Power recovery system and terminal device

Abstract

To collect power generated by a photovoltaic power generation facility on a power non-use day when an institution including the photovoltaic power generation facility does not use power generated by sunlight.SOLUTION: A power collection system 1000 collects power on a power non-use day in an institution including a photovoltaic power generation facility. The power non-use day is the day when the institution does not use power by the photovoltaic power generation. The power collection system 1000 includes a power-non-use day acquisition section 612a and a collection command transmission section 612c. The power non-use day acquisition section 612a acquires information related to the power non-use day. The collection command transmission section 612c transmits a collection command. The collection command is the command to allow a vehicle 800 mounting a storage battery 805 to drive to the institution on the power non-use day and to collect the power by storing the power generated by the photovoltaic power generation facility in the storage battery 805.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a power recovery system and a terminal device. [Background technology]

[0002] Conventionally, a technology has been known in which excess electricity from a solar power generation facility is charged into a storage battery mounted on an electric vehicle, and when the power supply is insufficient, the power is discharged from the onboard storage battery of the electric vehicle (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-049339 Summary of the Invention [Problem to be solved by the invention]

[0004] When solar power generation equipment is installed in facilities such as factories, the electricity generated by solar power is not used on non-operating days, resulting in the problem of surplus electricity being wasted. One option is to store the electricity generated on non-operating days in a storage battery and use the stored electricity on operating days. However, in a typical factory, the amount of electricity consumed is so large that a fully charged battery is consumed within the factory within a few minutes to an hour. Therefore, the more the amount of solar power generation approaches the factory's power consumption, i.e., the larger the solar power generation equipment, the more difficult it becomes to store the amount of electricity generated on a non-operating day in a storage battery. Therefore, installing a storage battery with a sufficient storage capacity for only a few non-operating days per year increases the cost of installing the storage battery and may result in more waste. Another option is to supply the electricity generated on non-operating days to the grid. However, this requires equipment to ensure that solar-generated electricity does not flow into the grid during power outages or construction work on the grid, which increases the cost of installing the equipment.

[0005] The technology described in Patent Document 1 does not take into account days when solar-generated electricity is not used, such as non-operational days in a factory equipped with solar power generation equipment, and therefore has the problem of being unable to efficiently recover surplus electricity on days when electricity is not used.

[0006] In view of the above problems, an object of the present disclosure is to provide a power recovery system and a terminal device that can recover power generated by a solar power generation facility on non-power usage days when the facility does not use power generated by sunlight. [Means for solving the problem]

[0007] The gist of the present disclosure is as follows.

[0008] (1) An electric power recovery system recovers electric power on non-power usage days at a facility equipped with a solar power generation facility. The non-power usage days are days when the facility does not use electric power generated by solar power generation. The electric power recovery system includes a non-power usage day acquisition unit and a recovery command transmission unit. The non-power usage day acquisition unit acquires information regarding non-power usage days. The recovery command transmission unit transmits a recovery command. The recovery command is a command to drive a vehicle equipped with a storage battery to the facility on the non-power usage day, and to store and recover surplus electric power generated by the solar power generation facility on the non-power usage day in the storage battery.

[0009] (2) The power recovery system according to (1), wherein the recovery command includes location information of the facility.

[0010] (3) The power recovery system according to (1) or (2) above, further comprising a terminal device of the vehicle or the user, wherein the recovery command transmission unit transmits the recovery command to the vehicle or the terminal device.

[0011] (4) The energy recovery system according to (3), further comprising a priority order determination unit, which, when there are a plurality of the vehicles or a plurality of the terminal devices, determines a priority order for transmitting the recovery command to the plurality of the vehicles or a plurality of the terminal devices. The recovery command transmission unit transmits the recovery command to the plurality of the vehicles or a plurality of the terminal devices based on the priority order.

[0012] (5) In the power recovery system described above in (3), the priority determination unit determines the priority when transmitting the recovery command to multiple vehicles based on at least one of the storage capacity of the storage battery, the charging state of the storage battery, and location information of the vehicle.

[0013] (6) The power recovery system according to (4), further comprising a power generation amount prediction unit. The power generation amount prediction unit predicts the amount of power generated by the solar power generation facility on the non-power usage day. The recovery command transmission unit transmits the recovery command to a predetermined number of the vehicles with the highest priority according to the priority determined by the priority determination unit. The recovery command transmission unit determines the predetermined number so that the total remaining capacity of the storage batteries of the vehicles to which the recovery command is transmitted is greater than the power generation amount.

[0014] (7) The power recovery system according to any one of (1) to (6), further comprising a power purchase request receiving unit and a power sale command transmitting unit. The power purchase request receiving unit receives a power purchase request from an area of ​​power consumption. The power sale command transmitting unit transmits a power sale command. The power sale command is a command to drive the vehicle to the area of ​​power consumption based on the power purchase request and sell the power stored in the storage battery at the area of ​​power consumption.

[0015] (8) The power recovery system according to (7), wherein the power selling command includes location information of the consumption area.

[0016] (9) The power recovery system according to (7) or (8), further comprising a terminal device of the vehicle or the user, wherein the power sale command transmission unit transmits the power sale command to the vehicle or the terminal device.

[0017] (10) The energy recovery system according to (9), further comprising a priority order determination unit. When a plurality of the vehicles or a plurality of the terminal devices are present, the priority order determination unit determines a priority order for transmitting the energy selling command to the plurality of the vehicles or the plurality of the terminal devices. The energy selling command transmission unit transmits the energy selling command to the plurality of the vehicles or the plurality of the terminal devices based on the priority order.

[0018] (11) In the power recovery system described above in (10), the priority determination unit determines the priority when transmitting the power sales command to the plurality of vehicles based on at least one of the storage capacity of the storage battery, the state of charge of the storage battery, and location information of the vehicle.

[0019] (12) The terminal device includes a collection command receiving unit and a display processing unit. The collection command receiving unit receives a collection command. The collection command is a command to drive a vehicle equipped with a storage battery to the facility on a day when electricity is not being used, and to have the storage battery collect excess electricity generated by the solar power generation equipment on the day when electricity is not being used. The day when electricity is not being used is a day when the facility equipped with the solar power generation equipment does not use electricity generated by solar power generation. The display processing unit performs processing to display the collection command on a display device.

[0020] (13) The terminal device according to (12), wherein the collection command includes location information of the facility.

[0021] (14) The terminal device according to (12) or (13), further comprising a power selling command receiving unit. The power selling command receiving unit receives a power selling command. The power selling command is a command to drive the vehicle to a power consuming area based on a power purchase request from the power consuming area, and to sell the power stored in the storage battery at the power consuming area. The display processing unit performs processing to display the power selling command on the display device.

[0022] (15) The terminal device according to (14), wherein the electricity selling command includes location information of the consumption area. [Effects of the Invention]

[0023] According to the present disclosure, there is provided a power recovery system and a terminal device that can recover electricity generated by a solar power generation facility on non-power usage days when the facility is not using electricity generated by sunlight. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 1 is a schematic diagram showing an example of the configuration of a fully self-consumption on-site PPA. [Figure 2] 1 is a schematic diagram showing the exterior of a factory equipped with a solar power generation control system. [Figure 3] FIG. 1 is a schematic diagram showing how a vehicle equipped with a storage battery is driven. [Figure 4] FIG. 1 is a schematic diagram showing the configuration of an electric power recovery system. [Figure 5] FIG. 2 is a block diagram showing the configuration of a server. [Figure 6] 1 is a block diagram showing the configuration of a vehicle control system mounted on a vehicle. [Figure 7] FIG. 2 is a block diagram showing the functions of a processor of the server. [Figure 8] FIG. 1 is a schematic diagram showing days when electricity is not used in each factory. [Figure 9] FIG. 2 is a block diagram showing the functions of a terminal device. [Figure 10] FIG. 10 is a schematic diagram showing a screen of a display device on which a collection command is displayed. [Figure 11] FIG. 10 is a schematic diagram showing a screen of a display device on which an electricity selling command is displayed. [Figure 12] FIG. 10 is a sequence diagram showing the time-series flow of processing by a processor of a server and a processor of a terminal device. [Figure 13] FIG. 10 is a sequence diagram showing the time-series flow of processing by a processor of a server and a processor of a terminal device. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, several embodiments according to the present disclosure will be described with reference to the drawings. However, these descriptions are intended to merely exemplify preferred embodiments of the present disclosure and are not intended to limit the present disclosure to such specific embodiments. In the following description, similar components will be given the same reference numerals, and duplicate descriptions will be omitted as appropriate.

[0026] As an example, the solar power generation control system 100 according to this embodiment is a solar power generation facility including solar panels, and is used in the form of a completely self-consumption on-site PPA. In an on-site PPA, as shown in FIG. 1 , a power generation company 300 installs the control system 100 on the premises of a consumer 350, and supplies the electricity generated by the control system 100 to the consumer 350 on-site. The power generation company 300 and the consumer 350 enter into a power purchase agreement, or PPA. Based on the PPA, the power generation company 300 installs the control system 100 and also owns and manages the control system 100. Based on the PPA, the consumer 350 pays the electricity bill to the power generation company 300.

[0027] In the case of a completely self-consumption type, all of the power generated by the control system 100 is consumed within the premises of the consumer 350. Therefore, the power generated by the control system 100 is supplied only to facilities within the premises of the consumer 350, and the power is not supplied to the transmission or distribution network of other power systems.

[0028] If the amount of power generated by the control system 100 is in excess of the amount of power required by the consumer 350, the surplus is stored in a storage battery. If the amount of power generated by the control system 100 is insufficient for the amount of power required by the consumer 350, the shortfall is made up for by the power stored in the storage battery. Alternatively, the shortfall may be made up by the consumer 350 purchasing power from an existing power company 400. Note that, as will be described later, in this embodiment, solar-generated power is recovered on days when power is not being used, so the control system 100 does not necessarily need to be provided with a storage battery. However, the control system 100 may be provided with a storage battery, for example, in anticipation of use in emergencies.

[0029] In this embodiment, a case where the consumer 350 is a factory owner is exemplified. The power generation company 300 installs the control system 100 shown in FIG. 1 in a factory 500 shown in FIG. 2. The consumer 350 may be a party other than the factory owner, and the control system 100 may be installed in a facility, building, or the like other than the factory 500. The control system 100 includes solar panels 102, which are installed on the roof of the factory 500, for example. The control system 100 supplies solar-generated electricity to various facilities installed in the factory 500.

[0030] In the factory 500, the electricity generated by the solar panels 102 each day is often consumed by various facilities within the factory 500 on the same day. On the other hand, even on non-operational days, i.e., days off, the solar panels 102 generate electricity. However, if the facilities consuming the electricity are not operating, the generated electricity is wasted without being consumed. From the perspective of effective utilization of solar-generated electricity, it is preferable to store the electricity generated on non-operational days in a storage battery and consume the stored electricity on operation days. However, the factory 500 may only operate on a few days per year. If the factory 500 were to have a storage battery for these few non-operational days, the cost of installing the storage battery would increase and there would be a possibility of significant waste. Furthermore, if the electricity generated on non-operational days is supplied to the grid, equipment is required to reliably prevent solar-generated electricity from flowing into the grid during power outages or construction work on the grid side, which increases the cost of installing the equipment.

[0031] As described above, in facilities such as factories 500 equipped with solar power generation equipment, it is desirable to effectively utilize solar power on non-power-using days, such as non-operational days. In this embodiment, a command to collect solar power generated on non-power-using days in each factory 500 is transmitted to a vehicle equipped with a storage battery or a user's terminal device. The user is specifically the driver of the vehicle. Based on this command, the vehicle 800 equipped with a storage battery 805 is driven to the factory 500 on the non-power-using day in the factory 500, as shown in FIG. 3 . Then, while the vehicle 800 is parked within the premises of the factory 500, a charging cable on the vehicle 800 is connected to a power supply connector installed in the factory 500, and power generated by the solar panel 102 of the factory 500 on the non-power-using day is stored in the storage battery 805 of the vehicle 800. This prevents the power generated on the non-power-using day in the factory 500 from being discarded and wasted.

[0032] A non-power usage day is a day on which a facility equipped with solar power generation equipment does not use solar-generated electricity. A non-power usage day is not necessarily limited to a day on which a facility equipped with solar power generation equipment does not use any solar-generated electricity. A non-power usage day may also be a day on which the daily power usage is below a specified percentage of the normal daily power usage. Here, the normal daily power usage may be the annual average daily power usage on operating days of the factory 500, or the value obtained by dividing the annual power usage of the factory 500 by 365 days.

[0033] For example, a non-power usage day may be a day on which the equipment for maintaining the manufacturing environment is in operation but the manufacturing equipment is stopped, and therefore the daily power usage is between 5% and 10% of the normal daily power usage. Examples of days on which the daily power usage is between 5% and 10% of the normal daily power usage include Saturdays and Sundays on the weekend.

[0034] Furthermore, a non-power usage day may be a day when the factory does not experience a power outage but most of the factory equipment is stopped, so that the daily power usage is not completely zero but is less than 5% of the normal daily power usage. Alternatively, a non-power usage day may be a day when the factory experiences a complete power outage and the daily power usage is completely zero. Examples of days when the daily power usage is completely zero include regular maintenance days that occur once or twice a year.

[0035] The vehicle 800 and the storage battery 805 may be owned by the power generation company 300. In this case, the command may be transmitted to the vehicle 800 owned by the power generation company 300 or to a terminal device owned by an employee of the power generation company 300. The employee who receives the command drives the vehicle 800 to the factory 500 on a day when the factory 500 does not use electricity and collects the electricity generated by the solar power generation. Furthermore, the vehicle 800 who receives the command may automatically drive to the factory 500 on a day when the factory 500 does not use electricity and collect the electricity generated by the solar power generation. The stored storage battery 805 may be transported by the vehicle 800 to a base of the power generation company 300 and collected at the base of the power generation company 300, as shown in FIG. 3 .

[0036] On the other hand, vehicle 800 may be a private electric vehicle or hybrid vehicle, and storage battery 805 may be a vehicle battery installed in the electric vehicle or hybrid vehicle. In this case, the person who receives the command drives vehicle 800 to factory 500 on a day when electricity is not used at factory 500 and collects solar-generated electricity. The electricity stored in storage battery 805 can be used as power to drive vehicle 800 or as power for general household use. Therefore, factory 500 can also function as a charging station available to the general public. Even in this case, vehicle 800 that receives the command may automatically drive to factory 500 on a day when electricity is not used at factory 500 and collect solar-generated electricity. After collecting the solar-generated electricity, the owner of vehicle 800 pays the power generation company 300 for the electricity.

[0037] When a power purchase request is received from power consumption area 950, vehicle 800 is driven to consumption area 950 as shown in FIG. 3 . The power stored in storage battery 805 is then consumed at consumption area 950. In this case, in accordance with the power purchase request, a power sale command to sell the power stored in storage battery 805 at consumption area 950 is transmitted to vehicle 800 or the user's terminal device. Based on this command, vehicle 800 equipped with storage battery 805 that has stored power is driven to consumption area 950. Then, while vehicle 800 is parked within the premises of consumption area 950, the power supply cable on vehicle 800 is connected to a charging connector at the consumption area, and the power stored in storage battery 805 is supplied to consumption area 950.

[0038] As an example, the consumption location 950 may be a location where an agricultural greenhouse is installed. In the agricultural greenhouse, electricity may be required for heating and cooling the greenhouse depending on weather conditions. In such a case, the consumption location 950 issues a power purchase request.

[0039] Furthermore, the consumption location 950 may be a location where a storage battery is installed and the power stored in the storage battery is used. When the capacity of the power stored in the storage battery becomes insufficient, the consumption location 950 issues a power purchase request. Examples of such consumption locations 950 include other factories, schools, apartment complexes, and shopping malls. Examples of cases where the capacity of the power stored in the storage battery becomes insufficient include power outages caused by natural disasters such as earthquakes and floods. While some facilities are introducing storage batteries to enable business continuity for approximately 72 hours in the event of an emergency, most facilities anticipate power shortages during power outages, and if the power outage continues for a long period of time, the capacity of the storage batteries may be depleted.

[0040] In response to a power purchase request, the power stored in the storage battery 805 is supplied to the consumption location 950, so that the power generated on days when the factory 500 does not use power is effectively utilized at the consumption location 950, and the power generation company 300 can make a profit by selling the power. Also, if the vehicle 800 is a private car, the owner of the vehicle 800 can earn income by selling the power. In addition, in the event of a natural disaster, it is desirable that the cost of selling the power be compensated by a public institution.

[0041] As shown in FIG. 4 , the power recovery system 1000 includes a terminal device 510 in each factory 500 and a server 600. The server 600 may be owned by the power generation company 300. In addition to the server 600, the power recovery system 1000 may also include a vehicle 800, a user's terminal device 900, and a terminal device 960 in a consumption location 950. The vehicle 800, the terminal devices 510, 900, and 960, and the server 600 can communicate with each other via a communication network 700 configured using optical communication lines or the like, and a wireless base station 720 connected to the communication network 700 via a gateway (not shown). That is, the communication network 700 and the wireless base station 720 relay communications between the vehicle 800, the terminal devices 510, 900, and 960, and the server 600.

[0042] As shown in FIG. 5, the server 600 includes a control device 610 and a storage device 620.

[0043] The control device 610 includes a processor 612, a memory 614, and a communication interface 616. The processor 612 includes one or more central processing units (CPUs) and their peripheral circuits. The processor 612 may further include other arithmetic circuits such as a logic unit, a numerical calculation unit, or a graphics processing unit. The memory 614 includes, for example, a volatile semiconductor memory and a non-volatile semiconductor memory. The communication interface 616 corresponds to the communication I / F shown in FIG. 5 and includes an interface circuit for connecting the control device 610 to a network within the server 600 or the communication network 700. The communication interface 616 is configured to be able to communicate with the vehicle 800 and the terminal devices 510, 900, and 960 via the communication network 700 and the wireless base station 720. That is, the communication interface 616 passes signals received from the vehicle 800 or the terminal device 510, 900, 960 via the wireless base station 720 and the communication network 700, i.e., signals of days when electricity is not being used, location information, a request to purchase electricity, and payment information, to the processor 612. The communication interface 616 also transmits signals received from the processor 612, i.e., signals of a collection command and an electricity sale command, to the vehicle 800 or the terminal device 900 via the communication network 700 and the wireless base station 720. Note that the server 600, the terminal device 510, and the terminal device 960 may be configured to be able to communicate with each other via the communication network 700 without via the wireless base station 720.

[0044] The storage device 620 includes, for example, a hard disk drive or an optical recording medium and an access device therefor. The storage device 620 stores various information such as the days when power is not used in the factory 500 and the address of the factory 500. The storage device 620 may also store computer programs for executing processes executed on the processor 612.

[0045] As shown in Fig. 6, the vehicle control system installed in the vehicle 800 includes a positioning information receiver 810, a vehicle control device 820, a wireless terminal 830, one or more sensors 840, a navigation device 850, an electronic control unit (ECU) 860, a display device 870, and a speaker 880. These components are communicably connected via an in-vehicle network that complies with standards such as a Controller Area Network and Ethernet (registered trademark). Hereinafter, the electronic control device 860 will be simply referred to as ECU 860. The hardware functions of the user's terminal device 900 are configured in the same manner as in Fig. 6. However, the user's terminal device 900 does not include the vehicle control device 820. On the other hand, the user's terminal device 900 may include the vehicle control device 820.

[0046] The positioning information receiver 810 acquires positioning information that indicates the current position and attitude of the vehicle 800. For example, the positioning information receiver 810 may be a GPS (Global Positioning System) receiver. Every time the positioning information receiver 810 receives positioning information, it outputs the acquired positioning information together with time information to the ECU 860 via the in-vehicle network.

[0047] Vehicle control equipment 820 is various equipment related to vehicle control, and includes an engine or motor as a drive source for running vehicle 800, a steering device, a braking device, and a vehicle battery for storing electric power.

[0048] The wireless terminal 830 includes, for example, an antenna and a signal processing circuit that performs various processes related to wireless communication, such as modulation and demodulation of wireless signals. The wireless terminal 830 receives downlink wireless signals from the wireless base station 720 and transmits uplink wireless signals to the wireless base station 720. That is, the wireless terminal 830 extracts signals to be transmitted from the server 600 to the vehicle 800, i.e., a collection command and an electricity selling command, from the downlink wireless signals received from the wireless base station 720, and passes the extracted signals to the ECU 860. The wireless terminal 830 also generates an uplink wireless signal including the signal to be transmitted to the server 600 received from the ECU 860, and transmits the extracted wireless signal.

[0049] The one or more sensors 840 include a sensor that detects a current value or a voltage value of a motor of the vehicle control device 820. The one or more sensors 840 also include a voltage sensor that detects a current or voltage between terminals of a battery.

[0050] The navigation device 850 determines a planned driving route from the current location of the vehicle 800 to the destination using a predetermined route search method such as Dijkstra's algorithm. For this purpose, the navigation device 850 is provided with a memory that stores map information. The navigation device 850 determines a planned driving route from the current location of the vehicle 800 to the collection destination or the electricity seller, based on the address of the collection destination included in the collection command or the address of the electricity seller included in the electricity selling command. The map information may be stored in the memory 864 of the ECU 860.

[0051] The ECU 860 includes a processor 862, a memory 864, and a communication interface 866. The processor 862 includes one or more CPUs (Central Processing Units) and their peripheral circuits. The processor 862 may further include other arithmetic circuits such as a logic operation unit, a numerical operation unit, or a graphics processing unit. The memory 864 includes, for example, a volatile semiconductor memory and a non-volatile semiconductor memory. Various types of information are stored in the memory 864. The communication interface 866 corresponds to the communication I / F shown in FIG. 6 and includes an interface circuit for connecting the ECU 860 to an in-vehicle network.

[0052] The display device 870 is configured, for example, by a liquid crystal display (LCD), and is provided near the meter panel or dashboard, and displays the collection command and the electricity selling command received from the server 600. The display device 870 also displays the planned driving route from the current location of the vehicle 800 to the collection destination or the electricity selling destination, which is determined by the navigation device 850. The speaker 880 issues the collection command and the electricity selling command received from the server 600 by voice.

[0053] As shown in FIG. 7 , the processor 612 of the control device 610 of the server 600 includes a non-power usage date acquisition unit 612a, a location information acquisition unit 612b, a collection command transmission unit 612c, a power purchase request reception unit 612d, a power sale command transmission unit 612e, an information acquisition unit 612f, a power generation amount prediction unit 612g, a priority determination unit 612h, a learning unit 612i, and a payment processing unit 612j. Each of these units included in the processor 612 is a functional module implemented by, for example, a computer program running on the processor 612. That is, each of these units included in the processor 612 is configured by the processor 612 and a program (software) for operating the processor 612. The program may be stored in the memory 614 of the control device 610 or in an externally connected recording medium. Alternatively, each of these units included in the processor 612 may be a dedicated arithmetic circuit provided in the processor 612.

[0054] The non-power usage day acquisition unit 612a acquires information about non-power usage days from the terminal device 510 of each factory 500. A non-power usage day is a day on which a facility equipped with solar power generation equipment, i.e., the factory 500, does not use solar power. A list of non-power usage days for each factory 500 acquired by the non-power usage day acquisition unit 612a is shown in FIG. 8. The list of non-power usage days shown in FIG. 8 is stored in the memory 614 of the control device 610.

[0055] The location information acquisition unit 612b acquires location information, ie, addresses, of each factory 500 from the terminal device 510 of each factory 500.

[0056] The collection command transmission unit 612c transmits a collection command to drive the vehicle 800 equipped with the storage battery 805 to a facility equipped with a solar power generation facility on a day when power is not being used, and to store and collect surplus power generated by the solar power generation facility on the day when power is not being used in the storage battery 805. The collection command transmission unit 612c transmits the collection command to the vehicle 800 or the user's terminal device 900. The collection command includes location information of the facility from which the power is to be collected, i.e., the address of the factory 500.

[0057] The power purchase request receiving unit 612d receives a power purchase request from the power consumption area 950. Specifically, the power purchase request receiving unit 612d receives a power purchase request transmitted from a terminal device 960 in the consumption area 950. For example, if an agricultural greenhouse is installed in the consumption area 950, and the expected minimum temperature predicted based on a weather forecast is lower than a predetermined threshold, the temperature in the greenhouse will drop below expected. In such a case, the terminal device 960 in the consumption area 950 transmits a power purchase request to the server 600. Furthermore, if a storage battery is installed in the consumption area 950 and the power stored in the storage battery is being used at the consumption area 950, when the state of charge SOC of the storage battery drops below a predetermined threshold, the terminal device 960 in the consumption area 950 transmits a power purchase request to the server 600. The power purchase request includes location information, i.e., the address, of the consumption area 950.

[0058] Based on the power purchase request, the power selling command transmitting unit 612e transmits a power selling command to drive the vehicle 800 to the consumption place 950 and sell the power stored in the storage battery 805 at the consumption place 950. The power selling command transmitting unit 612e transmits the power selling command to the vehicle 800 or the user's terminal device 900. The power selling command includes location information of the consumption place 950, i.e., the address.

[0059] The information acquisition unit f acquires, via the communication network 700, the identification information of each vehicle 800, the position information of each vehicle 800, the power storage capacity that the storage battery 805 of each vehicle 800 can store, and the SOC of the storage battery 805 of each vehicle 800. The information acquisition unit f also acquires the identification information of each terminal device 900 and the position information of each terminal device 900. If the vehicle 800 and the terminal device 900 are linked, the information acquisition unit f acquires the identification information of the terminal device 900 linked to the identification information of the vehicle 800. Furthermore, the information acquisition unit f acquires weather information from an external server connected via the communication network 700.

[0060] The power generation amount prediction unit 612g predicts the amount of power generated by the solar panel 102. For example, the power generation amount prediction unit 612g predicts the amount of power generated by the solar panel 102 based on weather information acquired by the information acquisition unit 210F from an external server.

[0061] The power generation amount prediction unit 612g may be configured with a trained model that has been machine-learned to predict the power generation amount of the solar panel 102. In this case, the learning unit 210i may, for example, use input values ​​x1, x2, x3, x4, and x5 and training data y t A trained model is created from multiple datasets consisting of the training data y t is obtained, and if the output value from the output layer for this input value is y, if the square error is used as the error function, the square error E is E=(1 / 2)·(yy t ) 2 It can be calculated as follows.

[0062] The learning unit 210i inputs the input values ​​included in the data set to the neural network, and compares the obtained output value y with the training data y included in the data set. t Then, the learning unit 210i calculates the weight w and bias b of each node by performing calculations such as backpropagation or stochastic gradient descent to minimize the sum of the squared errors E obtained from multiple learning datasets, thereby creating a trained model. Note that if training data cannot be detected, the learning unit 210i may create a trained model by unsupervised learning or reinforcement learning.

[0063] When the learning unit 210e creates a trained model corresponding to the power generation amount prediction unit 612g, the input values ​​x1, x2, x3, x4, and x5 are, for example, meteorological information such as the amount of solar radiation, weather, temperature, and wind power. t is the actual value of the amount of power generated by the solar panel 102. As a result, when parameters such as the amount of solar radiation, weather, temperature, and wind power are input into the created trained model, a predicted value of the amount of power generated by the solar panel 102 is output from the trained model.

[0064] When there are multiple vehicles 800 or terminal devices 900, the priority determination unit 612h determines the priority order when transmitting a collection command or an electricity sale command to multiple vehicles 800 or user terminal devices 900. When there are multiple vehicles 800 as candidates for the destination of the collection command or the electricity sale command, the priority determination unit 612h may determine the destination based on the storage capacity that the storage battery 805 can store, the SOC, or the amount of stored electricity of the storage battery 805, which are acquired by the information acquisition unit f. The amount of stored electricity of the storage battery 805 is calculated by multiplying the storage capacity that the storage battery 805 can store by the SOC.

[0065] For example, when there are multiple candidates for the destination of the collection command among vehicles 800, the priority order determination unit 612h preferentially determines, as the destination of the collection command, a vehicle 800 having a lower SOC or a lower amount of stored power in the on-board storage battery 805. Also, for example, when there are multiple candidates for the destination of the power sale command among vehicles 800, the priority order determination unit 612h preferentially determines, as the destination of the power sale command, a vehicle 800 having a higher SOC or a higher amount of stored power in the on-board storage battery 805.

[0066] Furthermore, when there are multiple vehicles 800 as candidates for destinations of a collection command or a power sale command, the priority order determination unit 612h may determine the destination based on the position information of each vehicle 800. When there are multiple terminal devices 900 as candidates for destinations of a collection command or a power sale command, the priority order determination unit 612h may determine the destination based on the position information of each terminal device 900.

[0067] For example, the priority determination unit 612h determines, as a destination of the power collection command, with priority to the vehicle 800 or the terminal device 900 whose current location is closer to the factory 500 that collects power. Also, for example, the priority determination unit 612h determines, as a destination of the power sale command, with priority to the vehicle 800 or the terminal device 900 whose current location is closer to the consumption point 950 that sells power.

[0068] When there are multiple vehicles 800 as candidates for the destination of the collection command or the electricity sale command, the priority order determination unit 612h may determine the destination based on at least one of the charge capacity that the storage battery 805 of each vehicle 800 can charge, the SOC or the amount of stored electricity of the storage battery 805, and the location information of each vehicle 800. For example, the priority order determination unit 612h may preferentially determine, as the destination of the collection command, a vehicle 800 that is located closer to the factory 500 that collects electricity, from among the vehicles 800 whose storage batteries 805 have an SOC of 50% or less. More preferably, the priority order determination unit 612h may normalize and add up the positional relationship between the factory 500 and the vehicle 800, the storage capacity of the storage battery 805, and the SOC of the storage battery 805 to use this as an index of ease of collection, and determine the priorities in order of ease of collection. Furthermore, for example, the priority order determination unit 612h may determine, as a destination of the power selling command, a vehicle 800 located closer to the consumption area 950 to which the power is sold, from among the vehicles 800 whose storage battery 805 has an SOC of more than 50%. More preferably, the priority order determination unit 612h may normalize and add up the positional relationship between the consumption area 950 and the vehicle 800, the power storage capacity of the storage battery 805, and the SOC of the storage battery 805 to use this as an index of ease of power selling, and may determine the priorities in order of ease of power selling.

[0069] Furthermore, the priority order determination unit 612h may be configured with a trained model that has been machine-learned to determine the priority order of destinations when sending a collection command or an electricity selling command. Taking a collection command as an example, the learning unit 210i, as in the above, may determine the priority order of destinations when sending a collection command or an electricity selling command. t When the learning unit 210i creates a trained model for determining the priority when sending a collection command, the input values ​​x1, x2, x3, x4, and x5 are the location of the factory 500 from which the power is to be collected, the location of each vehicle 800, the storage capacity that the storage battery 805 of each vehicle 800 can store, and the SOC of the storage battery 805 of each vehicle 800 at the time when the collection command was sent in the learning stage. In addition, the training data y tis the location of the vehicle 800 that actually collected power in the factory 500, the storage capacity of the storage battery 805, the SOC of the storage battery 805, and the location of the factory 500 from which the power was collected, at the time when the collection command was sent. t may be expressed as an index of ease of collection by normalizing and integrating the positional relationship between the factory 500 and the vehicle 800, the storage capacity, and the SOC. By doing so, when the position of each vehicle 800, the storage capacity and SOC of the storage battery 805 of each vehicle 800, and the position of the factory 500 where the power is to be collected at the time of sending the collection command are input to the created trained model, the training data y t The priority order determination unit 612h calculates a similar index for each vehicle 800 at the time of transmitting the collection command, and determines the priority order in descending order of closestness to the index output from the trained model.

[0070] When the learning unit 210i creates a trained model for determining the priority when sending an electricity selling command, the trained model is created in the same way as in the case of a collection command. In this case, the input values ​​may include the amount of electricity requested by the consumption area 950 in addition to the location information, electricity storage capacity, and SOC. In this way, when the location information, electricity storage capacity, SOC, and the amount of electricity requested by the consumption area 950 of each vehicle 800 at the time of sending the electricity selling command are input to the created trained model, the training data y t An index indicating the ease of selling power corresponding to the collected power is output. The priority order determining unit 612h determines the priority order based on this index, similar to the collection command.

[0071] When transmitting a collection command to multiple vehicles 800, the collection command transmission unit 612c may transmit the collection command to a predetermined number of vehicles 800 with the highest priority according to the priority determined by the priority determination unit 612h. In this case, the collection command transmission unit 612c compares the amount of power generated by the control system 100 on a day when power is not used with the remaining capacity of the storage battery 805 of the vehicle 800 that transmits the collection command. The collection command transmission unit 612c may then determine the predetermined number so that the total remaining capacity of the storage battery 805 of the vehicle 800 that transmits the collection command is greater than the amount of power generated by the control system 100 on a day when power is not used, and transmit the collection command to this predetermined number of vehicles 800. This makes it possible to store power in the storage battery 805 of all vehicles 800 that are sent for collection, thereby preventing the occurrence of a vehicle 800 that is sent for collection but is unable to store power in its storage battery 805. The amount of power generated by the control system 100 on a day when power is not used is predicted by the power generation amount prediction unit 612g.

[0072] The payment processing unit 612j receives payment information from the vehicle 800 that collected the electricity or the user's terminal device 900, and performs payment processing when the conditions required for payment are met. This completes the purchase procedure for the collected electricity by the user of the vehicle 800. Note that the payment processing may be performed only when the surplus electricity is collected by a member of the public. In other words, when the power generation company 300 owns the vehicle 800 and the storage battery 805 and collects the electricity, the collected electricity continues to be owned by the power generation company 300, and therefore payment processing does not need to be performed.

[0073] The processor 862 of the ECU 860 of the vehicle 8009 is one aspect of an on-board terminal device. As shown in FIG. 9, the processor 862 includes a collection command receiving unit 862a, an electricity selling command receiving unit 862b, a display processing unit 862c, a vehicle control unit 862d, and a payment information transmitting unit 862e. Each of these units included in the processor 862 is a functional module implemented by, for example, a computer program running on the processor 862. That is, each of these units included in the processor 862 is configured by the processor 862 and a program (software) for causing the processor 862 to function. The program may be recorded in the memory 864 of the ECU 860 or an externally connected recording medium. Alternatively, each of these units included in the processor 862 may be a dedicated arithmetic circuit provided in the processor 862. The processor of the terminal device 900 is configured similarly to the processor 862 of the ECU 860 shown in FIG. 9, but the processor of the terminal device 900 does not include the vehicle control unit 862d.

[0074] The recovery command receiving unit 862a receives a recovery command from the server 600 to drive the vehicle 800 equipped with the storage battery 805 to the facility on a non-power usage day when the facility equipped with the solar power generation equipment does not use electricity generated by solar power generation, and to recover the surplus electricity generated by the solar power generation equipment on the non-power usage day into the storage battery 805.

[0075] The power selling command receiving unit 862b receives a power selling command from the server 600 to drive the vehicle 800 to the power consumption location 950 based on a power purchase request from the power consumption location 950 and sell the power stored in the storage battery 805 at the power consumption location 950.

[0076] The display processing unit 862c performs processing for displaying the collection command or the electricity sale command on the display device 870. As shown in an example of a display of a collection command in Fig. 10, the display device 870 displays information such as that factory A is not using electricity, that the driver should drive the vehicle 800 equipped with the storage battery 805 to factory A and be prompted to collect electricity, the address of factory A, etc. Furthermore, as shown in an example of a display of an electricity sale command in Fig. 11, the display device 870 displays information such as that there is a consumption area that needs electricity, that the driver should drive the vehicle 800 equipped with the storage battery 805 to the consumption area and be prompted to sell electricity, the address of the consumption area, etc. Therefore, the driver of the vehicle 800 who sees these displays can drive the vehicle 800 to factory A to collect electricity, or can drive the vehicle 800 to the consumption area and sell the electricity stored in the storage battery 805.

[0077] The vehicle control unit 862d controls the vehicle control device 820 based on the collection command to drive the vehicle 800 to the factory 500 on a day when electricity is not being used. The vehicle control unit 862d also controls the vehicle control device 820 based on the electricity sale command to drive the vehicle 800 to the consumption location 950. At this time, the vehicle control unit 862d drives the vehicle 800 to the factory 500 or the consumption location 950 according to the planned driving route to the collection destination factory 500 or the electricity sale destination consumption location 950, which is determined by the navigation device 850.

[0078] When the vehicle 800 recovers power, the payment information transmission unit 862e transmits payment information to the server 600. The payment information may include identification information of the vehicle 800, identification information of the user's terminal device 900, the amount of power recovered, the user's address and name, or credit card information for payment. When the server 600 receives the payment information, the payment processing unit 612j of the server 600 performs payment processing.

[0079] Furthermore, when the vehicle 800 purchases electricity at the consumption location, the payment information transmission unit 862e transmits payment information to the terminal device 960 at the consumption location. The payment information may include identification information of the vehicle 800, identification information of the user's terminal device 900, a transfer destination for the electricity sale fee, the user's address and name, or the amount of electricity sold. When the terminal device 960 receives the payment information and the electricity sale fee is transferred to the user's account, payment is completed.

[0080] The chronological flow of the above processing by the processor 612 of the server 600 and the processor 862 of the ECU 860 will be described with reference to Fig. 12. First, the non-power usage day acquisition unit 612a of the processor 612 acquires non-power usage days from the terminal device 510 of each factory 500 (step S10). Next, the location information acquisition unit 612b acquires location information of each factory 500 from the terminal device 510 of each factory 500 (step S12). Next, it is determined whether or not it is a non-power usage day (step S14). If it is a non-power usage day, the collection command transmission unit 612c transmits a collection command to collect electricity generated by solar power generation on the non-power usage day in each factory 500 (step S16).

[0081] Next, the collection command receiving unit 862a of the processor 862 determines whether or not a collection command has been received (step S20), and if the collection command receiving unit 862a has received a collection command, the display processing unit 862c performs processing for displaying the collection command on the display device 870 (step S22). As a result, the driver of the vehicle 800 drives the vehicle 800 to the factory 500 on a day when electricity is not being used, based on the collection command displayed on the display device 870. Alternatively, in step S22, the vehicle control unit 862d automatically drives the vehicle 800 to the factory 500 on a day when electricity is not being used, based on the collection command.

[0082] 13, a chronological flow of processing when a power purchase request is issued from the consumption area 950 will be described. First, the terminal device 960 of the consumption area 950 transmits the power purchase request to the server 600 (step S30). Next, the power purchase request receiving unit 612d of the processor 612 of the server 600 determines whether or not the power purchase request has been received (step S40). If the power purchase request has been received, the power sale command transmitting unit 612e transmits a power sale command (step S42).

[0083] Next, the power selling command receiving unit 862b of the processor 862 of the ECU 860 determines whether or not it has received a power selling command (step S50), and if it has received a power selling command, the display processing unit 862c performs processing for displaying the power selling command on the display device 870 (step S52). As a result, the driver of the vehicle 800 drives the vehicle 800 to the consumption place 950 based on the power selling command displayed on the display device 870. Alternatively, in step S52, the vehicle control unit 862d automatically drives the vehicle 800 to the consumption place 950 based on the power selling command.

[0084] As described above, according to the power recovery system of this embodiment, on days when the factory 500 does not use electricity, the vehicle 800 equipped with the storage battery 805 is driven to the factory 500 to recover solar-generated electricity. This prevents solar-generated electricity from being wasted on days when electricity is not used. There is no need to install a storage battery in the factory to store electricity generated on days when electricity is not used, and there is no need to install equipment to supply electricity from the factory 500 to the grid, so the introduction cost of the power recovery system is reduced. [Explanation of symbols]

[0085] 100 Control System 102 Solar Panels 300 power generation companies 350 Consumer 400 electric power companies 500 factories 510,900,960 terminal equipment 600 servers 610 Control device 612,862 processors 612a Non-power usage date acquisition part 612b Location information acquisition unit 612c Recovery Command Transmission Unit 612d Power purchase request receiving unit 612e Power sales command transmission unit 612f Information Acquisition Department 612g Power generation prediction section 612h Priority determination unit 612i Learning Department 612j Payment processing unit 614,864 memory 616,866 communication interfaces 620 Storage Device 700 Communication Network 720 Wireless Base Station 800 vehicles 805 Storage battery 810 Positioning information receiver 820 Vehicle control equipment 830 Wireless Terminal 840 Sensors 850 Navigation Device 860 Electronic Control Unit 862a Recall Command Receiving Unit 862b Power sales command receiver 862c Display processing unit 862d Vehicle control unit 862e Payment information transmission unit 870 Display device 880 Speaker 950 consumption area 1000 Power Recovery System

Claims

1. A power recovery system that recovers power on days when power is not used in a completely self-consumption facility that is equipped with a solar power generation facility and consumes all of the power generated by the solar power generation facility, The non-power usage days are days on which the facility does not use solar-generated electricity, a non-power usage day acquisition unit that acquires information about the non-power usage day; a recovery command transmission unit that transmits a recovery command to the vehicle or a terminal device of a user of the vehicle to drive the vehicle equipped with the storage battery to the facility on the day when electricity is not being used, and to store and recover surplus electricity generated by the solar power generation facility on the day when electricity is not being used in the storage battery; a priority order determination unit that determines a priority order when transmitting the collection command to the plurality of vehicles or the plurality of terminal devices when there are a plurality of the vehicles or the plurality of the terminal devices; A power recovery system comprising:

2. The power recovery system according to claim 1 , wherein the recovery command includes location information of the facility.

3. The power recovery system described in claim 1, wherein the priority determination unit determines the priority based on the storage capacity of the storage battery, the SOC or storage amount of the storage battery, or the location information of the vehicle.

4. An electric power recovery system as described in claim 1, wherein the recovery command transmission unit transmits the recovery command to a predetermined number of the vehicles with the highest priority.

5. The power recovery system described in claim 3, wherein the recovery command transmission unit determines the priority using a trained model that has been machine-learned to input the storage capacity of the storage battery, the SOC or storage amount of the storage battery, location information of the vehicle, and location information of the facility, and output an index representing the ease of recovery of the surplus electricity by each of the vehicles.

6. Further comprising a power generation amount prediction unit, The power recovery system according to claim 1 , wherein the power generation amount prediction unit predicts the amount of power generated by the photovoltaic power generation facility on a day when no power is used.

7. a power purchase request receiving unit that receives a power purchase request from a power consumption area; a power selling command transmitting unit that transmits a power selling command to drive the vehicle to the consumption location based on the power purchasing request and to sell the power stored in the storage battery at the consumption location; The power harvesting system of claim 1 further comprising:

8. The power recovery system according to claim 7 , wherein the power selling command includes location information of the consumption location.

9. The power recovery system according to claim 7 , wherein the power selling command transmission unit transmits the power selling command to the vehicle or the terminal device.

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