Electric vehicle power supply control system, program, and method

Abstract

[Problem] The present disclosure is to provide an electric vehicle power supply control system, a program, and a method which make it possible to control maximum supply power that can be supplied by an electric vehicle power supply apparatus. [Solution] One aspect of the present disclosure is an electric vehicle power supply control system including a control device that transmits information for setting maximum supply power in an electric vehicle power supply apparatus that supplies power to an electric vehicle. The control device comprises: a target-space power measurement unit for measuring a target-space power consumption that is power supplied to a target-space load which is a load consuming power in the target space and / or a generation power measurement unit for measuring a target-space generation power that is generated by a power generation device which is provided in the target space; and a supply power control unit for transmitting, to the electric vehicle power supply apparatus, target-space power consumption information or target-space generation power information, calculated power information, and / or maximum-supply power information.

Description

Electric vehicle power supply control system, program, and method

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

[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 PHEVs (PHVs) using a commercial power source in the home (see Patent Document 1). Patent Document 1 discloses 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.

[0003] JP 2012-125091 A

[0004] The distribution board device disclosed in Patent Document 1 determines 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, preventing the PHV / EV from charging and supplying power within the home. If it determines that the current consumption value does not exceed the allowable current value, it closes the electromagnetic switch and charges the PHV / EV at a current value Ic, which is the allowable current value Ib minus the current consumption value Ia. However, the controller 16 included in the distribution board device of Patent Document 1 merely determines 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 precisely controlling the current value Ic for charging electric vehicles such as PHVs / EVs. The controller 16 is also configured to receive the outputs of the branch breakers for all loads (such as home appliances) and control the current supply to each load, but having the controller 16 also supply current to loads such as home appliances in this way would complicate the structure and potentially increase the installation costs.In addition, charging electric vehicles via a power supply device dedicated to charging has become common in recent years, and there is a demand for a system that can precisely control the maximum supply power according to the power consumption in the target space while accommodating such electric vehicle power supply devices.

[0005] Therefore, the present disclosure aims to provide an electric vehicle power supply control system, program, and method that can precisely set the maximum supply power in accordance with the power consumption and power generation within a target space using a control device or an electric vehicle power supply device, 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.

[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 includes at least one of a target space power measurement unit that measures target space power consumption supplied to a target space load that 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 that indicates the target space power consumption, target space generated power information that indicates 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 that indicates the maximum supply power.

[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 within a target space.

[0008] 1 is a diagram showing an example of the configuration of an electric vehicle power supply control system according to a first embodiment. FIG. 2 is a diagram showing an example of a distribution board according to the first embodiment. FIG. 3 is a diagram showing an example of a distribution board having a built-in control device according to the first embodiment. FIG. 4 is a diagram showing an example of electric wires according to the first embodiment. FIG. 5 is a diagram showing an example of an electric vehicle power supply control system according to the first embodiment. FIG. 6 is a diagram showing another example of an electric vehicle power supply control system according to the first embodiment. FIG. 7 is a diagram showing an example of a configuration of an electric vehicle power supply control system including a power generation device according to a second embodiment. FIG. 8 is a diagram showing an example of a distribution board according to the second embodiment. FIG. 9 is a diagram showing an example of an electric vehicle power supply control system according to the second embodiment. FIG. 10 is a diagram showing another example of the configuration of an electric vehicle power supply control system including a power generation device according to a third embodiment. FIG. 11 is a diagram showing an example of an electric vehicle power supply control system according to the third embodiment.

[0009] Hereinafter, embodiments 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, wherein 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 that is a load that consumes power in 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 that indicates the target space power consumption, target space generated power information that indicates 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 that indicates the maximum supply power. [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, wherein the control device comprises: a target space power measurement unit that measures target space power consumption supplied to a target space load that is a load that consumes power within the target space; and a supply power control unit that transmits at least one of target space power consumption information that indicates the target space power consumption, calculated power information that is calculated based on the target space power consumption, or maximum supply power information that indicates the maximum supply power to the electric vehicle power supply device. [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, wherein the control device comprises: a generated power measurement unit that measures a target space generated power generated by a power generation device provided in the target space; and a supplied 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.[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, wherein the control device comprises: a target space power measurement unit that measures target space power consumption supplied to a target space load that is a load that consumes power within the target space; 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 that indicates the target space power consumption and target space generated power information that indicates 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 that indicates the maximum supply power. [Item 5] The electric vehicle power supply control system according to any one of items 1 to 4, wherein the electric vehicle power supply device comprises: a maximum supply power information transmitter that generates maximum supply power information indicating the maximum supply power that can be supplied to the electric vehicle based on power information of at least one of the target space power consumption information, the target space generation power information, and the calculated power information, and transmits the maximum supply power information to the electric vehicle. [Item 6] The electric vehicle power supply control system according to any one of items 1 to 5, wherein the electric vehicle power supply device comprises: a maximum supply power information transmitter that transmits the received maximum supply power information to the electric vehicle. [Item 7] The electric vehicle power supply control system according to any one of items 1 to 6, further comprising an electric vehicle power supply device breaker for wiring that supplies power to the electric vehicle power supply device. [Item 8] The electric vehicle power supply control system according to item 7, wherein the electric vehicle power supply device breaker is provided in a distribution board of the target space. [Item 9] 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 of the target space. [Item 10] The electric vehicle power supply control system according to any one of items 1 to 9, wherein the control device is a power meter of the 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 program causing the control device to execute at least one of the following steps: measuring target space power consumption supplied to a target space load that is a load that consumes power in the target space, or measuring target space generated power generated by a power generation device provided in the target space; and transmitting 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. [Item 12] A control method using 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 method comprising the steps of: measuring target space power consumption supplied to a target space load that is a load that consumes power in the target space; or measuring target space generated power generated by a power generation device provided in the target space; and transmitting, 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.

[0011] <Configuration of electric vehicle power supply control system 1 according to the present invention> For example, Fig. 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 according to 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 of the present invention includes 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. The control device 11 includes at least one of a target space power measurement unit 113 that measures target space power consumption information that indicates target space power consumption supplied to a target space load 31, which is a load that consumes power within the target space, or a generated power measurement unit 116 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 to the electric vehicle power supply device 21 at least one of (1) target space power consumption information that indicates the target space power consumption, (2) target space generated power information that indicates the generated power generated by a power generation device provided 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 that indicates the maximum supply power. The "target space" here refers to a space that has a power supply facility, and may be, for example, a space such as an ordinary household or a small facility that is electrically equivalent to a home, such as a community center, but is not limited to these, and may be any building, structure, management area, or other space to which the above invention can be applied.

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

[0014] The program controls 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 causes the control device to execute at least one of the steps of measuring target space power consumption supplied to a target space load that is a load that consumes power in the target space, or measuring target space generated power generated by a power generation device provided in the target space, and transmitting 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 power generated by a power generation device provided 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 of 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 comprising: a step by the control device (11) of measuring, by the control device (11), at least one of a step of measuring target space power consumption supplied to a target space load (31) that is a load that consumes power in the target space, or a step of measuring target space generated power generated by a power generation device provided 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 power generated by a power generation device provided 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 can precisely set the maximum supply power according to the power consumption and power generation within the target space using the control device 11 and the electric vehicle power supply device 21.

[0018] First Embodiment

[0019] <Configuration of electric vehicle power supply control system 1 in embodiment 1> Fig. 1 is a diagram showing an example of the configuration of an electric vehicle power supply control system 1 according to embodiment 1. The electric vehicle power supply control system 1 in 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 an attachment part (not shown). However, the commercial power line E may be buried underground 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, and the other end of the power cable EC is connected to a power meter EM. The power meter EM is an electric meter that integrates 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 circuit 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 shuts off the circuit if an abnormality is detected. The main breaker MB is equipped with a power receiving unit and a power supply unit. The power receiving unit may be a power receiving terminal. The power supply unit may be a power supply terminal. The main breaker MB may also be referred to as a service breaker. Commercial power is 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] An earth leakage circuit breaker (ELB) is a device that cuts off a circuit when it detects a ground fault, preventing disasters. The earth leakage circuit breaker (ELB) includes a power receiving unit and a power supply unit. The power receiving unit may be a power receiving terminal. The power supply unit may be a power supply terminal. The earth leakage circuit breaker may be read as an earth leakage breaker or an ELCB (Earth Leakage Circuit Breaker).

[0026] A branch breaker BB is a device that shuts off only a circuit (branch circuit) that carries electricity from a distribution board to each room or outlet when the current exceeds the capacity of that circuit, preventing power outages throughout the house. The branch breaker BB includes a power receiving unit and a power supply unit. The power receiving unit may be a power receiving terminal. The power supply unit may be a power supply terminal. The branch breaker BB may also be referred to as a wiring-type 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 applied. 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 (described later), or with two wires, a 0V electric wire 0EL and a -100V electric wire -EL (described later), to receive approximately 100V. Alternatively, the first wiring W1 may be configured with two wires, a +100V electric wire +EL and a -100V electric wire -EL (described later), to receive 200V. Alternatively, the first wiring W1 may be configured with three wires, a +100V electric wire +EL, a -100V electric wire -EL, and a 0V electric wire 0EL (described later), to receive 100V or 200V. Note that similar configurations may be used for other wirings.

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

[0029] The third wiring W3 has one end connected to the power supply part of the earth leakage breaker ELB and the other end connected to the 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. Therefore, the third wiring W3 is connected to the power receiving units of all of the branch breakers BB included in the branch breaker group BBG (for simplicity of the drawings, in FIG. 2 and the like, the third wiring W3 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. 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, and all or part of the other end is connected to a 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, water heater, lighting fixtures, and cooking appliances, and includes a variety of loads.

[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 to this). 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 of 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. While the current sensor CS is shown in a simplified configuration connected to a wiring to be measured, such as the third wiring W3, it may also be connected to a wiring indicating a reference power (which may be 0 V) ​​for measuring the current (more specifically, a configuration in which the reference power wiring is clamped, for example). Furthermore, as described below, 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 (i.e., the wiring for the target space load 31, the wiring for the control device 11, and the wiring for the electric vehicle power supply device 21 may all or partly include a common current sensor, or each may be provided with a current sensor). Note that Figure 3 illustrates a configuration in which the first current sensor CS1 (and the first voltage sensor VS1) are built into the distribution board DB, but this is not limited to this, 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 through, and the other end connected to the power supply power receiving unit 111 of the control device 11. Furthermore, without being limited to this, the fifth wiring W5 may have a configuration in which, for example, one end is connected to 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 portion 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 if only the power consumption of the target space load 31 is to be grasped, the first current sensor CS1 and the first voltage sensor VS1 may be provided only on the third wire W3.

[0036] The seventh wiring W7 has one end connected to the power supply unit of the breaker EVB for the electric vehicle power supply device 21 so that electric power can be passed through, and the other end connected to the power supply power receiving unit 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 (or current data, which is also referred to as power data because the voltage is generally roughly constant (e.g., 100V or 200V); the same applies below) to the target space power measurement 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 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 is the sum of the current supplied to the target space loads 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 in the second wiring W2, the current in the third wiring W3, and the total current supplied to the target space loads 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 wires W, such as the second wire W2, the third wire W3, or the fourth wire W4. However, the first voltage sensor VS1 is not an essential component of the electric vehicle power supply control system 1. Alternatively, the first voltage sensor VS1 may be built into the control device 11 and connected to the fifth wire W5. When the first voltage sensor VS1 is connected to the second wire W2, the third wire W3, the fourth wire 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, and the other end is connected to the voltage data transmission unit of the first voltage sensor VS1, 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. The first voltage sensor VS1 generates voltage data of the measured voltage and transmits it from the voltage data transmitter 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 is also shown in the figure simply as being 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 one 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 measurement unit 113 of the control device 11 receives voltage data from the voltage data transmission 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 through, 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] 3 is a diagram showing an example of a distribution board DB having a built-in control device 11, as a modification of the first embodiment. That is, the control device 11 may be sized to be able to be built into the distribution board DB and 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. The 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 this embodiment. The voltage of the 0V electric wire 0EL is approximately 0V. The voltage of the +100V electric wire +EL is approximately +100V. The voltage of the −100V electric wire −EL is approximately −100V.

[0044] The first wiring W1 through the eighth wiring W8 may be configured as two wires: a 0V wire 0EL and a +100V wire +EL; two wires: a 0V wire 0EL and a −100V wire −EL; two wires: a +100V wire +EL and a −100V wire −EL; or three wires: a 0V wire 0EL, a +100V wire +EL, and a −100V wire −EL. Note that not all wirings W need to have the same wire EL configuration; upstream wirings W, such as the first wiring W1, may have the above three-wire configuration, while the seventh wiring W7 and the eighth wiring W8 may have any of the above two-wire configurations (particularly, a +100V wire +EL and a −100V wire −EL). A separate ground wire may also 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 ground 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.

[0045] 5 is a diagram showing an example of an electric vehicle power supply control system 1 according to this 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. Note that 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] Power is calculated as follows: Power = Voltage x Current. The unit of power is W, the unit of voltage is V, and the unit of current is A.

[0050] Because the commercial power received by each target space is generally a fixed value of approximately 100 V or approximately 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. Alternatively, the allowable power information may be stored by receiving the allowable power information via the 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 that is a predetermined value lower than the breaker capacity. Furthermore, if the allowable power storage unit 112 stores both the commercial power voltage value (V) 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 30 (A).

[0052] The information processing unit 119 is a functional unit that manages information processing in the control device 11, such as receiving or transmitting predetermined information, reading information from a predetermined storage unit, and storing information 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 information is previously stored in the allowable power storage unit 112 or not. When the allowable power storage unit 112 stores allowable power information 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 (e.g., storage date information or date and time information) so that the latest allowable power information can be identified. When the allowable power storage unit 112 does not store allowable power information and new allowable power information is input, the information processing unit 119 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 and a terminal device (for example, a mobile terminal device such as a personal computer or a smartphone) or an input / output port of a server are connected 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 via a predetermined wireless network via wireless communication from a personal computer, a server, a smartphone, or a mobile phone. 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 launched on a terminal such as a smartphone, and the allowable power input through an input operation on the application may be transmitted as the allowable power information. Various information may be transmitted from the terminal by communicating directly with the control device 11 or the electric vehicle power supply device 21 via a network, and / or may be transmitted from the terminal to a server via the network first, and then transmitted from the server to the control device 11 or the electric vehicle power supply device 21 via the network.

[0056] The allowable power information is stored in advance in the allowable power memory unit 112, and if 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 to accept the allowable power information in the information processing unit 119.

[0057] The target space power measurement unit 113 measures the target space power consumption supplied to the target space load 31, which is a load that consumes power within the target space. The target space power measurement unit 113 receives power data transmitted by the first current sensor CS1 as the target space power consumption. Alternatively, or in addition, the target space power measurement unit 113 receives power data (voltage data) transmitted by the first voltage sensor VS1 as the target space power consumption. Note that the above-mentioned "receiving power data as the target space power consumption" may include, for example, calculating power based on the power data (current data) transmitted by the first current sensor CS1 and reference voltage data, or based on the voltage data transmitted by the first voltage sensor VS1 and reference current data, 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 determining the power 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 in the target space may also include the power consumption of the control device 11 and the power consumption of the electric vehicle power supply device 21.

[0058] The power difference setting unit 114 sets the power difference, which is the difference between the allowable power and the power consumption of the target space, 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 the control unit 11 has a function for calculating the maximum supply power. That is, if the control unit 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 can be supplied by the electric vehicle power supply device 21, for example, based on the power difference described above. Note that the maximum supply power information indicating the maximum supply power may be, for example, 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] The supply power control unit 115 may set all of the power values ​​of the power differences as the maximum supply power.

[0062] Alternatively, if 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, supply power control unit 115 may set the margin power difference, which is obtained by further subtracting the margin power from the power difference, as the maximum supply power.

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

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

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

[0066] Therefore, by having the supply power control unit 115 set the maximum supply power so that it is equal to or smaller than the power difference (i.e., so that it is equal to or smaller than the power difference), the supply power control unit 115 can set the maximum supply power so that it does not 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 and margin power may be arbitrarily set by a user (e.g., a consumer or an installer). More specifically, the user may launch a predetermined application (e.g., a dedicated application or a browser application for accessing a web service) on a terminal such as a smartphone, and the coefficient or margin power input through 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 a predetermined time unit of a day (e.g., 0.5-hour unit, 1-hour unit, etc.) or for a period unit (e.g., a unit preset in the system such as a day of the week, a week, a month, morning, afternoon, and evening). After the user sets the coefficient or margin power, the set coefficient or margin power may be set for the corresponding time period or period (e.g., a day of the week, a week, a month, etc.). Alternatively, two or more settings with different coefficients or margin power may be prepared in advance in the system and selected in response to a user operation (for example, a first setting in which the coefficient is 1 or the margin power is 0 during the nighttime hours and a second setting in which the coefficient is less than 1 or the margin power is greater than 0 during other hours may be selected). 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 the function of calculating the maximum supply power but the electric vehicle power supply device 21 has the 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 have some of the functions of the 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 in the same way as 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, or 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., so that it is equal to or smaller than the power difference), the electric vehicle power supply device 21 can set the maximum supply power so that it does not exceed the allowable power.

[0071] 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 the electric vehicle power supply device 21 desirably complies with 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 referred to as charging power because 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 maximum supply power information, which is 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 about the on-board storage battery (current amount of stored power, temperature, voltage, etc.) and information about the state of the electric vehicle (temperature, operating devices, 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 that instructs the supply power for a predetermined period of time. More specifically, for example, in a configuration in which electric vehicle power supply device 21 supplies power with a predetermined duty ratio, 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 predetermined information in the electric vehicle power supply device 21, reading information from a predetermined memory unit, and storing information in a predetermined 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 that stores the received power, 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, but may also be provided outside the body of the electric vehicle.

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

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

[0078] The storage battery 412 may be any existing storage battery as long as it is capable of storing 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 system.

[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 supply power receiving unit 411 operates by consuming at least a portion of the received power received to 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 operating the electric vehicle side power storage system 41 from the power stored 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 possible supply 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; this includes the case where the control device 11 generates maximum supply power information, and the electric vehicle power supply device 21 receives this information and transmits it 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, devices 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 First Embodiment> Figure 7 is a diagram showing a modification of the first embodiment. Regarding the electric vehicle power supply control system 1 of this modification, only the parts that are different from the electric vehicle power supply control system 1 of the first embodiment will be described. In this modification shown in Figure 7, the breaker EVB (e.g., a ground fault circuit breaker) for the electric vehicle power supply device 21 that was provided in the distribution board DB in the first embodiment is connected to the power meter EM.

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

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

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

[0086] Furthermore, particularly when the sensors are provided on the second wiring W2 and the third wiring W3, unlike in 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 is unable to detect the power consumption of the electric vehicle power supply device 21. Therefore, 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 maximum supply power as the power obtained by subtracting the power consumption of the electric vehicle power supply device 21 from the power indicated by the power difference. 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, 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 itself, and the supplied power control unit 213 can similarly process the information based on both pieces of power consumption information.

[0087] <Embodiment 2> An electric vehicle power supply control system 1 of embodiment 2 is a different embodiment from the electric vehicle power supply control system 1 of embodiment 1. Regarding the electric vehicle power supply control system 1 of embodiment 2, only the parts that are different from the electric vehicle power supply control system 1 of embodiment 1 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 second embodiment differs from the electric vehicle power supply control system 1 of the first embodiment 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 present embodiment 2 differs from the electric vehicle power supply control system 1 of the first embodiment in that the control device 11 includes a generated power measurement unit 116 that measures the generated power of the power generation device 51, instead of the target space power measurement 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 natural energy power generation devices) that generates electricity using at least one of sunlight, wind power, hydroelectric power, geothermal power, solar heat, atmospheric heat 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] One end of the ninth wiring W9 is connected to the power generation device 51 so that electric power can be passed therethrough, and the other end is connected to the power receiving portion 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 power can be passed through, 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 illustrating an example of a distribution board DB according to the second embodiment. The electric vehicle power supply control system 1 of the second embodiment differs 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 take priority over commercial power. This is because, in general, when the power consumption of the target space is equal to or less than the power generated by the target space, there is no need to draw power from commercial power and it is possible to cover the power consumption with only the power generated by the target space, and when the power consumption of the target space is greater than the power generated by the target space, only the difference is drawn 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 power generated by the target space is being output, the connection destination may be switched by a switching device or the like, so that the power generated by the target space is supplied preferentially.

[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 second voltage sensor VS2 may measure the voltage of the ninth wiring W9 or the tenth wiring W10 and generate the 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 device 11 has the function of calculating the maximum supply power. That is, first, if control device 11 has the function of calculating the maximum supply power, supply power control unit 115 generates maximum supply power information indicating the maximum supply power that can be supplied by electric vehicle power supply device 21, for example, based on the target space power generation power described above.

[0100] The supply power control unit 115 compares the allowable power with the power generated in the target space, and if it determines that the power generated in the target space is less than the allowable power value, it may set all of the power values ​​of the power generated in the target space as the maximum supply power.

[0101] Note that the allowable power in the configuration of the present invention is also similar to that in embodiment 1, because the allowable power that can be consumed in the target space is derived from the allowable current (allowable power) of the main breaker MB. Furthermore, even if the target space generated power is equal to or less than the allowable power value, if supplied power control unit 115 sets all of the power values ​​of the target space generated power as the maximum supply power, and if electric vehicle power supply device 21 supplies the maximum supply power to the electric vehicle, then as the target space power consumption increases, the sum of the power supplied by 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 obtained by further subtracting the margin power from the target space generated power, may be set as the maximum supply power.

[0102] Furthermore, as in 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 greater than or equal to 0 and less than or equal to 1. Details are omitted here, as this may be the same as when the power difference in the first embodiment 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 having the supply power control unit 115 set the maximum supply power so that it is equal to or smaller than the power generated in the target space (i.e., so that it is equal to or smaller than the power generated in the target space), the supply power control unit 115 can set the maximum supply power so that it does not exceed the allowable power.

[0104] Furthermore, as in the first embodiment, the coefficient and margin power may be arbitrarily set by a user (e.g., a consumer or an installer). In the second embodiment, instead of or in addition to the configuration of the first embodiment, for example, a user may be able to select a mode in which the coefficient is set relatively higher or the margin power is set relatively lower during daytime hours, including the daytime, than during other time periods. This allows a power generation device that generates a large amount of power during the day, such as a solar power generation device, to use more of the generated power for charging, thereby reducing the amount of power purchased from the power company. Alternatively, a user may be able to select a mode in which the coefficient is set relatively higher or the margin power is set relatively lower during nighttime hours, including the night, than during other time periods. This allows, for example, surplus power during the day to be sold, and allows charging to be mainly performed during the nighttime hours when electricity rates are cheaper.

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

[0106] <Modification of Embodiment 2> Figure 11 is a diagram showing a modification of Embodiment 2. Regarding electric vehicle power supply control system 1 of this modification, only the parts that are different from electric vehicle power supply control system 1 of Embodiment 2 will be described. In this modification shown in Figure 11, the breaker EVB for electric vehicle power supply device 21 that was provided in the distribution board DB in 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 so that power can be passed through, and the other end connected to the power receiving portion of the breaker EVB for the electric vehicle power supply device 21.

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

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

[0110] <Third Embodiment> An electric vehicle power supply control system 1 of a third embodiment can be said to have a configuration that combines 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 are different from the electric vehicle power supply control systems 1 of the first and second embodiments will be described.

[0111] 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, similar to the electric vehicle power supply control system 1 of the first embodiment, and a second current sensor CS2, similar to 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. Furthermore, similar to 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 present embodiment 3 differs from the electric vehicle power supply control systems 1 of the first and second embodiments in that the control device 11 has the target space power measurement unit 113 of the first embodiment, and also 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, and therefore the supply power control unit 115 in the third embodiment is capable of control taking into consideration 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, if 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 can be supplied by the electric vehicle power supply device 21, for example, based on the target space power consumption and target space power generation power described above.

[0115] More specifically, in the configuration of the second embodiment, it is assumed that the power generated in the target space is not necessarily large, and that setting all of the power generated in the target space as the maximum supply power will not have any impact. Even if this is not the case, it is assumed that the sum of the power supplied by the electric vehicle power supply device 21 (in this case, the power generated in the target space) and the power consumed in the target space exceeds the allowable power due to margin power or a 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 power consumed in the target space, with the power generated in the target space, and if the power generated in the target space is smaller than the power difference, set the power generated in the target space as the maximum supply power. Furthermore, if the power generated in the target space is greater than the power difference, the supply power control unit 115 may set the power difference as the maximum supply power. Setting the maximum supply power in this manner enables operation without the sum of the power supplied by the electric vehicle power supply device 21 (in this case, the power generated in the target space) and the power consumed in the target space exceeding the allowable power.

[0116] In the third embodiment, the above-mentioned margin power or coefficient may also be used in setting the maximum supply power.

[0117] Furthermore, similarly to the first and second embodiments, the coefficients and margin power may be arbitrarily set by a user (a user or an installer, etc.).

[0118] Next, in a case where the control device 11 does not have the function of calculating the maximum supply power but the electric vehicle power supply device 21 has the 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, as in the first and second embodiments, the electric vehicle power supply device 21 may have some of the functions of the supply power control unit 115 as a functional unit (supply power control unit 213), and may set the maximum supply power in the same way as the supply power control unit 115, based on the target space power consumption information and 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 Embodiment 3> Figure 14 is a diagram showing a modification of Embodiment 3. Regarding electric vehicle power supply control system 1 of this modification, only the parts that are different from electric vehicle power supply control system 1 of Embodiment 3 will be described. In this modification shown in Figure 14, the breaker EVB for electric vehicle power supply device 21 that was provided in the distribution board DB in 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 so that power can be passed through, and the other end connected to the power receiving portion of the breaker EVB for the electric vehicle power supply device 21.

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

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

[0123] Furthermore, particularly when the first current sensor CS1 and the first voltage sensor CV1 are provided on the second wiring W2 and the third wiring W3 (not shown), unlike in 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 is unable to sense the power consumption of the electric vehicle power supply device 21. Therefore, 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 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, and the information can be processed in the same way in the supply power control unit 213 based on both pieces of power consumption information.

[0124] <Other Modification 1> In the first to third embodiments, examples have been shown in which various information is transmitted and received via wiring or communication cables between 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 between the electric vehicle power supply device 21 and the electric vehicle-side power storage system 41, or between the power meter EM and the control device 11 or the electric vehicle power supply device 21, etc. However, 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 also 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), or a wide area Ethernet.

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

[0127] The network may also 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 pieces of information via the wireless network.

[0128] <Other Modification 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 in the distribution board DB. However, instead of or in addition to these, the power meter EM may have at least some of the functions of the control device 11 and the various sensors. That is, if 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 able to transmit the target space power consumption information to the control device 11; (2) instead of the control device 11 or the various sensors, the power meter EM may be able to transmit 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 or the various sensors, the power meter EM may be able to set the maximum supply power from the target space power consumption information and transmit the maximum supply power information to the electric vehicle power supply device 21. Furthermore, if the power generation device 51 is provided, the power generation information for the target space 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> This does not preclude the inclusion of devices not explicitly stated in the first to third embodiments, and for example, a lightning arrester (SPD) may be provided for electric vehicle power supply device 21. Alternatively, in the second or third embodiment, a functional distribution board (for example, a device that switches the connection of the distribution board to power generation device 51 or a power storage device (not shown) when a power outage occurs) may be provided between DC / AC converter 61 and 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 and improved without departing from the spirit thereof, and it goes without saying that the present invention includes equivalents thereof.

[0131] 1 Electric vehicle power supply control system 11 Control device 111 Source power receiving unit 112 Allowable power storage unit 113 Target space power measurement unit 114 Power difference measurement unit 115 Supply power control unit 116 Generated power measurement unit 119 Information processing unit 21 Electric vehicle power supply device 211 Source power receiving unit 212 Electric vehicle power supply unit 213 Supply power control unit 219 Information processing unit 31 Target space load 31G Target space load group 41 Power storage system 411 Supply power receiving unit 412 Storage battery 413 Instruction information generation unit 419 Information processing unit 51 Power generation device 61 DC / AC converter EV Electric vehicle DB Distribution board MB Main breaker ELB Earth leakage 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 wiring W2 Second wiring W3 Third wiring W4 Fourth wiring W4G Fourth wiring group SP Branch point SW Branch wiring SWG Branch wiring group W5 Fifth wiring W6 Sixth wiring W7 Seventh wiring W8 Eighth wiring W9 Ninth wiring W10 Tenth wiring EL Electric wire +EL +100V electric wire 0EL 0V electric wire -EL -100V electric wire CC1 First communication cable CC2 Second communication cable CC3 Third communication cable CC4 Fourth communication cable

Claims

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, wherein the control device includes: at least one of a target space power measurement unit that measures target space consumption power supplied to a target space load that is a load consuming power in a target space, or a power generation power measurement unit that measures target space power generation power generated by a power generation device included 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 consumption power information indicating the target space consumption power, target space power generation power information indicating the target space power generation power, calculated power information calculated based on at least one of the target space consumption power or the target space power generation power, or maximum supply power information indicating the maximum supply power. An electric vehicle power supply control system comprising the above.

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, wherein the control device includes: a target space power measurement unit that measures target space consumption power supplied to a target space load that is a load consuming power in a target space; and a supply power control unit that transmits to the electric vehicle power supply device at least one of target space consumption power information indicating the target space consumption power, calculated power information calculated based on the target space consumption power, or maximum supply power information indicating the maximum supply power. An electric vehicle power supply control system comprising the above.

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, wherein the control device includes: a power generation power measurement unit that measures target space power generation power generated by a power generation device included 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 generation power information indicating the target space power generation power, calculated power information calculated based on the target space power generation power, or maximum supply power information indicating the maximum supply power. An electric vehicle power supply control system comprising the above.

4. An electric vehicle power supply control system including 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, wherein the control device includes: a target space power measurement unit that measures the target space consumption power supplied to a target space load, which is a load that consumes power in the target space; a generated power measurement unit that measures the target space generated power generated by a power generation device included in the target space; and a supply power control unit that transmits at least any one of target space consumption power information indicating the target space consumption power, target space generated power information indicating the target space generated power, calculated power information calculated based on the target space consumption power and the target space generated power, or maximum supply power information indicating the maximum supply power, to the electric vehicle power supply device. An electric vehicle power supply control system.

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 consumption power information, the target space generated power information, or the calculated power information, and transmits the maximum supply power information to the electric vehicle. The electric vehicle power supply control system according to any one of claims 1 to 4.

6. The electric vehicle power supply device includes: a maximum supply power information transmission unit that transmits the received maximum supply power information to the electric vehicle. The electric vehicle power supply control system according to any one of claims 1 to 4.

7. Further, a breaker for the electric vehicle power supply device is provided for a wiring that supplies power to the electric vehicle power supply device. The electric vehicle power supply control system according to any one of claims 1 to 4.

8. The breaker for the electric vehicle power supply device is provided in the distribution board of the target space. The electric vehicle power supply control system according to claim 7.

9. The breaker for the electric vehicle power supply device is provided in the power meter of the target space. The electric vehicle power supply control system according to claim 7.

10. The control device is a power meter for the target space. The electric vehicle power supply control system according to any one of claims 1 to 4.

11. A program for controlling a control device that transmits information for setting the maximum supply power in a power supply device for an electric vehicle that supplies power to the electric vehicle, the program causing the control device to perform at least one of: measuring the target space consumption power supplied to a target space load that is a load consuming power in the target space, or measuring the target space generated power generated by a power generation device provided in the target space; and transmitting at least one of: target space consumption power information indicating the target space consumption power, target space generated power information indicating the target space generated power, calculated power information calculated based on at least one of the target space consumption power or the target space generated power, or maximum supply power information indicating the maximum supply power, to the power supply device for the electric vehicle.

12. A method of control by a control device that transmits information for setting the maximum supply power in a power supply device for an electric vehicle that supplies power to the electric vehicle, the method including: measuring, by the control device, at least one of: the target space consumption power supplied to a target space load that is a load consuming power in the target space, or the target space generated power generated by a power generation device provided in the target space; and transmitting at least one of: target space consumption power information indicating the target space consumption power, target space generated power information indicating the target space generated power, calculated power information calculated based on at least one of the target space consumption power or the target space generated power, or maximum supply power information indicating the maximum supply power, to the power supply device for the electric vehicle.

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