Electric vehicle power supply control system, program, and method

Abstract

An electric vehicle power supply control system, program, and method are provided for controlling the maximum supply power that can be supplied by a power supply device for an electric vehicle. [Solution] An electric vehicle power supply control system 1 including a control device 11 that transmits information for setting the maximum supply power in an electric vehicle power supply device 21 that supplies power to an electric vehicle, and the control device comprises at least one of a target space power measuring unit 113 that measures target space power consumption supplied to a target space load, which is a load that consumes power within the target space, and a generated power measuring unit that measures the target space generated power generated by a power generation device provided in the target space, and a supply power control unit 115 that transmits at least one of target space power consumption information, target space generated power information, calculated power information and maximum supply power information to the electric vehicle power supply device.

Description

[Technical field]

[0001] The present disclosure relates to an electric vehicle power supply control system, a program, and a method. [Background technology]

[0002] Conventionally, efforts have been made to resolve problems that arise when charging large-capacity storage batteries in electric vehicles such as electric vehicles (hereinafter referred to as "EVs") and plug-in hybrid electric vehicles (PHVs) using commercial power sources in the home (see Patent Document 1). Patent Document 1 shows a distribution board device that gives top priority to current consumption required in the home, thereby avoiding the inconvenience of turning off electrical appliances that are normally used when charging the PHV / EV, and that can charge the PHV / EV with the maximum current within the remaining allowable current. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-125091 A Summary of the Invention [Problem to be solved by the invention]

[0004] The distribution board device disclosed in Patent Document 1 judges whether the current consumption value is smaller than the allowable current value, and if the current consumption value exceeds the allowable current value, opens the electromagnetic switch for the PHV / EV, and the PHV / EV is not charged and power is supplied to the home. If it is judged that the current consumption value does not exceed the allowable current value, the electromagnetic switch is closed and the PHV / EV is charged with a current value Ic obtained by subtracting the current consumption value Ia from the allowable current value Ib. However, the controller 16 included in the distribution board device of Patent Document 1 merely judges whether the current consumption value Ia is smaller than the allowable current value Ib, and controls whether or not to supply the current value Ic by opening and closing the electromagnetic switch 61, and it is difficult to say that it is capable of finely controlling the current value Ic for charging an electric vehicle such as a PHV / EV. In addition, the controller 16 is configured to receive the output of the branch breaker for all loads (such as home appliances) and control the current supply to each load. However, if the controller 16 is to supply current to the loads such as home appliances in this way, the structure becomes complicated, and the introduction cost may be high. Moreover, in recent years, charging via a power supply device dedicated to charging electric vehicles has become common, and there is a demand for a system that can precisely control the maximum supply power according to the power consumption within the target space while being compatible with such power supply devices for electric vehicles.

[0005] Therefore, the present disclosure has an object to provide an electric vehicle power supply control system, program, and method that enables the maximum supply power to be precisely set in accordance with the power consumption and power generation within a target space by providing a control device that transmits information for setting the maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, in particular by using the control device and the electric vehicle power supply device. [Means for solving the problem]

[0006] An electric vehicle power supply control system according to one aspect of the present invention is an electric vehicle power supply control system that includes a control device that transmits information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, and the control device comprises at least one of a target space power measurement unit that measures target space power consumption supplied to a target space load, which is a load that consumes power within the target space, or a generated power measurement unit that measures target space generated power generated by a power generation device provided in the target space, and a supply power control unit that transmits to the electric vehicle power supply device at least one of target space power consumption information indicating the target space power consumption, or target space generated power information indicating the target space generated power, or calculated power information calculated based on at least one of the target space power consumption or the target space generated power, or maximum supply power information indicating the maximum supply power. Effect of the Invention

[0007] According to one aspect of the present invention, by providing a control device that transmits information for setting the maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, it is possible to provide an electric vehicle power supply control system, program, and method that enable the control device and electric vehicle power supply device to precisely set the maximum supply power in accordance with the power consumption and power generation in a target space. [Brief description of the drawings]

[0008] [Figure 1] 1 is a diagram showing an example of the configuration of an electric vehicle power supply control system according to a first embodiment. [Diagram 2] FIG. 2 is a diagram showing an example of a distribution board according to the first embodiment. [Diagram 3] 1 is a diagram showing an example of a distribution board incorporating a control device according to a first embodiment. [Figure 4] FIG. 1 is a diagram showing an example of an electric wire according to a first embodiment. [Diagram 5] 1 is a diagram showing an example of an electric vehicle power supply control system according to a first embodiment. [Figure 6]FIG. 4 is a diagram showing another example of the electric vehicle power supply control system according to the first embodiment. [Figure 7] FIG. 4 is a diagram showing another example of the configuration of the electric vehicle power supply control system according to the first embodiment. [Figure 8] FIG. 11 is a diagram showing a configuration example of an electric vehicle power supply control system including a power generation device according to a second embodiment. [Figure 9] FIG. 11 is a diagram showing an example of a distribution board according to a second embodiment. [Figure 10] FIG. 11 is a diagram showing an example of an electric vehicle power supply control system according to a second embodiment. [Figure 11] FIG. 11 is a diagram showing another example of the configuration of the electric vehicle power supply control system according to the second embodiment. [Figure 12] FIG. 11 is a diagram showing a configuration example of an electric vehicle power supply control system including a power generation device according to a third embodiment. [Figure 13] FIG. 11 is a diagram showing an example of an electric vehicle power supply control system according to a third embodiment. [Figure 14] FIG. 11 is a diagram showing another example of the configuration of the electric vehicle power supply control system according to the third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] [Item 1] An electric vehicle power supply control system including a control device that transmits information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, The control device includes: At least one of a target space power measuring unit that measures the target space power consumption supplied to a load in the target space that is a load that consumes power in the target space, and a generated power measuring unit that measures the target space generated power generated by a power generating device provided in the target space; a supply power control unit that transmits to the electric vehicle power supply device at least one of target space power consumption information indicating the target space power consumption, target space generated power information indicating the target space generated power, calculated power information calculated based on at least one of the target space power consumption or the target space generated power, or maximum supply power information indicating the maximum supply power; and An electric vehicle power supply control system comprising: [Item 2] An electric vehicle power supply control system including a control device that transmits information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, The control device includes: a target space power measuring unit that measures a target space power consumption supplied to a target space load that is a load that consumes power in the target space; a supply power control unit that transmits at least one of target space power consumption information indicating the target space power consumption, calculated power information calculated based on the target space power consumption, or maximum supply power information indicating the maximum supply power to the electric vehicle power supply device; and An electric vehicle power supply control system comprising: [Item 3] An electric vehicle power supply control system including a control device that transmits information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, The control device includes: a power generation measuring unit for measuring the power generation in the target space generated by a power generation device provided in the target space; a supply power control unit that transmits at least one of target space generated power information indicating the target space generated power, calculated power information calculated based on the target space generated power, or maximum supply power information indicating the maximum supply power to the electric vehicle power supply device; and An electric vehicle power supply control system comprising: [Item 4] An electric vehicle power supply control system including a control device that transmits information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, The control device includes: a target space power measuring unit that measures the target space power consumption supplied to a target space load that is a load that consumes power in the target space; a power generation measuring unit for measuring the power generation in the target space generated by a power generation device provided in the target space; a supply power control unit that transmits to the electric vehicle power supply device at least one of target space power consumption information indicating the target space power consumption and target space generated power information indicating the target space generated power, or calculated power information calculated based on the target space power consumption and the target space generated power, or maximum supply power information indicating the maximum supply power; and An electric vehicle power supply control system comprising: [Item 5] The electric vehicle power supply device includes: a maximum supply power information transmission unit that generates maximum supply power information indicating the maximum supply power that can be supplied to the electric vehicle based on at least any one of the power information of the target space power consumption information, the target space power generation information, and the calculated power information, and transmits the maximum supply power information to the electric vehicle; 5. The electric vehicle power supply control system according to claim 1, further comprising: [Item 6] The electric vehicle power supply device includes: a maximum supply power information transmitting unit configured to transmit the received maximum supply power information to the electric vehicle; 6. The electric vehicle power supply control system according to claim 1, further comprising: [Item 7] The electric vehicle power supply control system according to any one of claims 1 to 6, further comprising an electric vehicle power supply device breaker for wiring for supplying power to the electric vehicle power supply device. [Item 8] 8. The electric vehicle power supply control system according to item 7, wherein the breaker for the electric vehicle power supply device is provided in a distribution board in the target space. [Item 9] 8. The electric vehicle power supply control system according to item 7, wherein the breaker for the electric vehicle power supply device is provided in a power meter in the target space. [Item 10] 10. The electric vehicle power supply control system according to any one of claims 1 to 9, wherein the control device is a power meter in a target space. [Item 11] A program for controlling a control device that transmits information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, The control device At least one of a step of measuring a target space power consumption supplied to a load in the target space that is a load that consumes power in the target space, and a step of measuring a target space power generation generated by a power generation device provided in the target space; transmitting at least one of target space power consumption information indicating the target space power consumption, target space generated power information indicating the target space generated power, calculated power information calculated based on at least one of the target space power consumption or the target space generated power, or maximum supply power information indicating the maximum supply power to the electric vehicle power supply device; A program to execute. [Item 12] A control method by a control device that transmits information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, comprising: The control device At least one of a step of measuring a target space power consumption supplied to a load in the target space that is a load that consumes power in the target space, and a step of measuring a target space power generation generated by a power generation device provided in the target space; transmitting at least one of target space power consumption information indicating the target space power consumption, target space generated power information indicating the target space generated power, calculated power information calculated based on at least one of the target space power consumption or the target space generated power, or maximum supply power information indicating the maximum supply power to the electric vehicle power supply device; A method for performing.

[0011] <Configuration of electric vehicle power supply control system 1 according to the present invention> 1 is a diagram showing an example of the configuration of an electric vehicle power supply control system 1 according to the present embodiment 1. The electric vehicle power supply control system 1 in the present invention includes a control device 11, an electric vehicle power supply device 21, and an electric vehicle side power storage system 41.

[0012] The electric vehicle power supply control system 1 in the present invention includes a control device 11 that transmits information for setting a maximum supply power in an electric vehicle power supply device 21 that supplies power to an electric vehicle. The control device 11 is equipped with at least one of a target space power measurement unit 113 that measures target space power consumption information indicating target space power consumption supplied to a target space load 31, which is a load that consumes power in the target space, or a generated power measurement unit 116 that measures the target space generated power generated by a power generation device equipped in the target space, and a supply power control unit 115 that transmits to the electric vehicle power supply device 21 at least one of (1) target space power consumption information indicating the target space power consumption, or (2) target space generated power information indicating the generated power generated by a power generation device equipped in the target space, or (3) calculated power information calculated based on at least one of the target space power consumption or the target space generated power, or (4) maximum supply power information indicating the maximum supply power. The "target space" referred to here is a space having a power supply facility, and may be, for example, a space such as an average household's dwelling or a small facility such as a community center that is electrically equivalent to a home. However, it is not limited to these, and may be any space such as a building, structure, or management area as long as the above invention is applicable.

[0013] The electric vehicle power supply control system 1 according to the present invention can be understood as a program as follows.

[0014] A program for controlling a control device 11 to transmit information for setting a maximum supply power in an electric vehicle power supply device 21 that supplies power to an electric vehicle, the program causing the control device 11 to execute at least one of a step of measuring target space power consumption supplied to a target space load 31, which is a load that consumes power in the target space, or a step of measuring the target space generated power generated by a power generation device 51 equipped in the target space, and a step of transmitting to the electric vehicle power supply device 21 at least one of target space power consumption information indicating the target space power consumption, target space generated power information indicating the generated power generated by a power generation device equipped in the target space, calculated power information calculated based on at least one of the target space power consumption or the target space generated power, and maximum supply power information indicating the maximum supply power.

[0015] The electric vehicle power supply control system 1 according to the present invention can be considered as a control method as follows.

[0016] A method for controlling an electric vehicle power supply control system 1 including a control device 11 that transmits information for setting a maximum supply power in an electric vehicle power supply device 21 that supplies power to an electric vehicle, the method executing, by the control device 11, at least one of a step of measuring target space power consumption supplied to a target space load 31, which is a load that consumes power in the target space, or a step of measuring the target space generated power generated by a power generation device equipped in the target space, and a step of transmitting to the electric vehicle power supply device 21 at least one of target space power consumption information indicating the target space power consumption, target space generated power information indicating the generated power generated by a power generation device equipped in the target space, calculated power information calculated based on at least one of the target space power consumption or the target space generated power, and maximum supply power information indicating the maximum supply power.

[0017] In the electric vehicle power supply control system 1 of the present invention, by providing a control device that transmits information for setting the maximum supply power in the electric vehicle power supply device 21 that supplies power to the electric vehicle, it is possible to provide an electric vehicle power supply control system that allows the control device 11 and the electric vehicle power supply device 21 to precisely set the maximum supply power in accordance with the power consumption and power generation in the target space.

[0018] <Embodiment 1>

[0019] <Configuration of Electric Vehicle Power Supply Control System 1 in First Embodiment> 1 is a diagram showing an example of the configuration of an electric vehicle power supply control system 1 according to the present embodiment 1. The electric vehicle power supply control system 1 in the present embodiment 1 includes a control device 11, an electric vehicle power supply device 21, and an electric vehicle side power storage system 41.

[0020] 1, the commercial power line E is attached to a utility pole EP by a mounting part (not shown). However, the commercial power line E may be buried in the ground without being attached to the utility pole EP. Commercial power flows through the commercial power line E.

[0021] One end of the power cable EC is connected to a commercial power line E so as to be able to carry commercial power. The other end of the power cable EC is connected to a power meter EM. The power meter EM is an electric meter that accumulates and measures the power obtained via the power cable EC.

[0022] One end of the first power cable EC1 is connected to the power meter EM. A portion of the first wiring W1 is drawn into the house HU and connected to the distribution board DB.

[0023] 2 is a diagram showing an example of a distribution board DB according to the present embodiment 1. The distribution board DB includes a main breaker MB, an earth leakage breaker ELB, and a branch breaker BB.

[0024] The main breaker MB is a commercial power inlet device and protection device. The main breaker MB detects the current throughout the target space and cuts off the circuit if there is an abnormality. The main breaker MB is equipped with a power receiving unit and a power supplying unit. The power receiving unit may be a power receiving terminal. The power supplying unit may be a power supplying terminal. The main breaker MB may be interpreted as a service breaker. Commercial power is the electricity supplied from power plants to consumers (general homes and factories). Commercial power sources supplied in Japan are AC and come in voltages of 100V (mainly single-phase) and 200V (single-phase / three-phase).

[0025] The earth leakage circuit breaker ELB is a device that cuts off a circuit when it detects an electric leakage to prevent disasters. The earth leakage circuit breaker ELB includes a power receiving unit and a power supplying unit. The power receiving unit may be a power receiving terminal. The power supplying unit may be a power supplying terminal. The earth leakage circuit breaker may be read as an earth leakage circuit breaker or an ELCB (Earth Leakage Circuit Breaker).

[0026] The branch breaker BB is a device that prevents power to the entire house from being cut off by cutting off only a circuit (branch circuit) that carries electricity from the distribution board to each room or outlet when the amount of electricity flowing in that circuit exceeds the capacity of the circuit. The branch breaker BB includes a power receiving unit and a power supply unit. The power receiving unit may be a terminal for receiving power. The power supply unit may be a terminal for supplying power. The branch breaker BB may be read as a wiring-type cutoff safety breaker.

[0027] As shown in Fig. 2, the other end of the first wiring W1 is connected to the power receiving unit of the main breaker MB so that commercial power can be passed therethrough. The commercial power may be received by configuring the first wiring W1 with two wires, a 0V electric wire 0EL and a +100V electric wire +EL, or with two wires, a 0V electric wire 0EL and a -100V electric wire -EL, to receive approximately 100V, or by configuring the first wiring W1 with two wires, a +100V electric wire +EL and a -100V electric wire -EL, to receive 200V, or by configuring the first wiring W1 with three wires, a +100V electric wire +EL, a -100V electric wire -EL, and a 0V electric wire 0EL, to receive 100V or 200V. Note that other wirings may have a similar configuration.

[0028] The second wiring W2 has one end connected to a power supplying portion of the main breaker MB and the other end connected to a power receiving portion of the earth leakage breaker ELB so that power can be passed therethrough.

[0029] The third wiring W3 has one end connected to a power supplying part of the earth leakage breaker ELB and the other end connected to a power receiving part of the branch breaker BB so that power can be passed therethrough.

[0030] Two or more branch breakers BB form a branch breaker group BBG. For this reason, the third wiring W3 is connected to the power receiving parts of all the branch breakers BB included in the branch breaker group BBG (for simplicity of illustration, in FIG. 2 and the like, it is connected to one branch breaker BB).

[0031] One end of the fourth wiring W4 is connected to the power supply unit of the branch breaker BB so that power can be passed through it. The fourth wiring W4 also has a branch point SP at the other end. Two or more branch wirings SW have one end connected to the branch point SP of the fourth wiring W4 so that power can be passed through them, and all or a part of the other end is connected to the load 31 in the target space so that power can be supplied. The load 31 in the target space is a load that consumes power in the target space, such as home appliances such as a television, air conditioner, hot water supply device, lighting equipment, and cooking equipment, and includes a variety of things.

[0032] 1, two or more fourth wirings W4 form a fourth wiring group W4G (for simplicity, only one fourth wiring W4 from each branch breaker BB is shown, but this is not limited thereto). Therefore, the fourth wiring group W4G includes two or more fourth wirings W4. Note that when the first current sensor CS1 is included in the fourth wiring group W4G, the first current sensor CS1 is connected to all the fourth wirings W4 included in the fourth wiring group W4G.

[0033] The first current sensor CS1 is a sensor that measures the current flowing through the wiring. The first current sensor CS1 may be composed of, for example, one or more clamp current measurement sensors. The first current sensor CS1 includes an information output unit for transmitting current data. The information output unit may be an information output terminal. In the figure, the current sensor CS is simply illustrated as being connected to the wiring to be measured, such as the third wiring W3, but may be connected to a wiring indicating a reference power (which may be 0 V) ​​for measuring the current (more specifically, for example, a configuration in which the reference power wiring is clamped). In addition, as described later, the wiring to be measured is not limited to the third wiring W3, but may be any wiring, such as the first wiring W1, the second wiring W2, the fourth wiring group W4G, the fifth wiring W5, and the seventh wiring W7 (that is, the wiring for the load 31 in the target space, the wiring for the control device 11, and the wiring for the electric vehicle power supply device 21 may be provided with a common current sensor in all or part, or each may be provided with a current sensor). In addition, in FIG. 3, a configuration in which the first current sensor CS1 (and the first voltage sensor VS1) are built into the distribution board DB is illustrated as an example, but this is not limited thereto, and each sensor may be provided on the wiring to be measured outside the distribution board DB.

[0034] The fifth wiring W5 has one end connected to the seventh wiring W7 (or the power supply unit of the breaker EVB for the electric vehicle power supply device 21) so that electric power can be passed, and the other end connected to the power supply power receiving unit 111 of the control device 11. In addition, without being limited thereto, the fifth wiring W5 may have a configuration in which, for example, one end is connected to any one or more fourth wirings W4 of the fourth wiring group W4G, and the other end is connected to the power supply power receiving unit 111 of the control device 11.

[0035] 2, the sixth wire W6 has one end connected to the third wire W3 so as to be able to pass electric power, and the other end connected to a power receiving unit of the breaker EVB for the electric vehicle power supply device 21. Note that the connection configuration is not limited to this, and for example, the sixth wire W6 may have one end connected to the earth leakage circuit breaker ELB in parallel with the third wire W3. In this case, the first current sensor CS1 and the first voltage sensor VS1 may be provided respectively, or may be provided only on the third wire W3 if only the power consumption of the load 31 in the target space is to be grasped.

[0036] The seventh wiring W7 has one end connected to the power supply section of the breaker EVB for the electric vehicle power supply device 21 so that electric power can be passed, and the other end connected to the power supply power receiving section 211 of the electric vehicle power supply device 21.

[0037] The first communication cable CC1 has one end connected to the target space power measurement unit 113 of the control device 11 so that current data can be transmitted from the first current sensor CS1 to the control device 11, and the other end connected to the information output unit of the first current sensor CS1.

[0038] The first current sensor CS1 transmits at least one of the current in the second wiring W2, the current in the third wiring W3, or the total current flowing through all of the fourth wiring W4, the fifth wiring W5, and the seventh wiring W7 as power data (which may also be called current data, and is also called power data because the voltage is generally roughly constant (e.g., 100V or 200V); the same applies below) to the target space power measuring unit 113 of the control device 11 via the first communication cable CC1 (the illustrated configuration shows the first current sensor CS1 connected to the third wiring W3). The current of the second wiring W2, the current of the third wiring W3, or the total current flowing through all of the fourth wiring W4, the fifth wiring W5, and the seventh wiring W7 is the sum of the current supplied to the target space load 31 connected to the branch wiring SW branched from all of the fourth wiring W4, the current supplied from the fifth wiring W5 to the control device 11, and the current supplied from the seventh wiring W7 to the electric vehicle power supply device 21. Therefore, the first current sensor CS1 transmits at least one of the current of the second wiring W2, the current of the third wiring W3, or the total current supplied to the target space load 31 connected to the branch wiring SW branched from the fourth wiring W4 as power data to the target space power measurement unit 113 of the control device 11 via the first communication cable CC1.

[0039] Furthermore, a first voltage sensor VS1 may be connected to any of the first to eighth wirings W, such as the second wiring W2, the third wiring W3, or the fourth wiring W4. However, the first voltage sensor VS1 is not an essential component of the electric vehicle power supply control system 1. The first voltage sensor VS1 may be built into the control device 11 and connected to the fifth wiring W5. When the first voltage sensor VS1 is connected to the second wiring W2, the third wiring W3, the fourth wiring W4, or the like, the electric vehicle power supply control system 1 further includes a second communication cable CC2. One end of the second communication cable CC2 is connected to the target space power measurement unit 113 of the control device 11 so that voltage data can be transmitted from the first voltage sensor VS1 to the target space power measurement unit 113 of the control device 11, and the other end is connected to the voltage data transmission unit of the first voltage sensor VS1. The first voltage sensor VS1 generates voltage data of the measured voltage and transmits it from the voltage data transmission unit to the target space power measurement unit 113 of the control device 11 via the second communication cable CC2. Note that, although the voltage sensor VS also shows a simplified configuration in which it is connected to the wiring of the measurement target, such as the fourth wiring group W4G, it may be connected to a wiring indicating a reference power (which may be 0 V) ​​in addition to the wiring of the measurement target, or may be connected to these two wires when the measurement target is paired with a positive wiring and a negative wiring.

[0040] A first voltage sensor VS1 is connected to any of the first to eighth wirings W, such as the second wiring W2, the third wiring W3, the fourth wiring W4, or the fifth wiring W5, and when the target space power measuring unit 113 of the control device 11 receives voltage data from the voltage data transmitting unit of the first voltage sensor VS1, the control device 11 can recognize the voltage of the power flowing through the second wiring W2, the third wiring W3, or the fourth wiring W4.

[0041] The eighth wiring W8 has one end connected to the electric vehicle power supply unit 212 of the electric vehicle power supply device 21 so that electric power can be passed, and the other end connected to the supply power receiving unit 411 of the electric vehicle side power storage system 41 of the electric vehicle.

[0042] FIG. 3 is a diagram showing an example of a distribution board DB with a built-in control device 11 as a modification of the first embodiment. That is, the control device 11 may be built into the distribution board DB in a size that allows it to be built into the distribution board DB. When the control device 11 is built into the distribution board DB, the fifth wiring W5 may also be built into the distribution board DB, and a part of the first communication cable CC4 may also be built into the distribution board DB. Other points are the same as those described in the first embodiment above, and therefore will not be repeated.

[0043] 4 is a diagram showing an example of an electric wire EL in the wiring W according to the present embodiment. The voltage of the 0V electric wire 0EL is about 0V. The voltage of the +100V electric wire +EL is about +100V. The voltage of the -100V electric wire -EL is about -100V.

[0044] The first wiring W1 to the eighth wiring W8 may be configured with two wires, 0V electric wire 0EL and +100V electric wire +EL, or two wires, 0V electric wire 0EL and -100V electric wire -EL, or two wires, +100V electric wire +EL and -100V electric wire -EL, or three wires, 0V electric wire 0EL, +100V electric wire +EL and -100V electric wire -EL. Note that all wirings W do not have to have the same electric wire EL configuration, and the upstream wirings W such as the first wiring W1 may have the above three-wire configuration, and the seventh wiring W7 and the eighth wiring W8 may have any of the above two-wire configurations (particularly, a two-wire configuration of +100V electric wire +EL and -100V electric wire -EL). In addition, a separate earth wire may be provided, for example, it may be drawn from the first wiring W1, or a ground rod (ground rod) may be provided on the electric vehicle power supply device 21 side to wire the earth wire. In particular, the eighth wiring W8 may include a ground line, a communication line, and a connection check line in addition to the power line, and may be configured to transmit and receive information such as maximum power supply information via the communication line. <Configuration of the control device 11>

[0045] 5 is a diagram showing an example of an electric vehicle power supply control system 1 according to the present embodiment. As described above, the electric vehicle power supply control system 1 includes the control device 11, the electric vehicle power supply device 21, and the electric vehicle side power storage system 41.

[0046] As described above, the control device 11 includes the source power receiving unit 111, the allowable power storage unit 112, the target space power measuring unit 113, the power difference setting unit 114, the supply power control unit 115, and the information processing unit 119.

[0047] The source power receiving unit 111 receives source power necessary for the operation of the control device 11. The source power may be received, for example, from any of the wirings W (any of the third wirings W3 to the seventh wirings W7 or a dedicated wiring W (not shown)) under the earth leakage circuit breaker ELB, or may be received from a dedicated battery (not shown), a dedicated power generation device (for example, solar power), a power generation device described below, or the like, but is not limited to these.

[0048] The allowable power storage unit 112 stores allowable power information indicating allowable power, which is the upper limit of power that can be consumed in a target space that receives commercial power from a commercial power system.

[0049] Electricity is Power = Voltage x Current The unit of power is W, the unit of voltage is V, and the unit of current is A.

[0050] Since the commercial power received by each target space is generally a fixed value of about 100 V or about 200 V, the allowable power storage unit 112 may store only the allowable current value (A) for the allowable power. However, the allowable power storage unit 112 may store both the voltage value (V) and the allowable current value (A) of the commercial power, or may store only the allowable power value (W).

[0051] The allowable power storage unit 112 may store allowable power information in advance, or may store allowable power information indicated by a physical switch for setting the allowable power provided in the control device 11, or may store the allowable power information by receiving the allowable power information via an information processing unit 119 described later. The allowable power information stored in the allowable power storage unit 112 may be, for example, 30 (A) as a breaker capacity, or may be a value lower than the breaker capacity by a predetermined value. In addition, when the allowable power storage unit 112 stores both the voltage value (V) of the commercial power and the allowable current value (A), the commercial power value may be, for example, 100 (V) or 200 (V), and the allowable current value may be, for example, 30 (A).

[0052] The information processing unit 119 is a functional unit that manages information processing such as reception or transmission of predetermined information in the control device 11, reading of information from a predetermined storage unit, and storage in a predetermined storage unit. The information processing unit 119 accepts input of allowable power information to be stored in the allowable power storage unit 112. The information processing unit 119 accepts input of allowable power information to be stored in the allowable power storage unit 112, whether the allowable power is stored in advance in the allowable power storage unit 112 or not stored in advance in the allowable power storage unit 112. When the allowable power information is stored in the allowable power storage unit 112 and new allowable power information is input to the information processing unit 119, the allowable power storage unit 112 erases the stored allowable power information or stores the new allowable power information received by the information processing unit 119 by linking it to storage time information (for example, information on the date of storage or information on the date and time) so that the latest allowable power information can be grasped. When the allowable power information is input in the allowable power storage unit 112 and no allowable power information is stored in the allowable power storage unit 112, the allowable power storage unit 112 stores the allowable power information received by the information processing unit 119.

[0053] The information processing unit 119 may receive the allowable power information via an input / output port, such as an RS-232, RS485, RS422, USB (Universal Serial Bus), i.LINK, FireWire, PS / 2 connector, VGA terminal, or DVI port.

[0054] When the information processing unit 119 is connected to a terminal device (e.g., a personal computer or a mobile terminal device such as a smartphone) or an input / output port of a server via a communication cable, the personal computer or the server may transmit allowable power information to the information processing unit 119.

[0055] The information processing unit 119 may also receive the allowable power via a wireless receiving device included in the control device 11. In this case, the allowable power information may be transmitted from a personal computer, a server, a smartphone, or a mobile phone via a predetermined wireless network by wireless communication. The wireless network may be a short-range communication interface such as Bluetooth (registered trademark), BLE (Bluetooth Low Energy), or Wi-Fi. As a more specific example, a predetermined application (for example, a dedicated application or a browser application for using a Web service) may be started on a terminal such as a smartphone, and the allowable power input by an input operation on the application may be transmitted as the allowable power information. Various information may be transmitted from the terminal by directly communicating with the control device 11 or the electric vehicle power supply device 21 via a network, and / or the information may be transmitted from the terminal to a server via a network, and then transmitted from the server to the control device 11 or the electric vehicle power supply device 21 via a network.

[0056] The allowable power information is stored in advance in the allowable power memory unit 112, and in the case where the allowable power information stored in the allowable power memory unit 112 cannot be changed, the control device 11 does not need to have a function of receiving the allowable power information in the information processing unit 119.

[0057] The target space power measuring unit 113 measures the target space power consumption supplied to the target space load 31, which is a load that consumes power in the target space. The target space power measuring unit 113 receives the power data transmitted by the first current sensor CS1 as the target space power consumption. Alternatively or in addition to this, the target space power measuring unit 113 receives the power data (voltage data) transmitted by the first voltage sensor VS1 as the target space power consumption. Note that the above-mentioned "receiving the power data as the target space power consumption" may include, for example, calculating power based on the power data (current data) and reference voltage data transmitted by the first current sensor CS1, or based on the voltage data and reference current data transmitted by the first voltage sensor VS1, or based on the power data (current data) transmitted by the first current sensor CS1 and the voltage data transmitted by the first voltage sensor VS1, and setting it as the target space power consumption. In addition, when each sensor is connected to the second wiring W2 or the third wiring W3, the power consumption of the control device 11 and the power consumption of the electric vehicle power supply device 21 may also be included as the target space power consumption.

[0058] The power difference setting unit 114 sets the power difference, which is the difference between the above-mentioned allowable power and the target space power consumption, as power difference information.

[0059] The supply power control unit 115 transmits at least one of the target space power consumption information indicating the target space power consumption described above and maximum supply power information indicating the maximum supply power to the electric vehicle power supply device.

[0060] Here, the information transmitted by the supply power control unit 115 may differ depending on whether or not the control device 11 has a function of calculating the maximum supply power. That is, first, when the control device 11 has a function of calculating the maximum supply power, the supply power control unit 115 generates maximum supply power information indicating the maximum supply power that is the power that can be supplied by the electric vehicle power supply device 21, for example, based on the above-mentioned power difference. Note that the maximum supply power information indicating the maximum supply power may be information indicating a duty ratio corresponding to the maximum supply power when the supply power described below is adjusted by setting a duty ratio.

[0061] Supply power control section 115 may set all of the power values ​​of the power differences as the maximum supply power.

[0062] Alternatively, in a case where all of the power values ​​of the power difference are set as the maximum supply power, when electric vehicle power supply device 21 supplies the maximum supply power to the electric vehicle, if the target space power consumption increases suddenly, it is possible that the target space power consumption will exceed the allowable power. Therefore, the supply power control unit 115 may set the margin power difference obtained by further subtracting the margin power from the power difference as the maximum supply power.

[0063] Alternatively, supply power control section 115 may set the power value of the maximum supply power by multiplying the power value of the power difference by a coefficient that is equal to or greater than 0 and equal to or less than 1.

[0064] Furthermore, when the supply power control unit 115 sets the power obtained by multiplying the power value of the power difference by a coefficient that is equal to or greater than 0 and equal to or less than 1 as the maximum supply power, the supply power control unit 115 may change the coefficient according to the ratio of the power value of the power difference to the power value of the allowable power. That is, when the power value of the power difference is larger than the power value of the allowable power, the supply power control unit 115 may increase the coefficient, and when the power value of the power difference is smaller than the power value of the allowable power, the supply power control unit 115 may decrease the coefficient. In this way, when the power value of the power difference is larger than the power value of the allowable power, the coefficient is increased to increase the maximum supply power that can be supplied by the electric vehicle power supply device 21, and the supply power supplied to the electric vehicle side power storage system 41 provided in the electric vehicle can be set to be large. When the power value of the power difference is smaller than the power value of the allowable power, the coefficient is decreased to decrease the maximum supply power, and the possibility that power will not be supplied from the main breaker MB to the target space load 31 due to the target space power consumption exceeding the allowable power can be reduced.

[0065] When supply power control section 115 changes the coefficient according to the power value of the power difference with respect to the power value of the allowable power, the coefficient may be changed as shown in Table 1, for example. TIFF0007648812000002.tif30108Table 1

[0066] Therefore, by setting the maximum supply power so that the maximum supply power is equal to or smaller than the power difference (i.e., equal to or less than the power difference), the supply power control unit 115 can set the maximum supply power so as not to exceed the allowable power.

[0067] The power multiplied by the coefficient and the margin power difference obtained by subtracting the margin power are also called "calculated power."

[0068] The coefficient or margin power may be arbitrarily set by a user (a user or an installer, etc.). More specifically, the user may start a predetermined application (for example, a dedicated application or a browser application for using a Web service) on a terminal such as a smartphone, and the coefficient or margin power input by an input operation on the application may be transmitted as coefficient information or margin power information to the control device 11 or the electric vehicle power supply device 21 via a network. The coefficient or margin power may be repeatedly set on a predetermined schedule. That is, the coefficient or margin power may be set by the user for each predetermined time unit of a day (for example, 0.5 hour unit, 1 hour unit, etc.) or for each period unit (for example, a unit preset on the system such as a day of the week, a week, a month, morning, afternoon, night, etc.), and after the user sets it, the coefficient or margin power may be set as set for the corresponding time zone or period (day of the week, week, month, etc.). Alternatively, two or more settings with different coefficient or margin power settings may be prepared in advance on the system and selected according to a user operation (for example, a first setting with a coefficient of 1 or margin power of 0 may be selected during the nighttime hours, and a second setting with a coefficient of less than 1 or margin power of more than 0 may be selected during other hours). Furthermore, instead of the coefficient or margin power, the user may be able to directly set the maximum supply power. As described above, various information may be transmitted from the terminal by directly communicating with the control device 11 or the electric vehicle power supply device 21 via a network, and / or the information may be transmitted from the terminal to a server via a network, and then transmitted from the server to the control device 11 or the electric vehicle power supply device 21 via the network.

[0069] Next, in a case where the control device 11 does not have a function of calculating the maximum supply power and the electric vehicle power supply device 21 has a function of calculating the maximum supply power, the supply power control unit 115 transmits, for example, target space power consumption information used to calculate the maximum supply power to the electric vehicle power supply device 21 via, for example, the fourth communication cable CC4. On the other hand, the electric vehicle power supply device 21 may be provided with part of the functions of the above-mentioned supply power control unit 115 as a functional unit (for example, the supply power control unit 213 in FIG. 6 ), and may set the maximum supply power similarly to the supply power control unit 115 based on the target space power consumption information received from the control device 11. In this case, the allowable power storage unit 112 and the power difference setting unit 114 may be provided in the electric vehicle power supply device 21, and the allowable power information and the power difference information may be transmitted to the electric vehicle power supply device 21.

[0070] Therefore, by setting the maximum supply power so that the maximum supply power is equal to or smaller than the power difference (i.e., equal to or less than the power difference), the electric vehicle power supply device 21 can set the maximum supply power so as not to exceed the allowable power.

[0071] <Configuration of the electric vehicle power supply device 21> 5, the electric vehicle power supply device 21 includes a power source power receiving unit 211 that receives power from a power source, and an electric vehicle power supply unit 212 that supplies supply power to the electric vehicle side power storage system 41. Note that it is preferable that the electric vehicle power supply device 21 conforms to predetermined standards such as SAEJ1772 and IEC61851 / 62196.

[0072] As described above, the electric vehicle power supply unit 212 supplies supply power (which can also be called charging power since it is mainly charging power) to the electric vehicle side power storage system 41. The supply power is controlled in the electric vehicle side power storage system 41 based on the maximum supply power information of the received power. However, without being limited to this, the supply power may be controlled in the electric vehicle power supply unit 212 based on the maximum supply power information and electric vehicle related information (for example, information on the mounted storage battery (current amount of stored power, temperature, voltage, etc.) and information on the state of the electric vehicle (temperature, devices in operation, etc.)), or based on supply power instruction information received from the electric vehicle side power storage system 41. The supply power instruction information may be, for example, information instructing the supply power in a predetermined period. More specifically, for example, in a configuration in which power supply having a predetermined duty ratio is performed from the electric vehicle power supply device 21, the supply power instruction information may be instruction information that specifies the duty ratio.

[0073] The information processing unit 219 is a functional unit that manages information processing such as receiving or transmitting specified information in the electric vehicle power supply device 21, reading information from a specified memory unit, and storing information in a specified memory unit, and for example, transmits maximum supply power information received from the control device 11 via the communication line of the eighth wiring W8.

[0074] <Configuration of Electric Vehicle Side Power Storage System 41> The electric vehicle power supply control system 1 includes an electric vehicle side power storage system 41 provided in the electric vehicle. The electric vehicle side power storage system 41 includes a supplied power receiving unit 411 that receives supplied power from the electric vehicle power supply unit 212 of the electric vehicle power supply device 21, a storage battery 412 in which the received power is stored, a received power control unit 413 that controls the received power, and an information processing unit 419. In this manner, the received power received from the electric vehicle power supply unit 212 of the electric vehicle power supply device 21 can be stored in the storage battery 412.

[0075] The electric vehicle side power storage system 41 is generally provided inside the body of the electric vehicle. However, the electric vehicle side power storage system 41 may be provided outside the body of the electric vehicle.

[0076] The supply power receiving unit 411 receives supply power from the electric vehicle power supply unit 212 of the electric vehicle power supply device 21. When the supply power is alternating current (AC), the supply power receiving unit 411 preferably has an alternating current / direct current (AC / DC) conversion function. Furthermore, the supply power receiving unit 411 controls the received supply power to a predetermined received power based on the control of the received power control unit 413 described later.

[0077] As shown in FIG. 1, the eighth wiring W8 has one end connected to the electric vehicle power supply unit 212 of the electric vehicle power supply device 21 so that the supply power can be conducted, and the other end connected to the supply power receiving unit 411 of the electric vehicle side power storage system 41.

[0078] The storage battery 412 may be any existing storage battery as long as it is capable of storing the received power. As an example, the supply power receiving unit 411 and the storage battery 412 may be connected by a wire (not shown), or may be a known wireless charging method.

[0079] For example, when no power is stored in the storage battery 412 or when the power stored in the storage battery 412 is not sufficient to operate the power storage system 41, the electric vehicle side power storage system 41 consumes at least a portion of the received power received by the supply power receiving unit 411 to operate and charge the storage battery 412. However, when the amount of power stored in the storage battery 412 is sufficient to operate the electric vehicle side power storage system 41, the electric vehicle side power storage system 41 receives the power necessary for the operation of the electric vehicle side power storage system 41 from the power charged in the storage battery 412.

[0080] The received power control unit 413 controls the received power (charging power) to be optimal at a power (current) equal to or less than the maximum supplyable power, according to maximum supply power information received from the electric vehicle power supply device 21 (for example, information indicating a duty ratio corresponding to the maximum supply power. Note that this includes when the control device 11 generates maximum supply power information, this being received by the electric vehicle power supply device 21 and being transmitted from the electric vehicle power supply device 21) and electric vehicle-related information (for example, information about the installed storage battery (current amount of stored power, temperature, voltage, etc.) and information about the state of the electric vehicle (temperature, equipment in operation, etc.)).

[0081] The information processing unit 419 is a functional unit that manages information processing such as receiving or transmitting predetermined information in the electric vehicle side power storage system 41, reading information from a predetermined storage unit, and storing information in a predetermined storage unit.

[0082] <Modification of the first embodiment> Fig. 7 is a diagram showing a modification of the present embodiment 1. Regarding the electric vehicle power supply control system 1 of this modification, only the parts different from the electric vehicle power supply control system 1 of the present embodiment 1 will be described. In this modification shown in Fig. 7, a breaker EVB (e.g., a ground fault breaker) for the electric vehicle power supply device 21 provided in the distribution board DB in the first embodiment is connected to an electric power meter EM.

[0083] That is, the sixth wiring W6 has one end connected to the power meter EM and the other end connected to a power receiving portion of the breaker EVB for the electric vehicle power supply device 21 so that power can be passed therethrough.

[0084] The seventh wiring W7 has one end connected to the power supply section of the breaker EVB for the electric vehicle power supply device 21 so that electric power can be passed, and the other end connected to the power supply power receiving section 211 of the electric vehicle power supply device 21.

[0085] With this configuration, it is possible to install a breaker EVB by only working on the power meter EM outside the target space, without the need to install a separate breaker EVB on the distribution board DM inside the target space.

[0086] In particular, when the sensors are provided on the second wiring W2 and the third wiring W3, unlike the first embodiment, the power consumption of the electric vehicle power supply device 21 is not included in the target space power consumption, and the control device 11 cannot detect the power consumption of the electric vehicle power supply device 21. Therefore, the supply power control unit 115 may acquire power consumption information of the electric vehicle power supply device 21 via, for example, the fourth communication cable CC4, and further set the power obtained by subtracting the power consumption of the electric vehicle power supply device 21 from the power indicated by the power difference as the maximum supply power. This can be similarly processed by the supply power control unit 213 when setting the maximum supply power in the electric vehicle power supply device 21 as exemplified in FIG. 6. That is, the electric vehicle power supply device 21 receives the target space power consumption information via the fourth communication cable CC4, and acquires the power consumption information of the electric vehicle power supply device 21 within the electric vehicle power supply device 21, and the supply power control unit 213 can similarly process based on both pieces of power consumption information.

[0087] <Embodiment 2> The electric vehicle power supply control system 1 of the second embodiment is a different embodiment from the electric vehicle power supply control system 1 of the first embodiment. Regarding the electric vehicle power supply control system 1 of the second embodiment, only the parts different from the electric vehicle power supply control system 1 of the first embodiment will be described.

[0088] 8 is a diagram showing an example of an electric vehicle power supply control system 1 including a power generation device 51 according to the present embodiment 2. The electric vehicle power supply control system 1 of the embodiment 2 differs from the electric vehicle power supply control system 1 of the embodiment 1 in that it further includes a power generation device 51.

[0089] 10 is a diagram showing an example of an electric vehicle power supply control system 1 according to the present embodiment 2. The electric vehicle power supply control system 1 of the embodiment 2 differs from the electric vehicle power supply control system 1 of the embodiment 1 in that the control device 11 includes a generated power measuring unit 116 that measures the generated power of the power generation device 51, instead of the target space power measuring unit 113.

[0090] The electric vehicle power supply control system 1 of the second embodiment also differs from the electric vehicle power supply control system 1 of the first embodiment in that it further includes a second current sensor CS2.

[0091] The power generation device 51 is a power generation device (including so-called renewable energy power generation devices or including natural energy power generation devices) that generates electricity using at least one of sunlight, wind power, hydroelectric power, geothermal power, solar heat, heat in the atmosphere or other heat present in nature, or biomass (organic matter derived from plants and animals). The power generation device 51 is a power generation device installed in the target space, and in the case of a solar power generation device or a wind power generation device, for example, the power generation device 51 may be installed on the roof R of the house HU or in a garden (not shown).

[0092] Furthermore, when the power generation device 51 outputs DC power, a DC / AC converter 61 may be provided. The DC / AC converter 61 is a device that converts the DC power generated by the power generation device 51 into AC power. However, when the power generation device 51 outputs AC power, the DC / AC converter 61 does not need to be provided.

[0093] The ninth wiring W9 has one end connected to the power generation device 51 so as to be able to pass electric power, and the other end connected to a power receiving unit of the DC / AC converter 61. As described above, when the power generation device 51 outputs AC power, the DC / AC converter 61 does not need to be provided, and the other end of the ninth wiring W9 may be connected to the distribution board DB.

[0094] The tenth wiring W10 has one end connected to the output part of the DC / AC converter 61 so that electric power can be passed, and the other end connected to the power receiving part of the main breaker MB built into the distribution board DB.

[0095] FIG. 9 is a diagram showing an example of a distribution board DB according to the second embodiment. The electric vehicle power supply control system 1 of the second embodiment is also different from the electric vehicle power supply control system 1 of the second embodiment in that the power receiving unit of the main breaker MB is connected not only to the first wiring W1 through which commercial power flows, but also to the tenth wiring W10 through which generated power flows. If the power receiving unit of the main breaker MB is connected not only to the first wiring W1 through which commercial power flows, but also to the tenth wiring W10 through which generated power flows, the power receiving unit of the main breaker MB can receive not only commercial power, but also generated power (also referred to as "target space generated power"). Note that when the received power is supplied to the target space load 31 and the electric vehicle power supply device 21, the target space generated power is configured to be prioritized over commercial power. This is because, generally, when the target space power consumption is equal to or less than the target space power generation, there is no need to take in power from commercial power and it is possible to cover the power consumption with only the target space power generation, and when the target space power consumption is greater than the target space power generation, only the difference is taken in from commercial power. However, without being limited to this, for example, when the second current sensor CS2 or the second voltage sensor CV2 detects that the target space power generation is being output, the connection destination may be switched by a switching device or the like, so that the target space power generation is given priority.

[0096] The second current sensor CS2 measures the current of the ninth wiring W9 or the tenth wiring W10, and generates second power data (current data) based on the measured current.

[0097] The third communication cable CC3 has one end connected to the second current sensor CS2 and the other end connected to the control device 11 so that second power data can be transmitted from the second current sensor CS2 to the control device 11.

[0098] As in the first embodiment, a second voltage sensor VS2 may be provided instead of or in addition to the second current sensor CS2 and the third communication cable CC3, and the voltage of the ninth wiring W9 or the tenth wiring W10 may be measured to generate second power data (voltage data) based on the measured voltage. Also, while Fig. 8 illustrates a configuration in which the sensor is provided outside the distribution board DB, the present invention is not limited to this, and the sensor may be built into the distribution board DB and provided on the target wiring.

[0099] Here, similarly to the first embodiment, the information transmitted by supply power control unit 115 may differ depending on whether or not control unit 11 has a function for calculating the maximum supply power. That is, first, when control unit 11 has a function for calculating the maximum supply power, supply power control unit 115 generates maximum supply power information indicating the maximum supply power that is the power that can be supplied by electric vehicle power supply device 21, for example, based on the above-mentioned target space power generation power.

[0100] The supply power control unit 115 may compare the allowable power with the target space power generation power, and if it is determined that the target space power generation power is equal to or less than the allowable power value, set the entire power value of the target space power generation power as the maximum supply power.

[0101] The allowable power in the configuration of the present invention is also similar to that in embodiment 1, since the allowable power that can be consumed in the target space is derived from the allowable current (allowable power) of the main breaker MB. Even if the target space generated power is equal to or less than the allowable power value, if the supplied power control unit 115 sets all of the power values ​​of the target space generated power as the maximum supply power, when the electric vehicle power supply device 21 supplies the maximum supply power to the electric vehicle, if the target space power consumption increases, the sum of the supply power by the electric vehicle power supply device 21 (in this case, the target space generated power) and the target space power consumption may exceed the allowable power, so the margin target space generated power, which is the target space generated power minus the margin power, may be set as the maximum supply power.

[0102] Also, similarly to the first embodiment, the supply power control unit 115 may set the power value of the maximum supply power by multiplying the power value of the power generated in the target space by a coefficient not less than 0 and not more than 1. Details are omitted since they may be similar to the case in the first embodiment where the power difference is multiplied by a coefficient (i.e., the "power difference" in the first embodiment is replaced with "power generated in the target space").

[0103] Therefore, by setting the maximum supply power so that the maximum supply power is equal to or smaller than the target space power generation power (i.e., equal to or less than the target space power generation power), the supply power control unit 115 can set the maximum supply power so that it does not exceed the allowable power.

[0104] Also, as in the first embodiment, the coefficient and margin power may be arbitrarily set by a user (a user or a builder, etc.). In the second embodiment, instead of or in addition to the configuration of the first embodiment, for example, a mode in which the coefficient is set relatively higher or the margin power is set relatively lower in a daytime period including daytime than in other periods may be selected by the user. This allows a power generation device that generates a large amount of power in the daytime, such as a solar power generation device, to use a large amount of generated power for charging, and it becomes possible to reduce the amount of power purchased from the power company. Alternatively, a mode in which the coefficient is set relatively higher or the margin power is set relatively lower in a nighttime period including night than in other periods may be selected by the user. This allows, for example, surplus power to be sold during the daytime, and it becomes possible to mainly charge during the nighttime period when electricity rates are low.

[0105] Next, in the case where the control device 11 does not have a function for calculating the maximum supply power and the electric vehicle power supply device 21 has a function for calculating the maximum supply power, the supply power control unit 115 transmits, for example, target space generated power information used for calculating the maximum supply power to the electric vehicle power supply device 21. On the other hand, the electric vehicle power supply device 21 may be provided with part of the functions of the above-mentioned supply power control unit 115 as a functional unit (supply power control unit 213) in the same manner as in the first embodiment, and may set the maximum supply power in the same manner as the supply power control unit 115, based on the target space generated power information received from the control device 11.

[0106] <Modification of the second embodiment> Fig. 11 is a diagram showing a modification of the present embodiment 2. Regarding the electric vehicle power supply control system 1 of this modification, only the parts different from the electric vehicle power supply control system 1 of the present embodiment 2 will be described. In this modification shown in Fig. 11, the breaker EVB for the electric vehicle power supply device 21 provided in the distribution board DB in the present embodiment 2 is connected to an electric power meter EM.

[0107] That is, the sixth wiring W6 has one end connected to the power meter EM and the other end connected to a power receiving portion of the breaker EVB for the electric vehicle power supply device 21 so that power can be passed therethrough.

[0108] The seventh wiring W7 has one end connected to the power supply section of the breaker EVB for the electric vehicle power supply device 21 so that electric power can be passed, and the other end connected to the power supply power receiving section 211 of the electric vehicle power supply device 21.

[0109] With this configuration, it is possible to install a breaker EVB by only working on the power meter EM outside the target space, without the need to install a separate breaker EVB on the distribution board DB inside the target space.

[0110] <Embodiment 3> The electric vehicle power supply control system 1 of the third embodiment can be said to be a combination of the electric vehicle power supply control system 1 of the first embodiment and the electric vehicle power supply control system 1 of the second embodiment. Only the parts that differ from the electric vehicle power supply control systems 1 of the first and second embodiments will be described.

[0111] FIG. 12 is a diagram showing an example of an electric vehicle power supply control system 1 including a power generation device 51 according to the third embodiment. The electric vehicle power supply control system 1 of the third embodiment differs from the electric vehicle power supply control system 1 of the first embodiment in that it has a first current sensor CS1 like the electric vehicle power supply control system 1 of the first embodiment, and also has a second current sensor CS2 like the electric vehicle power supply control system 1 of the second embodiment. The configuration of the distribution board DB may be the same as in the second embodiment. Also, like the first embodiment, the control device 11 may be provided inside the distribution board.

[0112] 13 is a diagram showing an example of an electric vehicle power supply control system 1 according to the present embodiment 3. The electric vehicle power supply control system 1 of the embodiment 3 differs from the electric vehicle power supply control systems 1 of the embodiments 1 and 2 in that the control device 11 has the target space power measurement unit 113 of the embodiment 1, and in addition, has a generated power measurement unit 116 that measures the target space generated power of the power generation device 51.

[0113] Here, as described above, in the third embodiment, the target space power measuring unit 113 and the generated power measuring unit 116 are provided, so that the supply power control unit 115 in the third embodiment is capable of control taking into account both the target space power consumption and the target space generated power in addition to, or instead of, the processing of the supply power control unit 115 in the first and second embodiments.

[0114] Here, similarly to the first and second embodiments, the information transmitted by the supply power control unit 115 may differ depending on whether or not the control device 11 has a function for calculating the maximum supply power. That is, first, when the control device 11 has a function for calculating the maximum supply power, the supply power control unit 115 generates maximum supply power information indicating the maximum supply power that is the power that can be supplied by the electric vehicle power supply device 21, for example, based on the above-mentioned target space power consumption and target space generated power.

[0115] More specifically, in the configuration of the second embodiment, it is assumed that the target space power generation is not necessarily large, and there is no effect even if all of the target space power generation is set as the maximum supply power, or even if not, it is assumed that the total of the power supply by the electric vehicle power supply device 21 (in this case, the target space power generation power) and the target space power consumption exceeds the allowable power due to the margin power or coefficient. However, the supply power control unit 115 may, for example, compare the power difference, which is the difference between the allowable power and the target space power consumption, with the target space power generation power, and if the target space power generation power is smaller than the power difference, set the target space power generation power as the maximum supply power. Then, for example, if the target space power generation power is larger than the power difference, the supply power control unit 115 may set the power difference as the maximum supply power. By setting the maximum supply power in this way, operation is possible without the total of the power supply by the electric vehicle power supply device 21 (in this case, the target space power generation power) and the target space power consumption exceeding the allowable power.

[0116] In the third embodiment as well, the above-mentioned margin power and coefficient may be adopted in setting the maximum supply power.

[0117] As in the first and second embodiments, the coefficients and margin power may be arbitrarily set by a user (eg, a user or an installer).

[0118] Next, in a case where the control device 11 does not have a function of calculating the maximum supply power and the electric vehicle power supply device 21 has a function of calculating the maximum supply power, the supply power control unit 115 transmits, for example, target space power consumption information and target space generated power information used to calculate the maximum supply power to the electric vehicle power supply device 21. On the other hand, the electric vehicle power supply device 21 may have part of the functions of the above-mentioned supply power control unit 115 as a functional unit (supply power control unit 213) as in the first and second embodiments, and may set the maximum supply power in the same manner as the supply power control unit 115 based on the target space power consumption information and the target space generated power information received from the control device 11. In this case, the allowable power storage unit 112 and the power difference setting unit 114 may be provided in the electric vehicle power supply device 21, and the allowable power information and the power difference information may be transmitted to the electric vehicle power supply device 21.

[0119] <Modification of the third embodiment> Fig. 14 is a diagram showing a modification of the present embodiment 3. Regarding the electric vehicle power supply control system 1 of this modification, only the parts different from the electric vehicle power supply control system 1 of the embodiment 3 will be described. In this modification shown in Fig. 14, the breaker EVB for the electric vehicle power supply device 21 provided in the distribution board DB in the embodiment 3 is connected to an electric power meter EM.

[0120] That is, the sixth wiring W6 has one end connected to the power meter EM and the other end connected to a power receiving portion of the breaker EVB for the electric vehicle power supply device 21 so that power can be passed therethrough.

[0121] The seventh wiring W7 has one end connected to the power supply section of the breaker EVB for the electric vehicle power supply device 21 so that electric power can be passed, and the other end connected to the power supply power receiving section 211 of the electric vehicle power supply device 21.

[0122] With this configuration, it is possible to install a breaker EVB by only working on the power meter EM outside the target space, without the need to install a separate breaker EVB on the distribution board DB inside the target space.

[0123] Furthermore, particularly when the first current sensor CS1 or the first voltage sensor CV1 is provided on the second wiring W2 or the third wiring W3 (not shown), unlike the third embodiment, the power consumption of the electric vehicle power supply device 21 is not included in the target space power consumption and the control device 11 cannot sense the power consumption of the electric vehicle power supply device 21, so that the supplied power control unit 115 may acquire power consumption information of the electric vehicle power supply device 21 via, for example, the fourth communication cable CC4, and further set the power obtained by subtracting the power consumption of the electric vehicle power supply device 21 from the power indicated by the power difference as the power difference information to be used by the supplied power control unit 115. This can also be processed in the supplied power control unit 213 in the same way when setting the maximum supply power in the electric vehicle power supply device 21. That is, the electric vehicle power supply device 21 receives the target space power consumption information via the fourth communication cable CC4, and acquires the power consumption information of the electric vehicle power supply device 21 within the electric vehicle power supply device 21, so that the supply power control unit 213 can process the information in the same manner based on both pieces of power consumption information.

[0124] <Other Modifications 1> In the first to third embodiments, examples have been shown in which the control device 11 and at least one of the first current sensor CS1, the first voltage sensor CV1, the second current sensor CS2, the second voltage sensor CV2, and the electric vehicle power supply device 21, or the electric vehicle power supply device 21 and the electric vehicle side power storage system 41, or the power meter EM and the control device 11 or the electric vehicle power supply device 21, etc. transmit and receive various information to each other via wiring or communication cables, but instead of or in addition to this, a wireless communication unit (not shown) may be provided to transmit and receive various information via a network.

[0125] The network performs communication according to communication rules such as TCP / IP (Transmission Control Protocol / Internet Protocol). The network NW may be a virtual line. The virtual line may be, for example, a VPN (Virtual Private Network), an Internet VPN (Virtual Private Network), an entry VPN (Virtual Private Network), an IP (Internet Protocol)-VPN (Virtual Private Network), a wide area Ethernet, or the like.

[0126] When transmitting and receiving various information via a network, the information may be once transmitted to a server via the network, and then transmitted from the server via the network.

[0127] The network may be a wireless network. The wireless network WNW may be a short-range communication interface such as Bluetooth (registered trademark), BLE (Bluetooth Low Energy), or Wi-Fi. The control device 11 and the first current sensor CS1 may directly transmit and receive various information via the wireless network.

[0128] <Other Modifications 2> In the first to third embodiments, the control device 11, the first current sensor CS1, the first voltage sensor CV1, and the like are provided for the distribution board DB. Instead of or in addition to this, the power meter EM may have at least some of the functions of the control device 11 and the various sensors. That is, when the power meter EM is a so-called smart meter, the power meter EM itself may acquire the target space power consumption information. In this case, for example, (1) instead of the various sensors, the power meter EM may be capable of transmitting the target space power consumption information to the control device 11, (2) instead of the control device 11 and the various sensors, the power meter EM may be capable of transmitting the target space power consumption information directly to the electric vehicle power supply device 21 (in this case, the maximum supply power is set by the electric vehicle power supply device 21), or (3) instead of the control device 11 and the various sensors, the power meter EM may be capable of setting the maximum supply power from the target space power consumption information and transmitting the maximum supply power information to the electric vehicle power supply device 21. Furthermore, in the case where the power generation device 51 is provided, the target space power generation information may be acquired by the power meter EM, and the maximum supply power may be set as in the third embodiment.

[0129] <Other Modification 3> It is not precluded from having devices not explicitly stated in the first to third embodiments, and for example, a lightning arrester (SPD) may be provided for the electric vehicle power supply device 21. Alternatively, in the second or third embodiment, a functional distribution board (for example, a device for switching the connection of the distribution board to the power generation device 51 or the power storage device (not shown) when a power outage occurs) may be provided between the DC / AC converter 61 and the distribution board DB.

[0130] The above-described embodiment is merely an example for facilitating understanding of the present invention, and is not intended to limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and it goes without saying that the present invention includes equivalents thereof. [Explanation of symbols]

[0131] 1 Electric vehicle power supply control system 11 Control device 111 Power supply power receiving section 112 Allowable power memory unit 113 Target space power measurement unit 114 Power difference measurement unit 115 Power supply control section 116 Power generation measurement section 119 Information Processing Department 21 Power supply device for electric vehicles 211 Power supply power receiving section 212 Electric Vehicle Power Supply Unit 213 Power supply control section 219 Information Processing Department 31 Load within the target space 31G Load group within the target space 41 Energy Storage System 411 Power supply receiving section 412 Storage battery 413 Instruction information generation unit 419 Information Processing Department 51 Power generation equipment 61 DC / AC converter EV Electric Vehicle DB distribution board MB Main breaker ELB Earth Leakage Circuit Breaker BB Branch Breaker BBG Branch Breaker Group VR variable resistor CS1 First current sensor CS2 Second current sensor VS1 First voltage sensor VS2 Second voltage sensor HU house R Roof E Commercial power line EP utility pole W1 First Wire W2 Second Wire W3 Third Wire W4 Fourth Wire W4G 4th wiring group SP branch point SW branch wiring SWG Branch wiring group W5 Fifth Wire W6 6th Wire W7 Seventh Wire W8 8th Wire W9 9th Wiring W10 10th wire EL wire +EL +100V wire 0EL 0V wire -EL -100V wire CC1 First communication cable CC2 Second communication cable CC3 3rd Communication Cable CC4 4th Communication Cable

Claims

1. An electric vehicle power supply control system including a control device that transmits transmission information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, The control device includes: a target space power measuring unit that measures the target space power consumption supplied to a target space load that is a load that consumes power in the target space; a supply power control unit that transmits, as the transmission information, calculated power information indicating a calculated power obtained by multiplying a power difference obtained by subtracting the target space power consumption from an allowable power that is an upper limit of power that can be consumed in the target space by a coefficient that is equal to or greater than 0 and equal to or less than 1, to the electric vehicle power supply device; and Equipped with an electric vehicle power supply control system, wherein the coefficient is set to be smaller as a power value of a power difference with respect to a power value of the allowable power becomes smaller;

2. An electric vehicle power supply control system including a control device that transmits transmission information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, The control device includes: a target space power measuring unit that measures the target space power consumption supplied to a target space load that is a load that consumes power in the target space; a power generation measuring unit for measuring the power generation in the target space generated by a power generation device provided in the target space; a supply power control unit that transmits, as the transmission information, calculated power information indicating a calculated power obtained by multiplying a power difference obtained by subtracting the target space power consumption from an allowable power that is an upper limit of power that can be consumed in the target space by a coefficient that is equal to or greater than 0 and equal to or less than 1, to the electric vehicle power supply device; and Equipped with The allowable power is a power indicated by a breaker capacity in the target space or a power that is a predetermined value lower than the breaker capacity, an electric vehicle power supply control system, wherein the coefficient is set to be smaller as a power value of a power difference with respect to a power value of the allowable power becomes smaller;

3. Further, a common breaker is provided for wiring that supplies power to the electric vehicle power supply device and wiring that supplies power to the control device.

3. The electric vehicle power supply control system according to claim 1 or 2.

4. A program for controlling a control device that transmits transmission information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, The control device A step of measuring a target space power consumption supplied to a load in the target space that is a load that consumes power in the target space; transmitting, as the transmission information to the electric vehicle power supply device, calculated power information indicating a calculated power obtained by multiplying a power difference obtained by subtracting the target space power consumption from an allowable power that is an upper limit of power that can be consumed in the target space by a coefficient that is equal to or greater than 0 and equal to or less than 1; Run the command, The coefficient is set to be smaller as a power value of a power difference with respect to a power value of the allowable power becomes smaller.

5. A program for controlling a control device that transmits transmission information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, The control device A step of measuring a target space power consumption supplied to a load in the target space that is a load that consumes power in the target space; A step of measuring the power generated in the target space by a power generation device provided in the target space; transmitting, as the transmission information to the electric vehicle power supply device, calculated power information indicating a calculated power obtained by multiplying a power difference obtained by subtracting the target space power consumption from an allowable power that is an upper limit of power that can be consumed in the target space by a coefficient that is equal to or greater than 0 and equal to or less than 1; Run the command, The allowable power is a power indicated by a breaker capacity in the target space or a power that is a predetermined value lower than the breaker capacity, The coefficient is set to be smaller as a power value of a power difference with respect to a power value of the allowable power becomes smaller.

6. A control method by a control device that transmits transmission information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, comprising: The control device A step of measuring a target space power consumption supplied to a load in the target space that is a load that consumes power in the target space; transmitting, as the transmission information to the electric vehicle power supply device, calculated power information indicating a calculated power obtained by multiplying a power difference obtained by subtracting the target space power consumption from an allowable power that is an upper limit of power that can be consumed in the target space by a coefficient that is equal to or greater than 0 and equal to or less than 1; Run A method according to claim 1, wherein the coefficient is set to be smaller as a power value of a power difference with respect to a power value of the allowable power becomes smaller.

7. A control method by a control device that transmits transmission information for setting a maximum supply power in an electric vehicle power supply device that supplies power to an electric vehicle, comprising: The control device A step of measuring a target space power consumption supplied to a load in the target space that is a load that consumes power in the target space; A step of measuring the power generated in the target space by a power generation device provided in the target space; transmitting, as the transmission information to the electric vehicle power supply device, calculated power information indicating a calculated power obtained by multiplying a power difference obtained by subtracting the target space power consumption from an allowable power that is an upper limit of power that can be consumed in the target space by a coefficient that is equal to or greater than 0 and equal to or less than 1; Run The allowable power is a power indicated by a breaker capacity in the target space or a power that is a predetermined value lower than the breaker capacity, A method according to claim 1, wherein the coefficient is set to be smaller as a power value of a power difference with respect to a power value of the allowable power becomes smaller.

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