WO2023085334A1

WO2023085334A1 - Mobile body charging system and mobile body charging method

Info

Publication number: WO2023085334A1
Application number: PCT/JP2022/041781
Authority: WO
Inventors: 晃良柳樂; 利彦前原; 秀紀金井; 智之槙野; 智広田畑
Original assignee: 中国電力株式会社
Priority date: 2021-11-15
Filing date: 2022-11-09
Publication date: 2023-05-19
Also published as: JPWO2023085334A1

Abstract

Disclosed is a mobile body charging station capable of stable self-operation, comprising: power generation equipment 3 that generates electric power with sunlight; a system storage battery that stores the electric power generated by the power generation equipment 3; a charger 5 that charges an on-vehicle storage battery 21; power receiving equipment including a management device; and the management device. When power is being generated by the power generation equipment 3, the management device gives: a first priority to supplying the electric power generated by the power generation equipment 3 to the power receiving equipment, and charging the system storage battery to a first predetermined capacity lower than full charge with the electric power generated by the power generation equipment 3; a second priority to charging the on-vehicle storage battery 21 connected to the charger 5 to full charge; and a third priority to charging the system storage battery to full charge.

Description

Mobile charging system and mobile charging method

The present invention relates to a mobile body charging system and a mobile body charging method for charging an on-board storage battery of a mobile body.

In recent years, with the spread of electric vehicles and the like, efforts have been made to promote a decarbonized society, and charging the on-board storage batteries of electric vehicles, etc. with solar power generation has become widely practiced. At this time, by providing a storage battery/secondary battery that stores power generated by solar power, the on-board storage battery can be charged even at night or in rainy weather.

Also, there is known a solar battery charging station that efficiently uses a secondary battery stored by solar power generation to efficiently charge as many electric vehicles as possible (see, for example, Patent Document 1). . This station consists of a secondary battery that stores the power generated by the solar cell module, a charging stand that supplies the charging power to the vehicle, lighting fixtures that light up with the power supplied from the secondary battery, and the vehicle. and a control unit for controlling lighting of the lighting equipment.

JP 2011-125091 A

By the way, when charging the secondary battery and on-board storage battery and supplying power to the lighting fixtures, etc., using only solar power without using a commercial power supply (in the case of independent operation), it is necessary to function in a stable and independent operation. be. In other words, considering the capacity of solar panels and secondary batteries, the state of solar power generation, the remaining capacity of secondary batteries, the power required for management and control devices, lighting fixtures, etc., the timing, where, and how much charging should be performed. It is necessary to properly control whether or not

However, the solar battery charging station described in Patent Document 1 only suppresses the power consumption of the secondary battery by detecting the vehicle and controlling the lighting of the lighting equipment, and it is sufficiently expected to operate stably. Can not.

Therefore, an object of the present invention is to provide a mobile charging system and a mobile charging method that enable stable operation when charging an on-board storage battery using only natural energy without using a commercial power source.

In order to solve the above problems, the invention of claim 1 provides a power generation facility that generates power using natural energy including sunlight, a system storage battery that stores the power generated by the power generation facility, and a vehicle mounted on a mobile body. A charger for charging a storage battery, and a power receiving facility including a management device, wherein the management device supplies power generated by the power generation facility to the power receiving facility when power is being generated by the power generation facility. In addition, charging the system storage battery to a first predetermined capacity lower than a full charge with the power generated by the power generation equipment is given a first priority, and the on-board storage battery connected to the charger. charging to full charge is given as a second priority, and charging the system storage battery to full charge is given as a third priority.

The invention according to claim 2 is the mobile charging system according to claim 1, wherein when the power generation equipment is not generating power, the management device supplies power from the system storage battery to the power receiving equipment, The on-board storage battery connected to the charger is charged with electric power of the system storage battery until the capacity of the system storage battery reaches a second predetermined capacity larger than zero.

The invention of claim 3 is the mobile charging system of

claim

1 or 2, wherein the management device is capable of charging the on-board storage battery based on the power generation state of the power generation equipment and the current capacity of the system storage battery. It is characterized by calculating the amount of electricity and delivering at least one of the amount of electricity that can be charged and the current capacity of the on-board storage battery to the outside.

The invention of claim 4 is characterized in that, in the mobile charging system of claims 1 to 3, the mobile body charging system further comprises a formulating means for formulating a charging plan for the on-board storage battery based on weather information.

The invention of claim 5 is the mobile charging system of claim 4, wherein the formulating means formulates a charging plan for the on-board storage battery based on the past power consumption of the mobile. do.

According to a sixth aspect of the present invention, in the charging system for a mobile body according to any one of claims 1 to 5, the system operation state is determined based on the system operation state including the past power generation amount of the power generation facility and the charge/discharge amount of the system storage battery. and a management server that calculates a recommended value for at least one of the power generation capacity of the power generation equipment and the capacity of the system storage battery that conforms to the above.

The invention of claim 7 is a power generation facility that generates power using natural energy including sunlight, a system storage battery that stores the power generated by the power generation facility, and a charger that charges an on-board storage battery mounted on a mobile object. and a power receiving facility including a management device, and when power is being generated by the power generating facility, the power generated by the power generating facility is supplied to the power receiving facility, and the power generated by the power generating facility is used to The first priority is to charge the system storage battery to a first predetermined capacity lower than full charge, and the second priority is to charge the on-board storage battery connected to the charger to full charge. and charging the system storage battery to full charge as a third priority.

The invention of claim 8 is the mobile charging method of claim 7, in which the power of the system storage battery is supplied to the power receiving equipment when the power generation equipment is not generating power, and the capacity of the system storage battery is increased. The onboard storage battery connected to the charger is charged with the electric power of the system storage battery until reaching a second predetermined capacity greater than zero.

According to the inventions of

claims

1 and 7, when power is being generated by the power generation equipment, the power generated by the power generation equipment is fed to the power receiving equipment. Then, the power generated by the power generation equipment first charges the system storage battery to a first predetermined capacity, then charges the on-board storage battery connected to the charger to full charge, and then charges the system storage battery to full charge. The storage battery is charged to full charge. In this way, the capacity of the system storage battery is first secured up to the first predetermined capacity, and then the on-board storage battery is charged. It becomes possible to operate this charging system for mobile bodies.

That is, by setting the first predetermined capacity to an appropriate capacity in consideration of the capacity of the power generation equipment and system storage battery, the power required for the power receiving equipment, the power required in an emergency (mobile body requiring emergency charging), etc. The power necessary for system operation can be secured preferentially. In addition, after the system storage battery is charged to the first predetermined capacity (before being charged to full charge), the onboard storage battery is charged to full charge, so that the onboard storage battery can be charged appropriately and quickly. Become. In this way, the system for charging the on-board storage battery can be stably operated without using a commercial power source. Furthermore, when power is generated by the power generation facility, the power generated by the power generation facility directly charges the on-board storage battery, that is, the power stored in the system storage battery does not charge the on-board storage battery. It is possible to keep the capacity low.

According to the inventions of

claims

2 and 8, the power of the system storage battery is supplied to the power receiving equipment when the power generating equipment is not generating power. After that, the on-board storage battery is charged with the electric power of the system storage battery until the capacity of the system storage battery reaches the second predetermined capacity. In this way, the capacity of the system storage battery is first secured up to the second predetermined capacity, and then the on-board storage battery is charged. It becomes possible to operate this charging system for mobile bodies.

In other words, by setting the second predetermined capacity to an appropriate capacity in consideration of the capacity of the power generation equipment and system storage battery, the power required for the power receiving equipment, the power required in an emergency, etc., the power required for system operation is prioritized. can be secured to In addition, since the on-board storage battery is charged after the capacity of the system storage battery is secured up to the second predetermined capacity, it is possible to charge as many on-board storage batteries as possible. In this way, it is possible to stably operate a system that charges the on-board storage battery even when the power generation equipment is not generating power without using a commercial power source.

According to the third aspect of the invention, since the amount of electricity that can be used to charge the on-board storage battery is distributed to the outside, a user who is planning to charge the on-board storage battery can obtain the amount of electricity that can be charged, and can start charging. It is possible to determine whether or not to take appropriate measures. Moreover, since the amount of electricity that can be used to charge the on-board storage battery is determined based on the power generation status of the power generation equipment and the current capacity of the system storage battery, it is possible to determine a more appropriate amount of electricity based on the amount of power generated and stored. .

In addition, since the current capacity and remaining capacity of the on-board storage battery are delivered to the outside, for example, a user planning to move a mobile vehicle in a car sharing service can determine how far the vehicle can be moved. It will be possible to determine whether it can be used without additional charging), increasing convenience.

According to the fourth aspect of the invention, the charging plan for the on-board storage battery is formulated based on the weather information, that is, based on the power generation prediction of the power generation facility that generates power using natural energy that is affected by the weather. It becomes possible to formulate an appropriate charging plan according to the prediction. By formulating an appropriate charging plan, users planning to charge the on-board storage battery and users planning to move the vehicle can charge and move in a planned and appropriate manner. becomes.

According to the fifth aspect of the invention, the charging plan for the on-board storage battery is formulated based on the past power consumption of the mobile body, that is, based on the amount of electricity required to charge the on-board storage battery. , it becomes possible to formulate an appropriate charging plan according to the predicted charging amount.

According to the sixth aspect of the invention, since the recommended values of the power generation capacity of the power generation equipment and the capacity of the system storage battery that are suitable for the system operation state are determined, the appropriate power generation capacity and power storage capacity that are suitable for the operation state are determined. , it is possible to operate efficiently and economically. Moreover, since the recommended value is determined based on the past record including the power generation amount of the power generation equipment and the charge/discharge amount of the system storage battery, it is possible to determine an appropriate recommended value.

1 is a schematic configuration diagram showing a vehicle charging station according to Embodiment 1 of the present invention; FIG. 2 is a schematic configuration block diagram of the vehicle charging station of FIG. 1; FIG. 3 is a schematic configuration block diagram showing a management device of the vehicle charging station of FIG. 2; FIG. 4 is a flow chart showing a control procedure of a control unit of the management device of FIG. 3; FIG. 2 is a schematic configuration diagram showing a car sharing station according to Embodiment 2 of the present invention;

The present invention will be described below based on the illustrated embodiments.

(Embodiment 1)
1 to 4 show this embodiment, and FIG. 1 is a schematic configuration diagram showing a vehicle charging station (mobile body charging system) 1 according to this embodiment. This vehicle charging station 1 is a charging port for charging an on-vehicle storage battery (mounted storage battery) 21 mounted on a vehicle (moving body) 2. In this embodiment, any vehicle 2 is a vehicle charging station 1. The case of charging will be mainly described. In addition, a plurality of vehicle charging stations 1 are installed in different places, and if the vehicle 2 is equipped with an in-vehicle storage battery 21, an electric vehicle (EV), an electric motorcycle, a kick skater, an electric skateboard, an electric kickboard, an electric Any vehicle such as a forklift may be used.

The vehicle charging station 1 is a self-sustaining charging station operated only by electric power generated by the own station 1 without using a commercial power supply, and mainly includes a power generation facility 3, a station storage battery (system storage battery) 4, and a charger 5. , power receiving equipment including lighting equipment 61 and management device 7 , and cloud server (management server) 8 , and station storage battery 4 and management device 7 are housed in cabinet 41 .

The power generation facility 3 is a facility that generates power using natural energy. Here, natural energy is renewable energy obtained from natural phenomena such as sunlight, wind power, and tidal power, and in this embodiment, power is generated using sunlight. That is, as shown in FIG. 2, a solar panel 31 that generates electricity with sunlight, a first hybrid PCS (power conditioner) 32 that converts the generated DC power into DC power and AC power of a predetermined voltage, Prepare. Then, the DC power converted by the first hybrid PCS 32 is fed to the station storage battery 4 and the vehicle-mounted storage battery 21, and the AC power converted by the first hybrid PCS 32 is fed to power receiving equipment such as lighting fixtures 61. It's like

The station storage battery 4 is a secondary battery that stores the power generated by the power generation equipment 3 and supplies power to the vehicle-mounted storage battery 21, the lighting equipment 61, and the like. That is, the electric power generated by the power generation equipment 3 is converted into a predetermined voltage by the second hybrid PCS 42, and the station storage battery 4 is charged. Further, the electric power discharged from the station storage battery 4 is converted by the second hybrid PCS 42 into DC power of a predetermined voltage and supplied to the on-vehicle storage battery 21, and is also converted into AC power of a predetermined voltage to be used in lighting fixtures. 61 or the like is supplied with power.

The charger 5 is a device for charging the vehicle-mounted storage battery 21, and converts and adjusts the power supplied from the power generation equipment 3 or the station storage battery 4 into voltage and current suitable for charging the vehicle-mounted storage battery 21, thereby charging the vehicle-mounted storage battery 21. to charge. In this embodiment, two such chargers 5 are installed so that two vehicle-mounted storage batteries 21 can be charged at the same time.

The power receiving equipment receives power from the power generation equipment 3 and the station storage battery 4, is equipment necessary for operating the vehicle charging station 1, and includes the lighting equipment 61, the security camera 62, the management device 7, and the like. Electric power from the power generation equipment 3 or the station storage battery 4 is supplied to these power receiving equipment via the distribution board 6 .

The management device 7 is a device that controls and manages the power generation equipment 3, the station storage battery 4, the charger 5, and the like. As shown in FIG. 3, the management device 7 mainly includes a touch panel 71, a communication unit 72, a monitoring unit 73, a storage unit 74, a control unit 75, a calculation unit 76, and a central unit for controlling them. and a processing unit 77 .

The touch panel 71 is a panel (display unit, input unit) for displaying and inputting various kinds of information. It is used by a person to input various information and commands. Thus, in this embodiment, the management device 7 is provided with the touch panel 71, but each charger 5 may be provided with a touch panel.

The communication unit 72 is an interface for communicating with the outside. ) and send and receive information. It also receives weather information (including weather forecast), which will be described later, from a weather information server, and receives past power consumption of each vehicle 2 directly from the vehicle 2 or from a server that collects power consumption.

The monitoring unit 73 is a device that measures and monitors the states of the power generation equipment 3, the station storage battery 4, the power receiving equipment, and the like. Specifically, it measures and monitors the amount of power generated by the power generation equipment 3, the voltage of the station storage battery 4, the amount of charge, the amount of discharge, the remaining capacity (SOC: State Of Charge), and the power consumption of power receiving equipment such as the lighting equipment 61. .

The storage unit 74 is a memory that stores various information and data, and stores the system operation state including the past power generation amount of the power generation equipment 3 and the charge/discharge amount of the system storage battery 4 measured by the monitoring unit 73, and performs communication. The past power consumption and the like of each vehicle 2 received by the unit 72 are stored. Here, instead of the past power consumption of each vehicle 2, the amount of charge with which each vehicle 2 was charged in the past is stored, and the amount of charge is used instead of the power consumption when formulating a charging plan, which will be described later. good too.

The control unit 75 is a controller that controls the

hybrid PCS

32, 42, the charger 5, etc., and controls the power supply destinations from the power generation equipment 3 and the system storage battery 4, and the like. That is, as shown in FIG. 4, when power is being generated by the power generation equipment 3 (“Y” in step S1), first, it is essential to supply the power generated by the power generation equipment 3 to the power receiving equipment. and In addition, the first priority is to charge the system storage battery 4 to a first predetermined capacity lower than full charge (SOC=100%) with the power generated by the power generation equipment 3 . That is, when the remaining capacity of the system storage battery 4 is less than the first predetermined capacity ("N" in step S2), the power generated by the power generation equipment 3 is used to increase the system storage battery 4 to the first predetermined capacity. Charge (step S3).

Here, the first predetermined capacity is the amount of power/electricity required to operate the vehicle charging station 1 stably for a long time. It is set in consideration of power (power required to charge the vehicle 2 in an emergency). For example, even if power generation by the power generation equipment 3 stops, the amount of electricity is set so that power can be supplied to the power receiving equipment for a predetermined time (for example, several hours) and several on-vehicle storage batteries 21 can be charged.

Next, when the system storage battery 4 has a first predetermined capacity or more ("Y" in step S2), the second priority is to charge the vehicle-mounted storage battery 21 connected to the charger 5 to full charge. and That is, while the vehicle 2 is parked at the vehicle charging station 1 and the onboard storage battery 21 is connected to the charger 5 and the onboard storage battery 21 is not fully charged ("N" in step S4), power is generated by the power generation equipment 3. With electric power, the vehicle-mounted storage battery 21 is charged to full charge via the charger 5 (step S5).

Here, in the present invention, the full charge of the on-vehicle storage battery 21 means not only the full charge (SOC=100%) in terms of specifications and performance of the on-board storage battery 21, but also the desired charge amount input by the driver or the like on the touch panel 71. (SOC indicating how much charging is desired) is also included. That is, step S5 includes a case where the driver or the like charges the battery to the desired charging amount.

Subsequently, when the vehicle-mounted storage battery 21 connected to the charger 5 is fully charged, or when the vehicle-mounted storage battery 21 is not connected to the charger 5 ("Y" in step S4), the system storage battery The third priority is charging 4 to full charge. That is, when there is no vehicle-mounted storage battery 21 to be charged and the system storage battery 4 is not fully charged (SOC=100%) ("N" in step S6), the system storage battery 4 is charged with the power generated by the power generation equipment 3. Charge to full charge (step S7). Here, when the vehicle-mounted storage battery 21 to be charged during this charging is connected to the charger 5, the charging to the system storage battery 4 is stopped and the vehicle-mounted storage battery 21 is charged to full charge (return to step S4).

Then, when there is no vehicle-mounted storage battery 21 to be charged and the system storage battery 4 is fully charged (in the case of "Y" in step S6), it is only necessary to supply the power generated by the power generation equipment 3 to the power receiving equipment. The output of the hybrid PCS 32, that is, the power generation equipment 3 is suppressed (step S8). Such processing is repeated while the power generation equipment 3 is generating power.

On the other hand, when power is not being generated by the power generating equipment 3 ("N" in step S1), it is essential to first supply the power of the system storage battery 4 to the power receiving equipment. After that, the onboard storage battery 21 connected to the charger 5 is charged with the power of the system storage battery 4 until the remaining capacity of the system storage battery 4 reaches a second predetermined capacity larger than zero (SOC=0%). . That is, when the remaining capacity of the system storage battery 4 is less than the second predetermined capacity ("N" in step S11), the current state is set to the standby state (step S12), and charging of the on-vehicle storage battery 21 is stopped. Not allowed. On the other hand, if the remaining capacity of the system storage battery 4 is equal to or greater than the second predetermined capacity ("Y" in step S11) and the vehicle-mounted storage battery 21 connected to the charger 5 is not fully charged ("N" in step S13). case), the vehicle-mounted storage battery 21 is charged to full charge with power from the system storage battery 4 (step S14). At this time, when the remaining capacity of the system storage battery 4 reaches the second predetermined capacity during charging of the on-vehicle storage battery 21, the charging is stopped and the standby state is set (step S12), and the on-vehicle storage battery 21 cannot be charged. and Such processing is repeated while the power generation equipment 3 is not generating power.

Here, the second predetermined capacity is the amount of power/electricity required to operate the vehicle charging station 1 stably for a long period of time. It is set in consideration of power (power required to charge the vehicle 2 in an emergency). For example, even if the non-generating state of the power generation equipment 3 continues, the amount of electricity may be set to a value that can be supplied to the power receiving equipment for a predetermined time (for example, several hours), and may be the same value as the first predetermined capacity, It can be different values.

The control unit 75 repeats such processing in real time according to the power generation state of the power generation equipment 3.

The calculation unit 76 is a processing unit that performs various calculations, and based on the power generation state of the power generation equipment 3 and the current capacity/remaining capacity of the system storage battery 4, determines the amount of electricity that can charge the onboard storage battery 21 and distributes it to the outside. . That is, whether the power generation facility 3 is currently generating power, how much power is generated, how much is the remaining capacity of the system storage battery 4, whether the on-vehicle storage battery 21 is currently being charged, how much power is currently consumed by the power receiving facility, and so on. Based on this, the amount of electricity that can newly charge the in-vehicle storage battery 21 in the future is determined.

For example, if the power generation equipment 3 is currently generating a predetermined amount of power or more (for example, the amount of power generated in fine weather or more), the chargeable amount of electricity is significantly larger than the remaining capacity of the system storage battery 4 (chargeable amount of electricity "Dai"). In addition, if the power generation equipment 3 is currently generating a small amount (for example, less than the amount of power generated in fine weather), the chargeable amount of electricity is greater than the remaining capacity of the system storage battery 4 (chargeable amount of electricity is "medium"). and divide. On the other hand, if the power generating equipment 3 is not currently generating power, the chargeable amount of electricity is calculated as the capacity obtained by subtracting the second predetermined capacity from the remaining capacity of the system storage battery 4 (chargeable amount of electricity "small"). Furthermore, if it is daytime and the power consumption of the power receiving facility is small, the amount of chargeable electricity is calculated to be large, and if it is currently nighttime and the power consumption of the power receiving facility is large, the chargeable amount of electricity is calculated to be small. At this time, if the vehicle-mounted storage battery 21 is currently being charged, the amount of electricity that can be charged is determined based on the remaining capacity of the system storage battery 4 after the vehicle-mounted storage battery 21 is fully charged.

In addition to determining the chargeable amount of electricity, the number of vehicles 2 that can be charged is determined based on the chargeable amount of electricity and the average amount of electricity (average charging amount) required to fully charge the vehicle-mounted storage battery 21. may For example, as described above, when the chargeable amount of electricity is determined to be “large”, the number of rechargeable batteries is determined to be “large”, and when the chargeable amount of electricity is determined to be “medium”, the remaining amount of the system storage battery 4 is determined. The value obtained by dividing the capacity obtained by subtracting the first predetermined capacity from the capacity by the average charging amount is a number of units, and the number of chargeable units is determined as "a number of units + several units", and the chargeable amount of electricity is determined as "small". calculates the number of chargeable batteries as "b number" by dividing the capacity obtained by subtracting the second predetermined capacity from the remaining capacity of the system storage battery 4 by the average charging amount as b number of batteries.

Then, the chargeability information including the chargeable amount of electricity and the number of chargeable devices calculated in this way is transmitted to the information distribution server. As a result, a user or the like who is planning to charge the in-vehicle storage battery 21 accesses the information distribution server to acquire and know the chargeability information.

The cloud server 8 is communicatively connected to the management device 7 and the like, and based on the system operation state including the past power generation amount of the power generation equipment 3, the charge/discharge amount of the system storage battery 4, and the power consumption of the power receiving equipment, this system operation A recommended value for the power generation capacity of the power generation equipment 3 and the capacity of the system storage battery 4 that is suitable for the state is determined. That is, the capacity of the power generation equipment 3 and the system storage battery 4 suitable for actual operation is determined based on the past performance data and system operation status of operating the vehicle charging station 1 . For example, when the system storage battery 4 is rarely fully charged, the current power generation capacity of the power generation equipment 3 is considered to be small, so the recommended power generation capacity of the power generation equipment 3 is calculated to be larger than the current power generation capacity. In addition, when the charge/discharge amount of the system storage battery 4 is large and there are many cases where the system storage battery 4 is almost completely discharged, the current capacity of the system storage battery 4 is considered to be small. also divide greatly. Recommended values are determined in the same manner for these reverse cases. Then, the recommended value calculated in this manner is transmitted to a predetermined manager's terminal or the like.

Next, a vehicle charging method using the vehicle charging station 1 having such a configuration will be described.

When the vehicle 2 is parked at the vehicle charging station 1, the onboard storage battery 21 is connected to the charger 5, and the driver or the like inputs the desired amount of charge using the touch panel 71, charging of the onboard storage battery 21 is started. While the power generation equipment 3 is generating power, the power generated by the power generation equipment 3 is supplied to the power receiving equipment, and the power generated by the power generation equipment 3 is used to set the system storage battery 4 to a first predetermined capacity (for example, SOC 30 %), charging the vehicle-mounted storage battery 21 to full charge (desired charge amount) is the second priority, and charging the system storage battery 4 to full charge (SOC 100%). With this as the third priority, the vehicle-mounted storage battery 21 and the system storage battery 4 are charged. On the other hand, while the power generation equipment 3 is not generating power, the system storage battery 4 is discharged to supply power to the power receiving equipment, and the system storage battery 4 is discharged until the capacity of the system storage battery 4 reaches a second predetermined capacity (for example, SOC 20%). to charge the in-vehicle storage battery 21 with the electric power of .

As described above, according to the vehicle charging station 1 and the vehicle charging method, when the power generation equipment 3 is generating power, the power generated by the power generation equipment 3 is supplied to the power receiving equipment. Then, the system storage battery 4 is first charged to a first predetermined capacity with the power generated by the power generation equipment 3, and then the vehicle-mounted storage battery 21 connected to the charger 5 is charged to full charge. Next, the system storage battery 4 is charged to full charge. In this way, first, the capacity of the system storage battery 4 is secured up to the first predetermined capacity, and then the vehicle-mounted storage battery 21 is charged. However, it is possible to operate the vehicle charging station 1 stably.

That is, the first predetermined capacity is set to an appropriate capacity in consideration of the capacity of the power generation equipment 3 and the system storage battery 4, the power required for the power receiving equipment, the power required in an emergency (vehicle 2 requiring emergency charging), and the like. Therefore, it is possible to preferentially secure the power required for system operation. In addition, after the system storage battery 4 is charged to the first predetermined capacity (before being charged to full charge), the onboard storage battery 21 is charged to full charge, so the onboard storage battery 21 can be charged appropriately and quickly. becomes possible. In this way, the system for charging the vehicle-mounted storage battery 21 can be stably operated without using a commercial power source. Furthermore, when power is being generated by the power generation equipment 3, the power generated by the power generation equipment 3 is used to directly charge the on-vehicle storage battery 21, that is, the power stored in the system storage battery 4 is not used to charge the on-board storage battery 21. Therefore, the capacity of the system storage battery 4 can be kept low.

In addition, when the power generation equipment 3 is not generating power, the power of the system storage battery 4 is supplied to the power receiving equipment. After that, the vehicle-mounted storage battery 21 is charged with the electric power of the system storage battery 4 until the capacity of the system storage battery 4 reaches the second predetermined capacity. In this way, first, the capacity of the system storage battery 4 is secured up to the second predetermined capacity, and then the vehicle-mounted storage battery 21 is charged. However, it is possible to operate the vehicle charging station 1 stably.

That is, by setting the second predetermined capacity to an appropriate capacity in consideration of the capacity of the power generation equipment 3 and the system storage battery 4, the power required for the power receiving equipment, the power required in an emergency, etc., the power required for system operation can be reduced. Priority can be secured. In addition, since the onboard storage battery 21 is charged after the capacity of the system storage battery 4 is secured up to the second predetermined capacity, it is possible to charge as many onboard storage batteries 21 as possible. In this way, it is possible to stably operate a system that charges the vehicle-mounted storage battery 21 even when the power generation equipment 3 is not generating power, without using a commercial power source.

In addition, since the amount of electricity and the number of vehicles capable of charging the vehicle-mounted storage battery 21 are distributed to the outside, the user who is planning to charge the vehicle-mounted storage battery 21 acquires and learns the amount of electricity and the number of vehicles that can be charged, and the charging can be performed. It is possible to determine whether or not to take appropriate measures. For example, it is possible to charge toward a nearby vehicle charging station 1 that has a chargeable amount of electricity, or to charge toward a vehicle charging station 1 that can reliably charge even if it is a little far away. Moreover, based on the power generation state of the power generation equipment 3 and the current capacity of the system storage battery 4, the amount of electricity and the number of vehicles that can charge the on-board storage battery 21 are calculated, so the amount of electricity and the number of vehicles are more appropriate based on the amount of power generation and storage. can be assigned.

Furthermore, since recommended values for the power generation capacity of the power generation equipment 3 and the capacity of the system storage battery 4 that are suitable for the system operating conditions are determined, the appropriate power generation capacity and power storage capacity that are suitable for the operating conditions can be obtained efficiently and economically. It becomes possible to plan the operation. Alternatively, it is possible to improve the efficiency and economic efficiency of the newly installed vehicle charging station 1 . Moreover, since the recommended value is determined based on the actual results including the amount of power generated by the power generation equipment 3 and the amount of charge/discharge of the system storage battery 4 in the past, it is possible to determine an appropriate recommended value.

(Embodiment 2)
FIG. 5 is a schematic configuration diagram showing a car sharing station (vehicle charging system) 10 according to this embodiment. In this embodiment, a case where an arbitrary user U charges a car-sharing vehicle 2 will be described, and the same components as those in the first embodiment will be denoted by the same reference numerals, and description thereof will be omitted. Here, the forms of car sharing include a form exclusively used by a specific business operator (contractor), a form used by car sharing members including general users, and a combination of these (for example, on weekdays, specific It is assumed that it will be used by business operators and used by car sharing members on holidays).

In this embodiment, the calculation unit 76 formulates a charging plan for the vehicle-mounted storage battery 21 based on weather information and past power consumption of the vehicle 2 . That is, based on the weather information received from the weather information server (such as hours of sunshine for the next week) and the average power consumption and travel distance of the vehicle 2 per car sharing (amount of discharge of the in-vehicle storage battery 21), etc. , how the on-board battery 21 can be charged.

For example, if the weather is fine and the sunshine hours are long for the next week, the power generation equipment 3 will fully generate power. During non-power generation (nighttime), the fully charged system storage battery 4 is discharged until it reaches a second predetermined capacity, and the vehicle-mounted storage battery 21 is charged. On the premise that such charging is possible, when and how much of which vehicle 2 is actually charged according to the usage reservation status of the user U (which vehicle 2 is used from what time to what time on what day). Develop a charging plan to determine whether or not to Here, machine learning may be performed to formulate such a charging plan.

In addition, in this embodiment, the current capacity and remaining capacity of the in-vehicle storage battery 21 parked or waiting at the car sharing station 10 are distributed to the outside. That is, the current capacity of each on-vehicle storage battery 21 is sequentially measured and transmitted to the information distribution server, and the contractor or the like accesses the information distribution server so that the current capacity of each on-vehicle storage battery 21 can be obtained. .

According to such an embodiment, the charging plan for the in-vehicle storage battery 21 is formulated based on the weather information, that is, based on the power generation prediction of the power generation equipment 3 that generates power using natural energy that is affected by the weather. It is possible to formulate an appropriate charging plan according to the power generation prediction. By formulating an appropriate charging plan, the user U or the like who is planning to drive the vehicle 2 can charge and drive in a planned and appropriate manner. Moreover, based on the past power consumption of the vehicle 2, that is, based on how much electricity is required to charge the onboard storage battery 21, the charging plan for the onboard storage battery 21 is formulated. It becomes possible to formulate an appropriate charging plan.

Here, in this embodiment, the charging plan is formulated according to the usage reservation status of the user U, but the usage reservation from the user U may be received according to the charging plan. That is, as described above, it is also possible to formulate a charging plan based on the chargeable amount of electricity and date and time, and to receive reservations for use within the range of this charging plan.

In addition, since the current capacity of the in-vehicle storage battery 21 is delivered to the outside, for example, a user who is planning to drive the vehicle 2 can determine how long the vehicle 2 can travel and does not perform route charging (additional charging during movement). It becomes possible to determine whether or not it is possible to use it even without it, which increases convenience.

Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment. Included in the invention. For example, in the above embodiment, the management device 7 is separate from the power generation equipment 3, the station storage battery 4, etc., but the management device 7 may be configured integrally with the power generation equipment 3, the station storage battery 4, etc. However, the management device 7 may be composed of a plurality of devices. In addition, the management device 7 may be installed in a place different from the power generation equipment 3, the station storage battery 4, and the charger 5, or a single management device 7 may control and manage a plurality of power generation equipment 3, the station storage battery 4, and the like. can be

In addition, although the case of formulating a charging plan has been described in the second embodiment, the charging plan is also formulated in the first embodiment, the formulated charging plan is transmitted to the information distribution server, and charging of the in-vehicle storage battery 21 is scheduled. You may enable the user etc. who are doing to acquire and know a charging plan. Furthermore, in Embodiment 2, a case has been described where the management device 7 configures the formulating means, but the cloud server 8 or the like may configure the formulating means.

Furthermore, in the above embodiment, the case where the mobile body is the vehicle 2 has been described, but any mobile body equipped with an on-board storage battery may be used. body), a ship, a self-propelled robot, or the like.

1 Vehicle charging station (mobile charging system)
10 Car sharing station (mobile charging system)
2 Vehicle (moving body)
21 on-board storage battery (mounted storage battery)
3 Power generation equipment 4 Station storage battery (system storage battery)
5 Charger 61 Lighting equipment (power receiving equipment)
7 Management device (power receiving equipment, formulating means)
8 Cloud server (management server)

Claims

A power generation facility that generates power using natural energy including sunlight,
a system storage battery for storing electric power generated by the power generation equipment;
a charger for charging an on-board storage battery mounted on a mobile object;
a power receiving facility including a management device;
When power is being generated by the power generation equipment, the management device supplies the power generated by the power generation equipment to the power receiving equipment, and fully charges the system storage battery with the power generated by the power generation equipment. The first priority is to charge the on-board battery connected to the charger to a first predetermined capacity lower than charging to full charge is the third priority;
A mobile charging system characterized by:
When the power generation equipment is not generating power, the management device supplies the power of the system storage battery to the power receiving equipment, and until the capacity of the system storage battery reaches a second predetermined capacity larger than zero, charging the on-board battery connected to the charger with power from the system battery;
The mobile charging system according to claim 1, characterized in that:
The management device calculates an amount of electricity that can be charged to the on-board storage battery based on the power generation state of the power generation equipment and the current capacity of the system storage battery, and determines at least one of the chargeable amount of electricity and the current capacity of the on-board storage battery. externally distribute the
The mobile charging system according to claim 1 or 2, characterized in that:
Formulation means for formulating a charging plan for the on-board storage battery based on weather information;
The mobile charging system according to any one of claims 1 to 3, characterized in that:
5. The mobile charging system according to claim 4, wherein said formulating means formulates a charging plan for said on-board storage battery based on past power consumption of said mobile.
A recommended value for at least one of the power generation capacity of the power generation equipment and the capacity of the system storage battery that conforms to the system operation status based on the system operation status including the past power generation amount of the power generation equipment and the charge/discharge amount of the system storage battery. comprising a management server that determines the
The mobile charging system according to any one of claims 1 to 5, characterized in that:
A power generation facility that generates power using natural energy including sunlight,
a system storage battery for storing electric power generated by the power generation equipment;
a charger for charging an on-board storage battery mounted on a mobile object;
a power receiving facility including a management device;
When power is being generated by the power generation equipment, the power generated by the power generation equipment is supplied to the power receiving equipment, and the system storage battery is charged with the power generated by the power generation equipment. The first priority is to charge the on-board storage battery connected to the charger to a predetermined capacity, the second priority is to charge the on-board storage battery connected to the charger to full charge, and the system storage battery is charged to full charge. as a third priority,
A moving body charging method characterized by:
When the power generation equipment is not generating power, the power of the system storage battery is supplied to the power receiving equipment, and the power of the system storage battery is supplied until the capacity of the system storage battery reaches a second predetermined capacity larger than zero. charging the on-board battery connected to the charger with
8. The mobile charging method according to claim 7, characterized in that: