Parking area power plant using mobile body

Abstract

To fabricate a power plant using, as a power supply source, a mobile body in which a fuel battery using hydrogen or a hydrogen compound as a fuel is installed, whereby supply a stably large amount of power at a low cost.SOLUTION: A plurality of mobile bodies is gathered in a parking area during a time period in which the mobile bodies are not used for the original purpose, and power generated by the mobile bodies is collected to a connection facility and supplied to a power transmission grid. Power generated by the mobile bodies is collection of power of mobile bodies directly connected to the connection facility and power of mobile bodies indirectly connected via the mobile bodies. In the power generation, the amount of power generation after power generation of the mobile bodies at a main power plant is assigned in consideration of a fuel use plan, and a safe circuit is disposed on a connection device of a mobile body.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a mobile body and equipment that configures a power plant using a mobile body equipped with a fuel cell. [Background technology]

[0002] In general, it is important for renewable energy power plants that use solar and wind power to provide a stable supply of electricity. As solar power plants stop generating electricity at night, it is highly added value to cover the reduced electricity generated during the day with electricity obtained from other renewable energy sources.

[0003] Currently, fuel cells using hydrogen or hydrogen compounds produced using renewable energy as fuel are being considered for generating electricity. One example is a power generation facility using fuel cells that uses the fuel as an uninterruptible power supply for emergency power generation.

[0004] Another example of a vehicle that can regularly use the fuel is a service provider vehicle equipped with a fuel cell. The service provider vehicle is equipped with a power supply terminal. Among fuel cell-equipped vehicles, some fuel cell buses are also equipped with a large-capacity external power supply system.

[0005] However, uninterruptible power supplies that use the fuel and power generation by the mobile bodies are used as independent power sources and are not suitable for power plants that supply large amounts of electricity for long periods of time. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent Publication No. 2023-56874 [Non-patent literature]

[0007] [Non-Patent Document 1] Microsoft: Hydrogen fuel cells could provide carbon-free backup power at data centers, Microsoft homepage https: / / news.microsoft.com / ja-jp / features / 220825-hydrogen-fuel-cells-could-provide-emission-free-backup-power-at-datacenters-microsoft-says / , (2024-2-16) [Non-patent document 2] Toyota Motor Corporation: Examples of the use of fuel cell vehicles (FCVs) in times of disaster, Ministry of Economy, Trade and Industry website, https: / / www.meti.go.jp / shingikai / energy_environment / suiso_nenryo_denchi_fukyu / pdf / 006_05_00.pdf, (2024-2-16) Summary of the Invention [Problem to be solved by the invention]

[0008] As mentioned above, it is important for the renewable energy power plants to provide a stable supply of electricity, especially a large amount of electricity obtained from renewable energy to supplement the portion of the electricity lost by the solar power plants at night. In addition, since fuel cells and fuel are expensive, vehicles equipped with fuel cells that use hydrogen or hydrogen compounds do not have the function of a power plant that can supply large amounts of electricity for a long period of time.

[0009] The present invention aims to provide a stable and inexpensive supply of large amounts of electricity by producing a power plant that uses a mobile vehicle equipped with a fuel cell that uses hydrogen or a hydrogen compound as fuel as its power source. [Means for solving the problem]

[0010] To solve the above problem, the power plant of the present invention gathers multiple mobile objects in a parking lot during times when they are not being used for their original purpose, and the electricity generated by the mobile objects is collected in a connection facility and supplied to the power grid. The mobile objects are either structured so that they can be directly connected to the connection facility to supply electricity, or structured so that electricity can be supplied via a mobile object that can supply electricity to the connection facility, or has a combination of the first two structures.

[0011] When generating electricity for the mobile units, the amount of electricity generated will be allocated to each mobile unit taking into consideration the fuel usage plan after power generation at this power plant has ended, and safety circuits will be installed in the connection devices of the mobile units to prevent electrical accidents, thereby managing the supply of electricity in a stable manner. [Effects of the Invention]

[0012] This invention eliminates the need for a dedicated fuel cell for the power plant because the parked vehicles are used to generate electricity, and the generated electricity is supplied via vehicles that can supply power to the connection equipment, thereby reducing the construction costs of the power plant. Furthermore, since power is generated using multiple vehicles equipped with safety circuits, a large amount of electricity can be supplied stably. [Brief explanation of the drawings]

[0013] [Figure 1] This shows the equipment of a mobile power plant and the routes of power and information. [Figure 2] This shows the device configuration and information path of the mobile unit and management equipment. [Figure 3] This shows the power supply path inside the vehicle. [Figure 4] This shows an example of the layout of mobile units within a mobile power plant and the relationship with the power transmission system. DETAILED DESCRIPTION OF THE INVENTION

[0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the accompanying drawings. As shown in Figure 1, the power plant of the present invention comprises a mobile object a equipped with a fuel cell parked in a parking lot f, a management facility b, and a connection facility c. The management facility b exchanges information related to power generation with the mobile object a and the connection facility c via communication 110. The power generated by the mobile object is transmitted via electrical wiring 100 to an in-plant system d, which is the electrical wiring within the power plant, and to a power transmission system e, which is the electrical wiring outside the power plant, via the connection facility c.

[0015] The mobile unit a and the connection equipment b are equipped with the devices shown in Figure 2. The mobile unit a is equipped with a mobile communication device 31 that sends and receives information related to power generation, a power generation device 32 consisting of a fuel cell, a fuel storage container, a power generation regulator, and a storage battery, and a connection device 33 that sends and receives the power generated by the power generation device to and from the outside. As shown in Figure 3, the connection device 33 is equipped with a safety circuit 34 and a connection port 35. Although two connection ports 35 are shown in Figure 3, any number of connection ports 35 may be used as long as they are one or more.

[0016] The management facility b is equipped with a management facility communication device 21 that sends and receives information related to the power generation of the mobile unit a, a power generation planning device 22 that plans power generation based on the power generation capacity of the mobile unit a, and a command and monitoring device 23 that commands the power generation of the mobile unit a and monitors the amount of power generated by the mobile unit a.

[0017] The power generation planning device 22 obtains information relating to the amount of fuel that can be consumed by the mobile object a from the time it enters the parking lot f until it leaves the parking lot f from the mobile object communication device 31 of the mobile object a via the management facility communication device 21. The power generation planning device 22 determines the power generation capacity of the mobile object a as a power generation plan based on the performance of the fuel cell mounted on the mobile object a, the information relating to the amount of fuel, the power generation output, and the power generation time.

[0018] The power plant manager 200 can change the power generation capacity of the mobile unit a determined by the power generation planning device 22 based on information from the mobile unit user 210 obtained through communication 110. Furthermore, if the power generation planning device 22 is unable to determine the power generation capacity of the mobile unit a due to a lack of information from the mobile unit a, the power plant manager 200 can determine the power generation capacity of the mobile unit a by providing the necessary information to the power generation planning device 22 through communication 110 based on the information from the mobile unit user 210 obtained through communication 110.

[0019] The command and monitoring device 23 transmits the power generation plan determined by the power generation planning device 22 as information related to the power generation to the power generation device 32 of the mobile unit a via the management facility communication device 21 and the mobile unit communication device 31. The power generation device 32 generates power based on the information, and transmits the status of the current, voltage and fuel consumption during power generation as information related to the power generation to the command and monitoring device 23 via the mobile unit communication device 31 and the management facility communication device 21. The power generation planning device 22 and the command and monitoring device 23 have the ability to handle the above content for each of the multiple mobile units a.

[0020] The command and monitoring device 23 may have the function of issuing a command to charge the storage battery with power via the connection device 33 and connection equipment b, rather than using the power of the fuel cell installed in the mobile body a, when there is a change in the power generation capacity of the mobile body a determined by the power generation planning device 22, or when the charge level of the storage battery of the power generation device 32 is insufficient due to information from the mobile body user 210.

[0021] If the mobile unit a has two or more connection ports 35, one can be used to supply power to the outside of the mobile unit a, and one or more can be used to receive power from the outside of the mobile unit a.

[0022] Figure 4 illustrates the case where multiple mobile units a, each with two connection ports 35 as shown in Figure 3, are connected and used, and the mobile units are identified by adding a numerical suffix to the symbol a representing the mobile unit. Figure 4 shows that four mobile units a1 to a4 and four mobile units a5 to a8 are connected to each other via connection ports 35, and the generated electricity is supplied via one of the connection ports 35 of each of mobile units a1 and a5 and one connector 41 of connection equipment c.

[0023] 4 illustrates an example in which connection facility c has one connector, but connection facility c may have any number of connectors 41. The power capacity of connector 41 limits the total amount of power generated by the mobile objects connected to connector 41, and the total capacity of connectors 41 provided in connection facility c determines the upper limit of the power generation output of power plant g.

[0024] In this way, by providing two or more connection ports for the mobile body, a greater number of mobile bodies a than the number of connectors 41 of the connection facility c can be connected via the connection ports 35, and the total amount of electricity generated by the mobile bodies a can be supplied to the connection facility c, so fewer connectors 41 need to be installed than when connectors 41 are connected one-to-one to the mobile bodies a. This allows the area of ​​the power plant g to be reduced, and the total length of the electrical wiring 100 to be shortened.

[0025] The safety circuit 34 of the mobile unit a is equipped with at least one of a power circuit breaker, a resistance meter, a voltage meter, and a connection port 35 current indicator, and is a safety circuit for preventing short-circuiting of the electric circuit, leakage of electricity, or electric shock when its own connection port 35 is connected to the connector 41 or the connection port 35 of another mobile unit. The mobile unit a's own safety circuit 34 has the function of keeping the electric circuit open before connection even if its own connection port 35 is short-circuited, and closing the open electric circuit after connection.

[0026] In this way, by providing the safety circuit 34, it is possible to safely add or remove mobile objects to or from the connected equipment even while the power plant is in operation, thereby enabling a stable supply of power from the power plant g. [Explanation of symbols]

[0027] a. Mobile object b Management equipment c. Connection equipment d Internal system e. Transmission system f Parking g Power Plant 21 Management equipment communication equipment 22 Power generation planning device 23 Command and monitoring equipment 31 Mobile communication devices 32 Power generating equipment 33 Connection Device 34 Safety circuit 35 Connection port 41 Connector 100 Electrical Wiring 110 Communications 200 Power Plant Manager 210 Mobile user

Claims

1. A power plant in which multiple mobile vehicles equipped with fuel cells and communication devices for sending and receiving information related to the power generation of the fuel cells generate electricity in response to commands from outside the mobile vehicles while parked, and supply the electricity to a power transmission system via connection equipment for receiving and sending power from the mobile vehicles.

2. The power plant, A power plant that uses management facilities equipped with a communication device that sends and receives information related to the power generation of the mobile body, a power generation planning device that creates a power generation plan based on the power generation capacity of the mobile body, and a command and monitoring device that commands the power generation of the mobile body and monitors the power generation status.

3. The power plant according to claim 1 or claim 2, A power plant using a connection facility having a connector for supplying and receiving power to and from the mobile object, and a mobile object having a connection port for supplying and receiving power to and from the connection facility.

4. A moving body according to any one of claims 1 to 3, A mobile body having two or more connection ports for receiving and sending electric power, at least one of which has the function of receiving and sending electric power to and from a connection port of another mobile body.

5. A moving body according to any one of claims 1 to 4, A mobile body that is equipped with a safety circuit to prevent electrical accidents when connecting to the connector or the connection port of another mobile body.

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