Grid connection support system for mobile battery

Abstract

To provide a grid interconnection support system of a mobile on-board battery capable of charging and discharging power by interconnecting the mobile on-board battery to the grid via a charging and discharging cable to an AC connection unit of a moving destination.SOLUTION: A vehicle 3 includes: a bidirectional inverter 7; a control device 8 that controls charging / discharging of the bidirectional inverter and adjusts a relay setting value of a protection relay; and an on-vehicle gateway 9. An electronic tag 23 is provided in which connection point information including lead-in source identification information is recorded in an AC outlet 2 at a moving destination or in the vicinity thereof. The on-vehicle gateway 9 transmits the connection point information read from an electronic tag by a reading device (a reader 13) to a management server (a management server 32 for a provider), and the management server notifies the on-vehicle gateway 9 of a relay setting value extracted from a setting value storage database 33 based on the connection point information. The control device 8 replaces the relay setting value of the protection relay with the relay setting value the on-vehicle gateway has been notified of.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a grid connection support system for batteries mounted on mobile bodies, such as EVs and PHEVs, which connects the batteries mounted on such mobile bodies to a grid at the destination, allowing the battery power to be used for purposes other than the running of the mobile body. [Background technology]

[0002] Traditionally, standardization has been promoted with a view to charging vehicle batteries with commercial power, but recently, the concept of V2X (Vehicle to X), which uses the power of vehicle batteries for purposes other than driving the vehicle, has been attracting attention. Therefore, in order to realize V2X, as shown in Patent Document 1 and Non-Patent Document 1, if a vehicle is equipped with a bidirectional inverter, a protective relay, and a charge / discharge control device, and it is possible to charge and discharge alternating current (AC power) between the on-board battery and the grid, it will be possible to charge and discharge the on-board battery using a regular AC outlet at the destination regardless of location, and there will be no need to install large-scale equipment at the consumer's home. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-141926 [Non-patent literature]

[0004] [Non-Patent Document 1] Tatsuya Izumi and five others, "V2X Compatible Bidirectional Charging Unit," SEI Technical Review, July 2014, No. 185, pp. 34-37 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when connecting a vehicle's onboard battery to the grid at its destination (including connecting via consumer equipment), for example, as in V2H (Vehicle to Home) or V2G (Vehicle to Grid) for the purposes of securing power for consumer equipment, shifting peaks in power supply and demand, or stabilizing renewable energy, it is necessary to change the setting value of the protective relay to a setting value that takes into account the voltage and other conditions of the grid to which it is connected, and obtain connection certification from the electricity transmission and distribution company before connecting to the grid. Therefore, when connecting the battery of a vehicle equipped with a bidirectional charging unit to a grid at any destination, it is necessary to connect the battery to the grid appropriately using a simple configuration that does not impose a burden on consumers.

[0006] The present invention has been made in consideration of the above circumstances, and its main objective is to provide a grid connection support system for batteries mounted on mobile objects, which does not require major equipment modifications to the facilities at consumer homes, allows batteries mounted on mobile objects such as EVs to be easily connected to the grid at any destination, and does not require much cost or time to build such infrastructure. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a grid-connection support system for a battery mounted on a mobile body, which is capable of charging and discharging power between an AC connection unit provided at a destination of travel and a battery mounted on the mobile body (e.g., a vehicle) via a charge / discharge cable, and includes: The mobile body is equipped with a bidirectional inverter connected between the mobile body mounted battery and a charge / discharge port, a control device that controls the charge / discharge of the bidirectional inverter and is capable of adjusting a relay setting value of a protective relay, and a mobile body gateway for communication and data exchange inside and outside the mobile body, a connection point information recording medium (e.g., an electronic tag or a code image) is provided at or near the AC connection unit, and connection point information including lead-in source identification information (e.g., a lead-in pole number) that identifies a power distribution line system from which electricity is drawn to the AC connection unit is recorded; a management server having a setting value storage unit (setting value storage database) in which relay setting values ​​corresponding to each of the attraction source identification information are stored; a reading device (e.g., a reader or a mobile terminal) capable of reading the access point information recorded on the access point information recording medium and communicating with the mobile gateway; the mobile gateway comprises a connection point information transmitting means for transmitting the connection point information read by the reading device to the management server upon receiving the connection point information; the management server comprises a relay setting value notification means for extracting a relay setting value corresponding to the attraction source identification information of the connection point information by referring to the setting value storage unit based on the connection point information transmitted from the mobile gateway, and notifying the mobile gateway of the extracted relay setting value; the control device includes a setting value replacing means for replacing a relay setting value of the protection relay with a relay setting value notified to the mobile gateway; It is characterized by having:

[0008] Here, the AC connection part may be an AC outlet provided at the destination where the charging / discharging cable is plugged in, or a cable connection part at the destination where the charging / discharging cable is pre-connected. In other words, the charging / discharging cable may be plugged into the AC connection part at the destination to connect, or may be pre-connected to the AC connection part at the destination. The connection point information recording medium may also be an electronic tag (e.g., an IC tag) embedded in the AC connection part or installed near the AC connection part, or a code image (a one-dimensional code image such as a barcode, a two-dimensional code image such as a QR code, etc.) displayed on the surface of the AC connection part or near it. If the electronic tag or code image is moved to another location, it may be connected to the grid based on erroneous information, so it is preferable to install it directly in the AC connection. In particular, it is preferable to install the electronic tag inside the AC connection, and even if it is installed inside the AC connection, it is more preferable to seal the screw part etc. so that it cannot be taken out.

[0009] Therefore, when a mobile object connects to a grid with an AC connection port of a consumer at a destination, it is necessary to change the relay setting of the protective relay to a setting taking into account the state of the grid, such as the voltage, of the destination grid. According to the grid interconnection support system described above, a connection point information recording medium (e.g., an electronic tag or a code image) is provided at or near the AC connection port of the destination, on which connection point information including lead-in source identification information for identifying the distribution line system from which electricity is drawn into the AC connection port is recorded. When the connection point information recorded on the connection point information recording medium is read by a reading device, the read connection point information is transmitted from the mobile gateway to a management server managed by the electricity transmission and distribution company, etc. The management server then refers to the setting value storage unit and, based on the received connection point information, extracts the relay setting corresponding to the lead-in source identification information (the relay setting corresponding to the AC connection port to be connected) and notifies the mobile gateway. Then, when the relay setting value is notified to the mobile gateway, the control device replaces the relay setting value of the protection relay with the relay setting value notified to the mobile gateway, thereby ensuring proper and instantaneous grid connection.

[0010] Here, the reading device may be a reader that is integral with an AC plug that connects to the AC connection part of an AC charging / discharging cable that connects the charging / discharging port of the mobile body to the AC connection part, and the connection point information read by this reader may be transmitted to the mobile body gateway wirelessly or via a wired connection. With this configuration, simply connecting the charge / discharge cable to the AC connection point at the destination allows the reader to read the connection point information. Therefore, once the operation of connecting the charge / discharge cable to the AC connection point is completed, it becomes possible to establish a state in which appropriate grid interconnection has been completed, i.e., a connection state in which the battery mounted on the vehicle and the consumer at the destination can be charged and discharged.

[0011] Alternatively, a portable terminal may be used as the reading device, and the connection point information read by this portable terminal may be transmitted wirelessly to the mobile gateway. In this configuration, it is possible to use a normal AC cable as the charging / discharging cable, and by simply sending the connection point information read using the mobile terminal to the mobile gateway, it is possible to change the relay setting value of the protective relay to the relay setting value corresponding to the AC connection part to be connected.

[0012] In addition, a grid connection support system for a mobile vehicle-mounted battery according to another example includes: A grid connection support system for a mobile body mounted battery that enables charging and discharging of power between an AC connection unit provided at a destination and a mobile body mounted battery mounted on the mobile body (e.g., a vehicle) via a charge / discharge cable, The mobile body is equipped with a bidirectional inverter connected between the mobile body mounted battery and a charge / discharge port, a control device that controls the charge / discharge of the bidirectional inverter and is capable of adjusting a relay setting value of a protective relay, and a mobile body gateway for communication and data exchange inside and outside the mobile body, a connection point information recording medium (e.g., an electronic tag or a code image) is provided at or near the AC connection unit, and connection point information including lead-in source identification information (e.g., a lead-in pole number) that identifies a power distribution line system from which electricity is drawn to the AC connection unit is recorded; a management server including a setting value storage unit (setting value storage database) that stores in advance relay setting values ​​corresponding to the respective attraction source identification information; a reading device capable of reading the connection point information recorded on the connection point information recording medium, the reading device is a portable terminal capable of reading the access point information recorded on the access point information recording medium and capable of communicating with the mobile gateway and the management server, The portable terminal includes a connection point information transmitting means for transmitting the connection point information read from the connection point information recording medium to the management server. the management server comprises a relay setting value notification means for extracting a relay setting value corresponding to the attraction source identification information of the connection point information by referring to the setting value storage unit based on the connection point information transmitted from the mobile terminal, and notifying the mobile terminal of the extracted relay setting value; the mobile terminal further comprises a relay setting value transmitting means for transmitting the relay setting value notified from the management server to the mobile gateway; the control device includes a setting value replacement means for replacing a relay setting value of the protection relay with the relay setting value transmitted to the mobile gateway; It may have the following structure.

[0013] In this configuration, it is possible to use a normal AC cable as the charging / discharging cable, and it is also possible to obtain and change the relay setting value of the protective relay corresponding to the AC connection part to be connected using only the mobile terminal network.

[0014] In addition, when discharging power between the battery mounted on the mobile body and the AC connection unit after the relay setting value of the protective relay has been changed, the management server may confirm the change in the relay setting value and then notify the mobile gateway of permission to connect the battery mounted on the mobile body and the AC connection unit, and after receiving notification of permission to connect from the mobile gateway, the control device may discharge power between the battery mounted on the mobile body and the AC connection unit based on a request from the management server. [Effects of the Invention]

[0015] As described above, according to the system for supporting grid connection of a mobile body mounted battery of the present invention, when charging and discharging power between the mobile body mounted battery (vehicle mounted battery) mounted on the mobile body (vehicle) via an AC connection unit provided at the destination of travel, the mobile body (vehicle) is provided with a bidirectional inverter, a control device that controls charging and discharging of the bidirectional inverter and is also capable of adjusting the relay setting value of the protective relay, and a mobile body gateway (vehicle mounted gateway), and a connection point in which connection point information including lead-in source identification information that identifies the lead-in source distribution line system is recorded is provided at or near the AC connection unit. A connection point information recording medium (electronic tag, code image, etc.) is provided, and the connection point information recorded on the connection point information recording medium is read by a reading device. Based on the connection point information, the setting value storage unit of the management server is referenced to obtain a relay setting value corresponding to the connection destination, and the control device replaces the relay setting value of the protective relay with the obtained relay setting value. Therefore, when connecting a mobile vehicle's onboard battery to the grid, there is no need to install or modify large-scale equipment in the customer's home, and it becomes possible to easily and instantly connect a mobile vehicle's onboard battery to the grid at any destination. Furthermore, the infrastructure required at the destination of the mobile object can be replaced by an AC connection unit with a built-in connection point information recording medium, or by installing a separate connection point information recording medium, eliminating the need for significant costs and time to set up the infrastructure. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a diagram showing a first embodiment of a grid connection support system for a battery mounted on a mobile object according to the present invention. [Figure 2] FIG. 2 is a diagram showing a second embodiment of the grid connection support system for a battery mounted on a moving object according to the present invention. [Figure 3] FIG. 3 is a flowchart illustrating an example of the operation of the system for supporting grid connection of a battery mounted on a vehicle according to the present invention shown in FIGS. [Figure 4] FIG. 4 is a diagram showing a third embodiment of the grid connection support system for a battery mounted on a mobile object according to the present invention. [Figure 5] FIG. 5 is a flowchart illustrating an example of the operation of the system for supporting grid interconnection of a battery mounted on a vehicle according to the present invention shown in FIG. [Figure 6] FIG. 6 is a diagram showing a fourth embodiment of the grid connection support system for a battery mounted on a moving object according to the present invention. [Figure 7] FIG. 7 is a diagram showing a fifth embodiment of a grid-connection support system for a battery mounted on a moving object according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0018] A first embodiment of a grid-connection support system for a battery mounted on a mobile object according to the present invention is shown in Fig. 1. In the following, a case where a vehicle 3 is used as the mobile object will be described. This grid connection support system 1 for batteries mounted on a mobile object is a system for automatically adjusting relay setting values ​​when an in-vehicle battery (battery mounted on a mobile object) 4 mounted on a vehicle (mobile object) 3 is connected to the grid via an AC outlet 2 installed at a consumer's home at the destination.

[0019] The vehicle 3 is assumed to be an EV such as a BEV, HEV, PHEV, or FCEV equipped with an on-board battery 4 used for driving the vehicle, and in addition to the on-board battery 4, the vehicle 3 is equipped with a bidirectional inverter 7 connected between the on-board battery 4 and a charge / discharge port 6 that connects a charge / discharge cable 5, a control device 8 that controls charging and discharging by the bidirectional inverter 7 and can adjust the relay setting value of the protective relay, and an on-board gateway 9 that relays between different domains and protocols for communication and data exchange inside and outside the vehicle.

[0020] Here, the protective relay is incorporated inside the control device 8 (shown as protective relay management unit 8a in the figure), and the relay setting is the limit value (threshold value) at which the protective relay operates. If the set relay setting is exceeded, the protective relay turns off a circuit breaker 10, such as an electromagnetic contactor, located between the charge / discharge port 6 and the bidirectional inverter 7. Examples of protective relays include an overcurrent relay (OCR), an overvoltage relay (OVR), an undervoltage relay (UVR), an underpower relay (UPR), a directional short circuit relay (DSR), an overfrequency relay (OFR), an underfrequency relay (UFR), a reverse power relay (RPR), an islanding detection device, the output voltage of an automatic voltage regulator, a set power factor, etc., and the setting values ​​are set as upper and lower limits of the overvoltage, overcurrent, frequency, etc. of these protective relays.

[0021] When charging the vehicle battery 4 in response to a command from the control device 8, the bidirectional inverter 7 operates as a converter that converts AC power supplied from outside via the charge / discharge cable 5 into DC power and supplies it to the vehicle battery 4, and when discharging power stored in the vehicle battery 4, it operates as an inverter that converts DC power stored in the vehicle battery 4 in response to a command from the control device 8 into AC power and supplies it to the external AC system via the charge / discharge cable 5.

[0022] In this example, the AC outlet 2 on the consumer side is integrally formed with a plug insertion section 22 provided with a socket 21 to which an AC plug 11 provided at the tip of a charging / discharging cable can be connected, and a tag attachment section 24 located below this plug insertion section 22 and to which an electronic tag 23 such as an IC tag is attached. The electronic tag 23 may be attached so that it is exposed on the front end surface of the AC outlet 2, but in this example it is embedded in the AC outlet 2 to protect the electronic tag 23 and prevent it from being easily moved. Furthermore, the electronic tag 23 may be placed near the AC outlet as a separate unit from the AC outlet 2, but if the installation position is not determined, this may cause problems with reading by a reading device or require a new location to be secured for the electronic tag. Therefore, it is advisable to integrate the electronic tag with the AC outlet to facilitate access by the reading device and to keep the area around the outlet neat and tidy.

[0023] The charging / discharging cable 5, which is connected to the charging / discharging port 6 of the vehicle, is provided with the AC plug 11 at the end connected to the AC outlet 2, and in this example, the AC plug 11 is formed in the shape of a vertically long rectangular parallelepiped. The upper part of the end face of the AC plug facing the AC outlet 2 is provided with plug pins 12 that can be inserted into socket 21, and the lower part of the end face facing the AC outlet 2 is provided with reader 13 that is close to electronic tag 23 when AC plug 11 is connected to the AC outlet 2 and can read connection point information recorded on electronic tag 23.

[0024] In this example, the reader 13 is integrated into the AC plug 11 with its tip end exposed on the end surface facing the AC outlet 2. When the reader 13 is brought close to the electronic tag 23, it reads the connection point information recorded on the electronic tag 23, and the connection point information read by the reader 13 is transmitted to the vehicle gateway 9 wirelessly or via a wired connection (FIG. 1 shows an example in which the connection point information is transmitted via a wired connection). The lead wire 5a connected to the reader 13 is led along the power cable 5b to the charge / discharge port 6 and is electrically connected to the vehicle gateway 9 via a vehicle-side communication cable connected to the charge / discharge port 6.

[0025] The in-vehicle gateway 9 is connected to the automobile manufacturer's management server 31 via a network outside the vehicle, and this manufacturer's management server 31 is connected to the electricity transmission and distribution company's business management server 32 via the network, so that the in-vehicle gateway 9 can send and receive data to and from the business management server 32 via the manufacturer's management server 31.

[0026] Here, the operator's management server 32 has a setting value storage database (setting value storage unit) 33 in which relay setting values ​​corresponding to each of the source identification information (e.g., the source pole number) are stored, and when connection point information is received, it is possible to extract the relay setting value for connecting to the source distribution line system based on the source identification information (e.g., the source pole number) in the information.

[0027] In the above configuration, an example has been shown in which a reader 13 is provided on the AC plug 11 connected to the AC outlet 2 of the charging / discharging cable 5, and this reader 13 reads the connection point information recorded in the electronic tag 23. However, as shown in the second embodiment of Figure 2, it is also possible to use a mobile terminal 30 such as a smartphone instead of the reader 13, and use the NFC function of this mobile terminal 30 to bring the mobile terminal 30 close to the electronic tag 23 so that the connection point information recorded in the electronic tag 23 can be read by the mobile terminal 30, and the connection point information read by the mobile terminal 30 can be transmitted to the in-vehicle gateway 9 using the communication function of the mobile terminal 30. In the second embodiment shown in FIG. 2, the hardware configuration is the same as that of the first embodiment shown in FIG. 1, except that a mobile terminal 30 is used instead of the reader 13, so the same parts are given the same symbols and their explanations are omitted.

[0028] In the above example, connection point information is recorded on the electronic tag 23, but a code image such as a barcode or QR code (registered trademark) that records the connection point information may be displayed on or near the AC outlet 2, and the image may be read using the camera function of the mobile terminal 30.

[0029] Next, an example of the operation of interconnecting the in-vehicle battery 4 with the grid in the above configuration will be described with reference to the flowchart shown in FIG. First, the AC plug 11 of the charge / discharge cable 5 is inserted into the socket 21 of the destination AC outlet 2, and the reader 13 (first embodiment) provided on the AC outlet 2 or the mobile terminal 30 (second embodiment) is used to read the connection point information recorded in the electronic tag 23 provided on or near the AC outlet 2 of the consumer or the code image (S01). That is, at least the lead-in source identification information (e.g., lead-in pole number) that identifies the lead-in source distribution line system for drawing electricity into the destination AC outlet 2 to which the on-board battery 4 is to be connected is read. Then, the read connection point information is transmitted to the vehicle gateway 9 via wired or wireless communication (S02).

[0030] When the vehicle gateway 9 receives the connection point information, it transmits this connection point information to the automobile manufacturer's management server 31 (S03), and the manufacturer's management server 31 transfers the received connection point information to the electricity transmission and distribution company's management server 32 (S04). When the business operator's management server 32 receives the connection point information (S05), it refers to the setting value storage database 33, extracts the relay setting value corresponding to the pull-in source identification information of the connection point information from the received connection point information, and notifies the vehicle gateway 9 of this relay setting value via the manufacturer's management server 31 (S06, S07). Then, the vehicle gateway 9 writes the received relay setting value in response to this (S08).

[0031] Thereafter, the in-vehicle gateway 9 requests the control device 8 to change the setting of the relay setting value (S09). In response to this, the control device 8 changes the relay setting value of the protection relay to the relay setting value received by the in-vehicle gateway 9 (S10). When the controller 8 has completed changing the settings of the relay settings, the controller 8 reports the completion of changing the settings of the relay settings to the vehicle gateway 9 (S11). In response to this, the in-vehicle gateway 9 transfers a report of completion of the setting change of the relay setting value to the manufacturer management server 31 (S12), and in response, the manufacturer management server 31 transfers a report of completion of the setting change of the relay setting value to the operator management server 32 (S13).

[0032] Thereafter, upon receiving the setting change completion report, the business management server 32 checks the setting change of the relay setting value (S14), and if there are no problems, notifies permission to connect the in-vehicle battery 4 to the AC outlet 2 (S15). When the manufacturer management server 31 receives a connection permission notification from the business management server 32, it forwards this to the vehicle gateway 9 (S16), and when the vehicle gateway receives the connection permission notification, it forwards it to the control device (S17). When the control device 8 receives the connection permission notification, it puts the vehicle battery 4 into a state where discharge is possible between the vehicle battery 4 and the AC outlet 2 (S18), and then, based on a request from the power distribution company (based on an instruction from the company management server 32), issues a discharge instruction to the bidirectional inverter 7 (S19).

[0033] Therefore, in the above configuration, the connection point information recorded on the electronic tag 23 or code image attached to the AC outlet 2 is read by a reading device such as the reader 13 or a mobile terminal 30, and this information is sent to the vehicle gateway 9, whereby the operator's management server 32 notifies the relay setting value corresponding to the AC outlet 2 to be connected, and the control device 8 replaces the relay setting value of the protective relay with the relay setting value notified to the vehicle gateway 9, making it possible to properly and instantly connect the vehicle battery 4 to the grid without using large-scale equipment.

[0034] Although the above example shows the case where the in-vehicle battery 4 is discharged, the same process can be carried out when the in-vehicle battery 4 is charged. Switching between charging and discharging may also be performed based on the needs of the power transmission and distribution company. For example, charging may be commanded when there is a total surplus of renewable energy electricity (electricity derived from renewable energy) in the power grid or when the voltage in the power distribution system is rising (when solar power generation increases and there is a local surplus of renewable energy), and discharging may be commanded when there is a shortage of electricity in the power grid, such as during the evening lighting hours. Also, when the voltage in the power distribution system drops due to EVs charging all at once, charging may be suppressed or the charging time may be shifted.

[0035] FIG. 4 shows a third embodiment of the grid connection support system for a battery mounted on a mobile object according to the present invention. In the examples of Figures 1 and 2, connection point information is sent to the vehicle gateway 9, and the relay setting value is obtained from this vehicle gateway 9, but in the example shown in Figure 4, direct communication occurs between the mobile terminal 30 that reads the connection point information and the operator's management server 32, the mobile terminal 30 obtains the relay setting value from the operator's management server 32, and the relay setting value obtained by the mobile terminal 30 is notified to the vehicle gateway 9. The hardware configuration is the same as that shown in FIG. 2, so the same parts are denoted by the same reference numerals and the description thereof will be omitted.

[0036] A specific example of the operation process for interconnecting the in-vehicle battery 4 with the grid in this third embodiment will be described with reference to the flowchart shown in FIG. First, in order to connect the on-board battery 4 to the grid via the AC outlet 2 at the destination of the vehicle, the NFC function of the mobile terminal 30 is used to bring the mobile terminal 30 close to the AC outlet 2 (electronic tag 23) to read the connection point information recorded on the electronic tag 23 with the mobile terminal 30, or the camera function of the mobile terminal 30 is used to recognize a code image provided on the AC outlet 2 (or in its vicinity) to read the connection point information recorded on the code image with the mobile terminal 30 (S21).Then, the mobile terminal 30 uses its own communication function to wirelessly transmit the connection point information read by the mobile terminal 30 to the business operator management server 32 using the mobile terminal network (S22).

[0037] When the operator management server 32 receives the connection point information transmitted from the mobile terminal 30 (S23), it refers to the setting value storage database 33, extracts the relay setting value corresponding to the pull-in source identification information of the received connection point information, and notifies the mobile terminal 30 of this relay setting value (S24). When the mobile terminal 30 receives the relay setting value (S25), it transfers it to the vehicle gateway 9 (S26), and the vehicle gateway 9 writes the received relay setting value (S27).

[0038] 3 is then performed, and the in-vehicle gateway 9 requests the control device 8 to change the setting of the relay setting value (S09). In response to this, the control device 8 changes the relay setting value of the protection relay to the relay setting value received by the in-vehicle gateway 9 (S10). When the controller 8 has completed changing the relay setting values, the controller 8 reports the completion of changing the setting values ​​to the vehicle gateway 9 (S11). In response to this, the in-vehicle gateway 9 transfers a report of completion of the setting change of the relay setting value to the manufacturer management server 31 (S12), and in response, the manufacturer management server 31 transfers a report of completion of the setting change of the relay setting value to the operator management server 32 (S13).

[0039] Thereafter, upon receiving the setting change completion report, the business management server 32 checks the setting change of the relay setting value (S14), and if there are no problems, notifies permission to connect the in-vehicle battery 4 to the AC outlet 2 (S15). When the manufacturer management server 31 receives a connection permission notification from the business management server 32, it forwards this to the vehicle gateway 9 (S16), and when the vehicle gateway receives the connection permission notification, it forwards it to the control device (S17). When the control device 8 receives the connection permission notification, it puts the vehicle battery 4 and the AC outlet 2 into a state where discharge is possible (S18), and then issues a discharge instruction to the bidirectional inverter 7 based on a request from the power distribution company (S19).

[0040] Therefore, in the above-described configuration, the connection point information recorded on the electronic tag or code image attached to the AC outlet 2 is read by the mobile terminal 30 and sent directly to the business operator's management server 32, thereby making it possible for the mobile terminal 30 to obtain the relay setting value corresponding to the AC outlet 2 to which the connection is to be made, and by sending this information to the vehicle gateway 9, the control device 8 replaces the relay setting value of the protective relay with the relay setting value notified to the mobile terminal 30. This makes it possible to interconnect the vehicle battery 4 to the grid appropriately and quickly without using large-scale equipment.

[0041] In the above example, the case where the on-board battery 4 is connected to the grid via the AC outlet 2 of the consumer at the destination, and then the DC power stored in the on-board battery 4 is converted to AC power via the bidirectional inverter 7 and supplied (discharged) to the consumer has been described. However, even in the case where the on-board battery 4 is connected to the grid via the AC outlet 2 of the consumer at the destination, and DC power is supplied from the AC outlet 2 of the consumer to the on-board battery 4 via the bidirectional inverter 7 to charge the on-board battery 4, the relay setting value of the protective relay can be rewritten by the control device in a similar manner.

[0042] In the above example, the manufacturer's management server 31 is used to connect the vehicle gateway 9 and the business operator's management server 32, but if the only purpose is to change the relay setting value in order to interconnect the vehicle battery 4 to the grid, it is not necessary to go through the manufacturer's management server 31. The manufacturer's management server 31 may be replaced by an aggregator, and further, a management server of the aggregator may be interposed between the manufacturer's management server 31 and the business operator's management server 32.

[0043] Furthermore, in the above example, the vehicle 3 is used as the moving body, but the present invention is not limited to this, and a similar configuration can be adopted for any moving body equipped with a battery. In the above example, the EV is connected to an AC outlet 2 provided by the consumer, but the consumer may also be provided with a similar outlet to the EV instead of an AC outlet. Therefore, the AC outlet 2 described above may be any AC outlet used for charging and discharging AC power.

[0044] Furthermore, in the above example, the AC outlet 21 of the AC power outlet 2 or the like is used as the AC connection part, and power can be charged and discharged between the AC power outlet 2 and the vehicle battery 4 mounted on the vehicle via a charge / discharge cable 5 detachably connected to this AC connection part. However, as shown in Figures 6 and 7, a charge / discharge cable 5 may be previously attached to an AC connection part such as an outdoor power outlet pole 25 installed at the destination, and power can be charged and discharged between the AC power outlet 2 and the vehicle battery 4 via this charge / discharge cable 5.

[0045] 6 shows a fourth embodiment of the grid-connection support system for a vehicle-mounted battery according to the present invention. This embodiment includes a control unit 26 that, when it recognizes that a charge / discharge cable 5 has been connected to a vehicle's charge / discharge port 6, reads and transmits connection point information including lead-in source identification information for identifying the power distribution line system from which electricity is drawn in at the AC connection port from a connection point information recording medium 23′ attached to an AC connection port such as an outdoor power outlet support pole 25, and may transmit the connection point information transmitted from the control unit 26 to the charge / discharge port 6 via a control line (not shown) provided in the charge / discharge cable 5, and further to the vehicle gateway 9 via a vehicle-side communication cable connected to the charge / discharge port 6. Therefore, in this example, there is no need to hold up a reader or mobile terminal to read the connection point information, and therefore the connection point information recording medium does not need to be the electronic tag 23, but may be read from another recording medium (memory such as ROM or RAM) by the control unit 26. In the example shown in Fig. 6, the control unit 26 corresponds to a reading device capable of communicating with the vehicle gateway 9. In addition, since the other configurations in Fig. 6 are the same as those in Fig. 1, the same reference numerals are used for the same parts and their explanations are omitted.

[0046] 7 shows a fifth embodiment of the grid connection support system for a mobile vehicle-mounted battery according to the present invention. In this embodiment, the charge / discharge cable 5 shown in FIGS. 2 and 4 is provided integrally with an AC connection part such as an outdoor power outlet support pole 25. Since the other components are the same as those shown in FIGS. 2 and 4, the same reference numerals are used for the same parts and their explanations are omitted. In such a configuration, the same effects as those in FIGS. 3 and 5 can be achieved by performing the same processes.

[0047] In the configurations of Figures 6 and 7, it is necessary to install a power outlet pole 25 with a charging / discharging cable 5 at the destination, but since this simply involves installing a power outlet pole 25 with a charging / discharging cable 5 in place of an AC outlet or together with an AC outlet, no major changes are required to the equipment at the consumer's home. [Explanation of symbols]

[0048] 1. Grid connection support system for mobile battery 2 AC outlets 3 vehicles 4. Car battery 5. Charging and discharging cables 6 Charge / discharge port 7 Bidirectional inverter 8 Control Device 9. In-vehicle gateway 11 AC plug 13 Leader 23 Electronic tags 26 Control Unit 30 Mobile Devices

Claims

1. A grid connection support system for a mobile vehicle-mounted battery that enables charging and discharging of power between an AC connection unit provided at a destination and a mobile vehicle-mounted battery mounted on the mobile vehicle via a charge / discharge cable, The mobile body is equipped with a bidirectional inverter connected between the mobile body mounted battery and a charge / discharge port, a control device that controls the charge / discharge of the bidirectional inverter and is capable of adjusting a relay setting value of a protective relay, and a mobile body gateway for communication and data exchange inside and outside the mobile body, a connection point information recording medium is provided at or near the AC connection unit, on which connection point information including lead-in source identification information for identifying a power distribution line system from which electricity is drawn into the AC connection unit is recorded; a management server having a setting value storage unit in which relay setting values ​​corresponding to the respective attraction source identification information are stored; a reader capable of reading the access point information recorded on the access point information recording medium and communicating with the mobile gateway; the mobile gateway comprises a connection point information transmitting means for transmitting the connection point information read by the reading device to the management server upon receiving the connection point information; the management server comprises a relay setting value notification means for extracting a relay setting value corresponding to the attraction source identification information of the connection point information by referring to the setting value storage unit based on the connection point information transmitted from the mobile gateway, and notifying the mobile gateway of the extracted relay setting value; the control device includes a setting value replacing means for replacing a relay setting value of the protection relay with a relay setting value notified to the mobile gateway; A grid connection support system for a battery mounted on a mobile object, comprising:

2. 2. The grid connection support system for a battery mounted on a mobile body according to claim 1, wherein the reading device is a reader integrally provided on an AC plug connected to the AC connection portion of a charge / discharge cable that connects the charge / discharge port of the mobile body to the AC connection portion, and the connection point information read by the reader is transmitted to the mobile body gateway wirelessly or by wire.

3. 2. The grid connection support system for a battery mounted on a mobile body according to claim 1, wherein the reading device is a mobile terminal, and the connection point information read by the mobile terminal is transmitted wirelessly to the mobile gateway.

4. A grid connection support system for a mobile vehicle-mounted battery that enables charging and discharging of power between an AC connection unit provided at a destination and a mobile vehicle-mounted battery mounted on the mobile vehicle via a charge / discharge cable, The mobile body is equipped with a bidirectional inverter connected between the mobile body mounted battery and a charge / discharge port, a control device that controls the charge / discharge of the bidirectional inverter and is capable of adjusting a relay setting value of a protective relay, and a mobile body gateway for communication and data exchange inside and outside the mobile body, a connection point information recording medium is provided at or near the AC connection unit, on which connection point information including lead-in source identification information for identifying a power distribution line system from which electricity is drawn to the AC connection unit is recorded; a management server including a setting value storage unit that stores in advance relay setting values ​​corresponding to the respective attraction source identification information; a reading device capable of reading the connection point information recorded on the connection point information recording medium, the reading device is a portable terminal capable of reading the access point information recorded on the access point information recording medium and capable of communicating with the mobile gateway and the management server, The portable terminal includes a connection point information transmitting means for transmitting the connection point information read from the connection point information recording medium to the management server. the management server comprises a relay setting value notification means for extracting a relay setting value corresponding to the attraction source identification information of the connection point information by referring to the setting value storage unit based on the connection point information transmitted from the mobile terminal, and notifying the mobile terminal of the extracted relay setting value; the mobile terminal further comprises a relay setting value transmitting means for transmitting the relay setting value notified from the management server to the mobile gateway; the control device includes a setting value replacement means for replacing a relay setting value of the protection relay with the relay setting value transmitted to the mobile gateway; A grid connection support system for a battery mounted on a mobile object, comprising:

5. 5. The grid connection support system for a battery mounted on a mobile body according to claim 1, wherein the connection point information recording medium is an electronic tag embedded in the AC connection part or installed in the vicinity of the AC connection part, or a code image displayed on the surface of the AC connection part or in the vicinity thereof.

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