output power is less than the predetermined value, the charging control unit 102 controls the charging branch breaker 40a according to the power value of the external power. Specifically, when the power value of the output power is less than the predetermined value and the power value of the external power is equal to or greater than a reference value, the charging control unit 102 controls the charging branch breaker 40a so that the electrical path between the charging branch breaker 40a and the EV charger 50 is interrupted. When the power value of the external power is less than the reference value, the charging control unit 102 controls the charging branch breaker 40a so that the electrical path between the charging branch breaker 40a and the EV charger 50 is conductive, even when the power value of the output power is less than the predetermined value.

[0058] (3) Operation Here, the operation of the control device 10 will be described with reference to FIG.

[0059] The measurement processing unit 101 performs a measurement process (step S1). The measurement processing unit 101 measures the power in the distribution board 20 that supplies power to the electrically connected load LD. Specifically, the measurement processing unit 101 measures the external power (power) input from the power system PS to the main breaker 30 provided in the distribution board 20. Furthermore, the measurement processing unit 101 measures the output power output from the distributed power system 3 based on the generated power generated by the power generation facility 71.

[0060] The charging control unit 102 determines whether or not the power value of the output power, which is the measurement result, is equal to or greater than a predetermined value (step S2).

[0061] When it is determined that the power value of the output power is equal to or greater than the predetermined value ("Yes" in step S2), the charging control unit 102 performs a continuity process (step S7). Specifically, the charging control unit 102 controls the charging branch breaker 40a so that the electric path (branch electric path L21) between the charging branch breaker 40a and the EV charger 50 is conductive.

[0062] If it is determined that the power value of the output power is not equal to or greater than the predetermined value, i.e., that the output power is less than the predetermined value ("No" in step S2), the charging control unit 102 determines whether the charging branch breaker 40a is in the on state (step S3).

[0063] When it is determined that the charging branch breaker 40a is not in the on state, that is, in the off state ("No" in step S3), the charging control unit 102 determines whether the external power is equal to or greater than a first reference value (step S4).

[0064] When it is determined that the external power is equal to or greater than the first reference value ("Yes" in step S4), the charging control unit 102 performs a cutoff process (step S6). Specifically, the charging control unit 102 controls the charging branch breaker 40a to cut off the electric path (branch electric path L21) between the charging branch breaker 40a and the EV charger 50.

[0065] When it is determined that the power value of the external power is not equal to or greater than the first reference value, that is, the external power is less than the first reference value ("No" in step S4), the charging control unit 102 performs a conduction process (step S7).

[0066] When it is determined that the charging branch breaker 40a is in the on state ("Yes" in step S3), the charging control unit 102 determines whether or not the external power is equal to or greater than a second reference value (step S5).

[0067] When it is determined that the external power is equal to or greater than the second reference value ("Yes" in step S5), the charging control unit 102 performs a cutoff process (step S6).

[0068] When it is determined that the power value of the external power is not equal to or greater than the second reference value, that is, the external power is less than the second reference value ("No" in step S5), the charging control unit 102 performs a conduction process (step S7).

[0069] (4) Advantages As described above, the control system 1 according to this embodiment includes the measurement processing unit 101 and the charging control unit 102. The measurement processing unit 101 measures the power in the distribution board 20 that supplies power to the load LD. The charging control unit 102 controls the power supply to the EV battery 61 serving as the load LD. The measurement processing unit 101 and the charging control unit 102 are housed in a housing 200 of the distribution board 20. The charging control unit 102 controls the supply of power from the distribution board 20 to the EV charger 50 to which the EV battery 61 is electrically connected, according to the measurement result of the measurement processing unit 101.

[0070] According to this configuration, the measurement processing unit 101 and the charging control unit 102 are housed in the housing 200 of the distribution board 20, so that the distribution of functions can be suppressed.

[0071] (5) Variations The following are examples of modified examples. The modified examples described below can be applied in appropriate combination with the above-described embodiment.

[0072] (5.1) Variation 1 A plurality of EV batteries 61 may be electrically connected to the distribution board 20. The following mainly describes the differences from the embodiment. The same components as those in the first embodiment are given the same reference numerals, and the description will be omitted as appropriate.

[0073] In the first modification, the distribution board system 2 includes a control device 10A as the control system 1, and a distribution board 20.

[0074] In the first modification, the multiple branch breakers 40 included in the distribution board 20 include a first charging branch breaker 40a and a second charging branch breaker 40b. The first charging branch breaker 40a is electrically connected via a first EV battery 61a as an EV battery 61 included in a first EV 60a as an EV 60. The second charging branch breaker 40b is electrically connected to a second EV battery 61b as an EV battery 61 included in a second EV 60b as an EV 60. Specifically, the first charging branch breaker 40a is electrically connected to the first EV battery 61a via a first EV charger 50a as an EV charger 50. The second charging branch breaker 40b is electrically connected to the second EV battery 61b via a second EV charger 50b as an EV charger 50.

[0075] As shown in FIG. 4, the control device 10A serving as the control system 1 includes a storage unit 11 and a control unit 12A.

[0076] The control device 10A has, for example, a computer system having a processor and a memory. The processor executes a program stored in the memory, causing the computer system to function as the control unit 12A. The program executed by the processor is pre-recorded in the memory of the computer system here, but may be provided by being recorded on a recording medium such as a memory card, or may be provided via a telecommunications line such as the Internet.

[0077] The storage unit 11 stores a charging reference value for each of the EV batteries 61.

[0078] 4, the control unit 12A includes a measurement processing unit 101 and a charging control unit 102A. The control device 10A is accommodated in a housing 200 of the distribution board 20. That is, the measurement processing unit 101 and the charging control unit 102A are accommodated in the housing 200 of the distribution board 20.

[0079] The charging control unit 102A controls the power supply to the first EV battery 61a and the second EV battery 61b. The charging control unit 102A controls the power supply from the distribution board 20 to the first EV battery 61a and the second EV battery 61b according to the measurement results of the measurement processing unit 101. In other words, the charging control unit 102A controls the power supply from the distribution board 20 to the first EV charger 50a and the second EV charger 50b according to the measurement results of the measurement processing unit 101.

[0080] The charging control unit 102A controls the conduction and interruption of the first electric circuit (branch electric circuit L21) and the second electric circuit (branch electric circuit L22) according to the power value of the external power. Furthermore, the charging control unit 102A controls the conduction and interruption of the first electric circuit and the second electric circuit according to the power value of the output power. Here, the first electric circuit is the electric circuit between the first EV charger 50a and the first charging branch breaker 40a electrically connected to the first EV charger 50a. The second electric circuit is the electric circuit between the second EV charger 50b and the second EV charger 50b.

[0081] Here, the branch electric circuit L21, which is an electric circuit between the first charging branch breaker 40a and the first EV charger 50a, is an electric circuit included in the branch electric circuit L2, and is an electric circuit from the primary side terminal of the first charging branch breaker 40a to the first EV charger 50a. That is, the switch SW of the first charging branch breaker 40a is included in the branch electric circuit L21. Also, the branch electric circuit L22, which is an electric circuit between the second charging branch breaker 40b and the second EV charger 50b, is an electric circuit included in the branch electric circuit L2, and is an electric circuit from the primary side terminal of the second charging branch breaker 40b to the second EV charger 50b. That is, the switch SW of the second charging branch breaker 40b is included in the branch electric circuit L22.

[0082] The charging control unit 102A controls the first charging branch breaker 40a and the second charging branch breaker 40b in accordance with the measurement result of the measurement processing unit 101 so that the first conduction period during which the first electric circuit is conductive and the second conduction period during which the second electric circuit is conductive do not overlap. For example, when the charging control unit 102A can supply power to one of the first EV battery 61a and the second EV battery 61b using the output power, the charging control unit 102A controls the first charging branch breaker 40a and the second charging branch breaker 40b so that the first conduction period and the second conduction period do not overlap. Alternatively, when the charging control unit 102A can supply power to one of the first EV battery 61a and the second EV battery 61b using the amount of power that is the difference between the power value and the peak value of the external power, the charging control unit 102A controls the first charging branch breaker 40a and the second charging branch breaker 40b so that the first conduction period and the second conduction period do not overlap. This allows the charging control unit 102A to control the first EV battery 61a and the second EV battery 61b in rotation.

[0083] Furthermore, when the charging control unit 102A can supply power to both the first EV battery 61a and the second EV battery 61b using the output power, the charging control unit 102A controls the first charging branch breaker 40a and the second charging branch breaker 40b so that both the first electric circuit and the second electric circuit are conductive. Alternatively, when the charging control unit 102A can supply power to both the first EV battery 61a and the second EV battery 61b using an amount of power that is the difference between the power value and the peak value of the external power, the charging control unit 102A controls the first charging branch breaker 40a and the second charging branch breaker 40b so that both the first electric circuit and the second electric circuit are conductive.

[0084] Furthermore, when the charging control unit 102A is unable to supply power to either the first EV battery 61a or the second EV battery 61b using the output power, it controls the first charging branch breaker 40a and the second charging branch breaker 40b to cut off both the first and second electric circuits. Alternatively, when the charging control unit 102A is unable to supply power to either the first EV battery 61a or the second EV battery 61b using the amount of power that is the difference between the power value and the peak value of the external power, it controls the first charging branch breaker 40a and the second charging branch breaker 40b to cut off both the first and second electric circuits.

[0085] (5.2) Variation 2 The control system 1 may have a function of communicating with an external device. The following mainly describes the differences from the embodiment. The same components as those in the first embodiment are given the same reference numerals, and the description will be omitted as appropriate.

[0086] 5, the distribution board system 2 includes a control device 10B as a control system 1 and a distribution board 20. The control device 10B is configured to be capable of communicating with a server 80 as an external device via a network NT1 such as the Internet.

[0087] The control device 10B as the control system 1 includes a storage unit 11, a control unit 12B, and a communication unit 13, as shown in FIG.

[0088] The control device 10B has, for example, a computer system having a processor and a memory. The processor executes a program stored in the memory, causing the computer system to function as the control unit 12B. The program executed by the processor is pre-recorded in the memory of the computer system here, but may be provided by being recorded on a recording medium such as a memory card, or may be provided via a telecommunications line such as the Internet.

[0089] The communication unit 13 has a communication interface for communicating with the server 80. That is, the communication unit 13 is configured to be able to communicate with the server 80 via the network NT1.

[0090] 4, the control unit 12B includes a measurement processing unit 101, a charging control unit 102, and a notification unit 103. The control device 10B is accommodated in a housing 200 of the distribution board 20. That is, the measurement processing unit 101 and the charging control unit 102 are accommodated in the housing 200 of the distribution board 20.

[0091] The notification unit 103 notifies the server 80 of control information related to the control performed by the charging control unit 102. The notification unit 103 transmits the control information to the server 80 via the communication unit 13. When the charging control unit 102 controls the charging branch breaker 40a to cut off the branch electric circuit L21, the notification unit 103 notifies the server 80 of control information indicating that the branch electric circuit L21 is cut off, that is, that the charging branch breaker 40a is in an OFF state. When the charging control unit 102 controls the charging branch breaker 40a to make the branch electric circuit L21 conductive, the notification unit 103 notifies the server 80 of control information indicating that the branch electric circuit L21 is conductive, that is, that the charging branch breaker 40a is in an ON state.

[0092] The server 80 is configured to be able to communicate with the control device 10B and the information terminal 81 via the network NT1. Here, the information terminal 81 is, for example, a smartphone, a tablet terminal, or a personal computer. The information terminal 81 is used by a resident of a house (consumer facility) in which the distribution board 20 is installed.

[0093] The server 80 has, for example, a computer system having a processor and a memory. The processor executes a program stored in the memory, causing the computer system to realize the functions of the server 80. The program executed by the processor is pre-recorded in the memory of the computer system here, but may be provided by being recorded on a recording medium such as a memory card, or may be provided via a telecommunications line such as the Internet.

[0094] When the server 80 receives the control information from the control device 10B, it transmits the received control information to the information terminal 81 via the network NT1. The server 80 may transmit the control information to the information terminal 81 by push notification, or may transmit the control information to the information terminal 81 when a request for transmission of the control information is received from the information terminal 81.

[0095] When the information terminal 81 receives the control information from the server 80, the information terminal 81 displays the received control information on a display unit that the information terminal 81 has.

[0096] The control device 10B may transmit the control information to the information terminal 81 via the network NT1. The server 80 may display the control information on a display unit that the server 80 includes.

[0097] (5.3) Variation 3 The charging control unit 102 may further control the charging branch breaker 40a so as to make the branch electric circuit L21 between the charging branch breaker 40a and the EV charger 50 conductive for a preset period.

[0098] This enables charging of the EV battery 61 via the EV charger 50 under timer control. Therefore, for example, it becomes possible to charge the EV battery 61 during times when electricity rates are low.

[0099] (5.4) Variation 4 The charging control unit 102 may control the charging branch breaker 40a using only the power value of the external power as the measurement result.

[0100] In the control device 10 of the fourth modification, step S2 is omitted in the flow chart shown in Fig. 3. When the measurement processing unit measures the external power in step S1, step S3 is executed. Then, depending on the result of the determination in step S3, either step S4 or step S5 is executed.

[0101] (5.5) Variation 5 The charging control unit 102 may control the charging branch breaker 40a using only the power value of the output power as the measurement result.

[0102] In the control device 10 of the fifth modification, steps S3 to S5 are omitted from the flow chart shown in Fig. 3. When the measurement processing unit measures the external power in step S1, step S2 is executed. Then, depending on the result of the determination in step S2, either step S6 or step S7 is executed.

[0103] (5.6) Variation 6 The control device 10 may externally acquire weather information related to a weather forecast for an area including the house in which the distribution board 20 is installed, and control the charging branch breaker 40a based on the acquired weather information.

[0104] For example, if solar radiation is predicted during the day based on weather information, the charging control unit 102 may control the charging branch breaker 40a during the day using only the power value of the output power as the measurement result.

[0105] Furthermore, when it is predicted based on weather information that there will be no sunlight during the day due to rain or the like, the charging control unit 102 may control the charging branch breaker 40a using only the power value of the external power as the measurement result.

[0106] (5.7) Variation 7 The distributed power supply system 3 may include a power storage facility such as a storage battery as the distributed power supply 70.

[0107] In the seventh modification, the measurement processing unit 101 measures the output power output from the distributed power system 3 based on the power output from the power storage facility. The charging control unit 102 controls the charging branch breaker 40a according to the power value of the output power, which is the measurement result.

[0108] Furthermore, when power is not being supplied from the power system PS due to a power outage or the like and stored power is being supplied from the power storage facility, the charging control unit 102 controls the charging branch breaker 40a to the OFF state regardless of the power value of the output power, which is the measurement result of the measurement processing unit 101. That is, the charging control unit 102 controls the charging branch breaker 40a to cut off the branch electric circuit L21 between the charging branch breaker 40a and the EV charger 50. For example, when the charging control unit 102 determines that a power outage has occurred based on the power value of the external power, it controls the charging branch breaker 40a to the OFF state regardless of the power value of the output power. As a result, when power is being supplied only from the power storage facility due to a power outage or the like, the charging of the EV battery 61 is suppressed, thereby making it possible to suppress the rate at which the remaining amount of power stored in the power storage facility decreases.

[0109] (5.8) Variation 8 Although the distributed power system 3 is configured to output the output power to the branch breaker 40d, the present invention is not limited to this configuration.

[0110] The distributed power system 3 may be configured to output output power to the primary side of the main breaker 30 when it is interconnected with the power system PS, and to output output power to the secondary side of the main breaker 30 when it is operating independently due to a power outage or the like.

[0111] (5.9) Variation 9 In the embodiment, the branch breaker 40 is configured to include a mechanical relay (power relay) as the switch SW, but is not limited to this configuration. The switch SW included in the branch breaker 40 may be any switch configured to be able to switch between an on state and an off state in response to a signal. For example, the switch SW may be a semiconductor switch having a field effect transistor (FET), an insulated gate bipolar transistor (IGBT), a bipolar transistor, or a solid state relay (SSR: Solid State Relay).

[0112] (Other variations) The above embodiment is merely one of various embodiments of the present disclosure. The above embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved. In addition, the same function as the control system 1 may be embodied in a control method, a computer program, or a non-transitory recording medium on which a program is recorded. The control method of the control system 1 according to one embodiment is used in a control system including a measurement processing unit 101 and a charge control unit 102. The control method includes a measurement processing step and a charge control step. In the measurement processing step, the measurement processing unit 101 measures the power in the distribution board 20 that supplies power to the load LD. In the charge control step, the charge control unit 102 controls the power supply to the EV battery 61 as the load LD. The measurement processing unit 101 and the charge control unit 102 are housed in a housing 200 of the distribution board 20. In the charge control step, the supply of power from the distribution board 20 to the EV charger 50 to which the EV battery 61 is electrically connected is controlled according to the measurement result of the measurement processing step. The program according to one embodiment is a program for causing a computer system to function as the above-mentioned control system 1 or the control method of the control system 1.

[0113] The subject of execution of the control system 1 or the control method of the control system 1 in the present disclosure includes a computer system. The computer system has a processor and a memory as hardware. The processor executes a program recorded in the memory of the computer system to realize the function of the subject of execution of the control system 1 or the control method of the control system 1 in the present disclosure. The program may be pre-recorded in the memory of the computer system, or may be provided through an electric communication line. The program may also be recorded and provided in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integrated circuit (LSI). The integrated circuits such as IC or LSI referred to here are called by different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, a field-programmable gate array (FPGA) that is programmed after the manufacture of the LSI, or a logic device that can reconfigure the connection relationship inside the LSI or the circuit partition inside the LSI, can also be adopted as a processor. The electronic circuits may be integrated in one chip or distributed across multiple chips. The chips may be integrated in one device or distributed across multiple devices.

[0114] Furthermore, it is not essential for control system 1 that multiple functions are concentrated within a single housing, and the components of control system 1 may be distributed across multiple housings.

[0115] (summary) As described above, the control system (1) of the first aspect includes the measurement processing unit (101) and the charging control unit (102, 102A). The measurement processing unit (101) measures power in the distribution board (20) that supplies power to the load (LD). The charging control unit (102, 102A) controls power supply to the EV battery (61) serving as the load (LD). The measurement processing unit (101) and the charging control unit (102, 102A) are housed in a housing (200) of the distribution board (20). The charging control unit (102, 102A) controls power supply from the distribution board (20) to the EV charger (50) to which the EV battery (61) is electrically connected, according to a measurement result of the measurement processing unit (101).

[0116] According to this embodiment, the measurement processing unit (101) and the charging control unit (102) are housed in the housing (200) of the distribution board (20), so that decentralization of functions can be suppressed.

[0117] In the control system (1) of the second aspect, in the first aspect, the measurement processing unit (101) measures, as the above-mentioned power, external power input from the power system (PS) to a main breaker (30) included in the distribution board (20). The charging control units (102, 102A) control the conduction and interruption of electric paths (branch electric paths L21, L22) between the EV charger (50) and a charging branch breaker (40a) electrically connected to the EV charger (50) among multiple branch breakers (40) included in the distribution board (20) according to a power value of the external power that is a measurement result.

[0118] According to this embodiment, charging of the EV battery (61) can be controlled in response to external power input from the power grid (PS).

[0119] In the control system (1) of the third aspect, in the second aspect, the charging control unit (102, 102A) controls the charging branch breaker (40a) to interrupt an electric path between the charging branch breaker (40a) and the EV charger (50) when the power value of the external power becomes equal to or greater than a predetermined reference value.

[0120] According to this embodiment, charging of the EV battery (61) can be controlled in response to external power input from the power grid (PS).

[0121] In the control system (1) of the fourth aspect, in the third aspect, the reference value is a value based on the peak value determined in the contract power and is a value lower than the peak value.

[0122] According to this embodiment, the charging of the EV battery (61) can be controlled using the reference value determined based on the peak value.

[0123] In the control system (1) of the fifth aspect, in any one of the first to fourth aspects, the distribution board (20) is electrically connected to the distributed power system (3). The measurement processing unit (101) measures the output power output from the distributed power system (3) to the distribution board (20) as the above-mentioned power. The charging control units (102, 102A) control the conduction and interruption of an electric path (branch electric path L21) between the EV charger (50) and a charging branch breaker (40a) electrically connected to the EV charger (50) among multiple branch breakers (40) included in the distribution board (20) according to a power value of the output power as a result of the measurement.

[0124] According to this embodiment, charging of the EV battery (61) can be controlled in accordance with the output power output from the distributed power system (3).

[0125] In the control system (1) of the sixth aspect, in the fifth aspect, the distributed power system (3) includes a power generation facility (71) that generates power from renewable energy. The measurement processing unit (101) measures output power output from the distributed power system (3) based on power generated by the power generation facility (71). When the power value of the output power becomes equal to or greater than a predetermined value, the charging control unit (102, 102A) controls the charging branch breaker (40a) so that an electric path between the charging branch breaker (40a) and the EV charger (50) is made conductive.

[0126] According to this embodiment, charging of the EV battery (61) can be controlled in accordance with the output power output from the distributed power system (3).

[0127] In the control system (1) of the seventh aspect, in the first to sixth aspects, the plurality of branch breakers (40) included in the distribution board (20) include a first charging branch breaker (40a) and a second charging branch breaker (40b). The first charging branch breaker (40a) is electrically connected to a first EV charger (50a) serving as the EV charger (50). The second charging branch breaker (40b) is electrically connected to a second EV charger (50b) different from the first EV charger (50a). The first EV charger (50a) is electrically connected to a first EV battery (61a) serving as the EV battery (61). The second EV charger (50b) is electrically connected to a second EV battery (61b) different from the first EV battery (61a). The charging control unit (102A) controls the first charging branch breaker (40a) and the second charging branch breaker (40b) according to a measurement result of the measurement processing unit (101) so that a first conduction period in which the first electric circuit (branch electric circuit L21) is conductive and a second conduction period in which the second electric circuit (branch electric circuit L22) is conductive do not overlap. The first electric circuit is an electric circuit between the first charging branch breaker (40a) and the first EV charger (50a). The second electric circuit is an electric circuit between the second charging branch breaker (40b) and the second EV charger (50b).

[0128] According to this embodiment, rotation control is possible according to the measurement results.

[0129] In the control system (1) of an eighth aspect, in any one of the first to seventh aspects, the plurality of branch breakers (40) included in the distribution board (20) includes a charging branch breaker (40a) electrically connected to the EV charger (50). The charging control unit (102, 102A) further controls the charging branch breaker (40a) to establish electrical continuity between the charging branch breaker (40a) and the EV charger (50) for a preset period.

[0130] According to this embodiment, it is possible to control the EV battery (61) to be charged with power for a preset period of time.

[0131] A distribution board system (2) of a ninth aspect includes the control system (1) of any one of the first to eighth aspects and a distribution board (20).

[0132] According to this embodiment, it is possible to prevent the distribution of functions. [Explanation of symbols]

[0133] 1. Control System 2 Distribution Board System 3 Distributed power systems 10, 10A, 10B Control device 20 Distribution Board 40 Branch Breaker 40a Branch Breaker (1st Charging Branch Breaker, Charging Branch Breaker) 40b Branch breaker (second charging branch breaker) 50 EV charger 50a 1st EV charger 50b 2nd EV charger 61 EV Battery 61a 1st EV Battery 61b 2nd EV battery 101 Measurement processing section 102,102A Charging control unit 200 units LD load PS power system

Claims

1. A measurement processing unit that measures power in a distribution board that supplies power to a load; a charging control unit that controls the supply of power to the EV battery as the load, The measurement processing unit and the charging control unit are accommodated in a housing of the distribution board, The charging control unit controls the supply of power from the distribution board to an EV charger to which the EV battery is electrically connected in accordance with a measurement result of the measurement processing unit. Control system.

2. The measurement processing unit measures, as the electric power, an external electric power input from a power system to a main breaker provided in the distribution board, The charging control unit controls conduction and interruption of an electric path between the EV charger and a charging branch breaker electrically connected to the EV charger among a plurality of branch breakers provided in the distribution board according to a power value of the external power that is the measurement result. The control system of claim 1 .

3. The charging control unit controls the charging branch breaker so that the electric path between the charging branch breaker and the EV charger is interrupted when the power value of the external power becomes equal to or greater than a predetermined reference value. The control system of claim 2.

4. The reference value is a value based on a peak value determined by a contract power and is a value lower than the peak value. The control system of claim 3.

5. The distribution board is electrically connected to a distributed power system, The measurement processing unit measures, as the power, an output power output from the distributed power system to the distribution board; The charging control unit controls conduction and interruption of an electric path between a charging branch breaker electrically connected to the EV charger among a plurality of branch breakers provided in the distribution board according to a power value of the output power which is the measurement result, and the EV charger. A control system according to any one of claims 1 to 4.

6. The distributed power system includes a power generation facility that generates power from renewable energy, The measurement processing unit measures the output power output from the distributed power system based on the power generated by the power generation facility, The charging control unit controls the charging branch breaker so that the electric path between the charging branch breaker and the EV charger is conductive when a power value of the output power becomes equal to or greater than a predetermined value. The control system of claim 5.

7. The plurality of branch breakers included in the distribution board include a first charging branch breaker and a second charging branch breaker, the first charging branch breaker is electrically connected to a first EV charger serving as the EV charger, the second charging branch breaker is electrically connected to a second EV charger different from the first EV charger, the first EV charger is electrically connected to a first EV battery as the EV battery, the second EV charger is electrically connected to a second EV battery different from the first EV battery; the charging control unit controls the first charging branch breaker and the second charging branch breaker according to the measurement result of the measurement processing unit so that a first conduction period during which a first electric path between the first charging branch breaker and the first EV charger is conductive and a second conduction period during which a second electric path between the second charging branch breaker and the second EV charger are conductive do not overlap. The control system of claim 1 .

8. the plurality of branch breakers included in the distribution board include a charging branch breaker electrically connected to the EV charger, The charging control unit further controls the charging branch breaker so as to establish conduction between the charging branch breaker and the EV charger during a preset period. The control system of claim 1 .

9. A control system according to claim 1; The distribution board, Distribution board system.

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