JPWO2019187154A1 - Energy generator, control method, and program - Google Patents

Abstract

A reforming unit that decomposes raw material gas containing hydrogen and carbon using electric power to generate hydrogen and carbon dioxide, a hydrogen storage unit that stores hydrogen, and a hydrogen and hydrogen storage unit generated by the reforming unit. A power generation unit that uses at least one of the stored hydrogen to generate electricity, a first pipe that transfers the hydrogen generated by the reforming unit to the power generation unit, and a hydrogen storage unit that uses the hydrogen generated by the reforming unit. It is provided with a second pipe for transferring to the hydrogen, and a transfer limiting unit for restricting the transfer of hydrogen in at least one of the first pipe and the second pipe.

Description

The present invention relates to energy generators, control methods, and programs.

A technique for generating hydrogen with electric power generated by utilizing renewable energy is known (see, for example, Patent Documents 1 to 5). Patent Document 6 discloses that CEMS is realized by extending hydrogen supply pipes in the city. Patent Document 7 discloses that a boiler, a microturbine, or the like may be combined with a system capable of producing hydrogen and generating electricity at the same time.
[Prior art literature]
[Patent Document]
[Patent Document 1] Patent No. 6030158 [Patent Document 2] Japanese Patent Application Laid-Open No. 2017-76611 [Patent Document 3] Japanese Patent Application Laid-Open No. 4775790 [Patent Document 4] Japanese Patent Application Laid-Open No. 2003-257443 [Patent Document 5] Patent No. 4328069 [Patent Document 5] Patent Document 6] Japanese Patent Application Laid-Open No. 2007-265732 [Patent Document 7] Japanese Patent Application Laid-Open No. 2007-523443

The problem to be solved

When constructing a trigeneration system using hydrogen to supply carbon dioxide, heat and electricity, it is difficult to match the timing of supplying carbon dioxide with the timing of supplying electricity.

General disclosure

In the first aspect of the present invention, an energy generator is provided. The above energy generator includes, for example, a reforming unit that decomposes a raw material gas containing hydrogen and carbon by using electric power to generate hydrogen and carbon dioxide. The above energy generator includes, for example, a hydrogen storage unit for storing hydrogen. The above energy generator includes, for example, a power generation unit that generates electric power by using at least one of hydrogen generated by the reforming unit and hydrogen stored in the hydrogen storage unit. The above energy generator includes, for example, a first pipe for transferring hydrogen generated by the reforming unit to the power generation unit. The above energy generator includes, for example, a second pipe for transferring the hydrogen generated by the reforming unit to the hydrogen storage unit. The energy generator described above includes, for example, a transfer limiting unit that limits the transfer of hydrogen in at least one of the first pipe and the second pipe.

The above energy generator may include a supply request acquisition unit that acquires a supply request that requests the supply of carbon dioxide. The above-mentioned energy generator may include an energy generator or a power supply / demand acquisition unit that acquires power supply / demand information indicating a power supply / demand status in a power network capable of transmitting / receiving power to / from the energy generator. The above energy generator may include a hydrogen supply / demand acquisition unit that acquires hydrogen supply / demand information indicating the hydrogen supply / demand status of the energy generator. The above energy generator determines whether or not to meet the supply request based on (i) the power supply and demand situation indicated by the power supply and demand information and (ii) the hydrogen supply and demand situation indicated by the hydrogen supply and demand information. A response determination unit may be provided.

In the above energy generator, the response determination unit responds to (i) the power supply and demand status indicated by the power supply and demand information, (ii) the hydrogen supply and demand status indicated by the hydrogen supply and demand information, and (iii) the supply request. It may be determined whether or not to meet the supply request based on the amount of hydrogen generated by the reforming unit. In the above energy generator, the response determination unit satisfies the predetermined hydrogen excess condition indicated by the hydrogen supply and demand information, and the excess power supply indicated by the power supply and demand information is predetermined. If the specified power excess condition is satisfied, it may be decided not to comply with the supply request.

The above energy generator may include a power generation control unit that determines whether or not to operate the power generation unit. In the above energy generator, if the excess hydrogen supply indicated by the hydrogen supply and demand information does not satisfy the hydrogen excess condition, and the excess power supply indicated by the power supply and demand information satisfies the power excess condition, the response is made. The decision-making unit may decide to comply with the supply request. In the above energy generator, when the excess hydrogen supply indicated by the hydrogen supply and demand information does not satisfy the hydrogen excess condition and the excess power supply indicated by the power supply and demand information satisfies the power excess condition, power generation is performed. The control unit may decide not to operate the power generation unit. The above energy generator is capable of hydrogen when the excess hydrogen supply indicated by the hydrogen supply and demand information satisfies the hydrogen excess condition and the excess power supply indicated by the power supply and demand information satisfies the power excess condition. It may be provided with a dispatch request transmission unit that transmits a dispatch request requesting the dispatch of the mobile body to the provider of the service for dispatching the mobile body equipped with the storage container or the storage battery.

The above energy generator is arranged in a part of a pipe for transferring at least a part of carbon dioxide generated by the reforming part to a field where plants or agricultural products are cultivated, and the carbon dioxide is transferred to the field. A flow rate control unit for adjusting the flow rate of the above may be provided. In the above energy generator, the flow rate control unit may have a pipe for releasing at least a part of carbon dioxide generated by the reforming unit into the atmosphere. In the above energy generator, the reforming unit may use electric power to decompose the raw material gas to generate hydrogen, carbon dioxide, and heat. In the above energy generator, the power generation unit may generate electric power and heat by utilizing at least one of the hydrogen generated by the reforming unit and the hydrogen stored in the hydrogen storage unit. The above energy generator may include a heat storage unit that stores heat generated by at least one of a reforming unit and a power generation unit.

In the second aspect of the present invention, a control method is provided. The above control method is, for example, a method for controlling an energy generator. In the above control method, the energy generator includes, for example, a reforming unit that decomposes a raw material gas containing hydrogen and carbon by using electric power to generate hydrogen and carbon dioxide. In the above control method, the energy generator includes, for example, a hydrogen storage unit for storing hydrogen. In the above control method, the energy generator includes, for example, a power generation unit that generates electric power by using at least one of hydrogen generated by the reforming unit and hydrogen stored in the hydrogen storage unit.

The above control method has, for example, a supply request acquisition step of acquiring a supply request requesting the supply of carbon dioxide. The above control method includes, for example, an energy supply / supply acquisition stage for acquiring power supply / demand information indicating the power supply / demand status of an energy generator or a power grid capable of transmitting and receiving power, and the above control method includes, for example, an energy generator. It has a hydrogen supply and demand acquisition stage to acquire hydrogen supply and demand information indicating the supply and demand status of hydrogen in. The above control method determines whether or not to meet the supply request based on, for example, (i) the power supply and demand status indicated by the power supply and demand information, and (ii) the hydrogen supply and demand status indicated by the hydrogen supply and demand information. Has a response determination stage.

In the above control method, in the response determination stage, the excess hydrogen supply condition indicated by the hydrogen supply and demand information satisfies the predetermined hydrogen excess condition, and the excess power supply condition indicated by the power supply and demand information is predetermined. It may have a step of deciding not to meet the supply request if the given overpower condition is satisfied. The above control method supplies when the excess hydrogen supply indicated by the hydrogen supply and demand information does not satisfy the hydrogen excess condition and the excess power supply indicated by the power supply and demand information satisfies the power excess condition. It may have a stage of deciding to comply with the request and deciding not to operate the power generation unit. The above control method is used when the excess hydrogen supply indicated by the hydrogen supply and demand information satisfies the hydrogen excess condition and the excess power supply indicated by the power supply and demand information satisfies the power excess condition. It may have a dispatch request transmission stage of transmitting a dispatch request requesting the dispatch of the mobile body to the provider of the service for dispatching the mobile body equipped with the container or the storage battery.

In a third aspect of the invention, a program is provided. A non-transitory computer-readable medium containing the above program may be provided. The above program is, for example, a program for causing a computer to execute a control method for controlling an energy generator. The above program may be a program for causing a computer to execute the control method according to the second aspect.

The outline of the above invention does not list all the necessary features of the present invention. Sub-combinations of these feature groups can also be inventions.

An example of the system configuration of the energy management system 100 is shown schematically. An example of the system configuration of the agricultural facility 122 is shown schematically. An example of the internal configuration of the controller 240 is shown schematically. An example of the internal configuration of the flow rate control unit 272 is schematically shown. An example of the system configuration of the energy management facility 124 is schematically shown. An example of the internal configuration of the energy management unit 132 is schematically shown. An example of information processing in the settlement unit 632 is shown schematically. An example of the internal configuration of the vehicle allocation management unit 134 is schematically shown. An example of the data table 900 is shown schematically.

Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. Also, not all combinations of features described in the embodiments are essential to the means of solving the invention. In the drawings, the same or similar parts may be given the same reference number to omit duplicate explanations.

[Overview of Energy Management System 100]
FIG. 1 schematically shows an example of the system configuration of the energy management system 100. In the present embodiment, the energy management system 100 includes, for example, one or more agricultural facilities 122 (sometimes referred to as one or more), one or more energy management facilities 124, and one or more supply and demand facilities 126. And a management server 130. In the present embodiment, the management server 130 has, for example, an energy management unit 132 and a vehicle allocation management unit 134.
The energy management system 100 may be an example of an energy management device and a hydrogen utilization system. The agricultural facility 122 may be an example of an energy generator. The energy management facility 124 may be an example of an energy generator. The supply and demand facility 126 may be an example of an energy generator. The management server 130 may be an example of an energy management device. The energy management unit 132 may be an example of an energy management device.

In the present embodiment, each of the agricultural facility 122, the energy management facility 124, and the supply and demand facility 126 is electrically connected to the power grid 12. Each of the agricultural facility 122, the energy management facility 124, and the supply and demand facility 126 can transmit and receive electric power to and from the electric power network 12. In the present embodiment, each part of the energy management system 100 is via the communication network 14. Information can be sent and received to each other.

In this embodiment, the power grid 12 is electrically connected to a commercial power source (not shown). The power grid 12 may be an electric power system provided by an electric power company or a power transmission company. The power grid 12 may include a power system of a plurality of power companies or a plurality of transmission companies. The power system may be a system in which power generation, substation, power transmission, and distribution are integrated.

Here, "element A and element B are electrically connected" is not limited to the case where element A and element B are physically connected. For example, the input and output windings of a transformer are not physically connected, but are electrically connected. Further, a member for electrically connecting the element A and the element B may be interposed between the element A and the element B. Examples of the above-mentioned member include a conductor, a switch or a switch, a transformer, and the like.

In the present embodiment, the communication network 14 may be a wired communication transmission line, a wireless communication transmission line, or a combination of a wireless communication transmission line and a wired communication transmission line. .. The communication network 14 may include a wireless packet communication network, the Internet, a P2P network, a dedicated line, a VPN, a power line communication line, and the like. The communication network 14 may include (i) a mobile communication network such as a mobile phone line network, (ii) wireless MAN (for example, WiMAX®), wireless LAN (for example, WiFi®). ), Bluetooth®, Zigbee®, NFC (Near Field Communication) and other wireless communication networks may be included.

In this embodiment, each part of the energy management system 100 may send and receive information to and from at least one of one or more fuel cell vehicles 22 and one or more electric vehicles 24 via a communication network 14. In the present embodiment, each part of the energy management system 100 may send and receive information to and from at least one of one or more communication terminals 32 via the communication network 14.

In this embodiment, at least one of the agricultural facility 122 and the energy management facility 124 may send and receive hydrogen to and from the fuel cell vehicle 22. For example, at least one of the agricultural facility 122 and the energy management facility 124 transfers at least one of the hydrogen produced by the facility and the hydrogen stored in the facility to the hydrogen storage container of the fuel cell vehicle 22. At least one of the agricultural facility 122 and the energy management facility 124 may receive hydrogen from the hydrogen storage container of the fuel cell vehicle 22.

In this embodiment, at least one of the agricultural facility 122 and the energy management facility 124 may transmit and receive electric power to and from the electric vehicle 24. For example, at least one of the agricultural facility 122 and the energy management facility 124 charges the storage battery of the electric vehicle 24 with the electric power generated by the facility. At least one of the agricultural facility 122 and the energy management facility 124 may receive power from the storage battery of the electric vehicle 24.

The fuel cell vehicle 22 and the electric vehicle 24 are the property of the provider of the service for dispatching the hydrogen storage container or the moving body equipped with the storage battery (may be referred to as the manager of the fuel cell vehicle 22 or the electric vehicle 24) or. It may be an occupancy. For example, the fuel cell vehicle 22 and the electric vehicle 24 may be the property or possession of a business operator that provides a rental car service.

The electric vehicle 24 may be an example of a mobile body on which a storage battery can be mounted. The fuel cell vehicle 22 may be an example of a mobile body on which a fuel cell can be mounted. The fuel cell vehicle 22 may be an example of a mobile body on which a hydrogen storage container can be mounted.

The hydrogen storage container mounted on the fuel cell vehicle 22 may be an example of a portable hydrogen storage container. Portable hydrogen storage containers are transported by animals or mobiles. The portable hydrogen storage container may be mounted or carried on an animal, mounted on a moving body, or towed by the moving body. The storage battery mounted on the electric vehicle 24 may be an example of a portable power storage device. The portable power storage device is carried by an animal or a moving body. The portable power storage device may be attached to or carried by an animal, may be mounted on a moving body, or may be towed by the moving body.

The moving body may be a device traveling on land, a device flying in the air, or a device navigating underwater or on water. The moving body may be moved by the operation of the user, or may be moved by an autonomous movement function (sometimes referred to as auto cruise, cruise control, etc.) by a computer mounted on the moving body. Examples of the moving body include a vehicle, a ship, and a flying body. Examples of vehicles include automobiles, motorcycles, and trains.

Examples of automobiles include engine vehicles, electric vehicles, fuel cell vehicles, hybrid vehicles, and work machines. Motorcycles include (i) motorcycles, (ii) three-wheeled motorcycles, (iii) Segways (registered trademarks), kickboards with power units (registered trademarks), and skateboards with power units. An example is a two-wheeled vehicle. Examples of ships include ships, hovercraft, personal watercraft, submarines, submarines, and underwater scooter. Examples of the flying object include an airplane, an airship or a balloon, a balloon, a helicopter, and a drone.

In the present embodiment, the communication terminal 32 is a communication terminal used by the user of the energy management system 100, and the details thereof are not particularly limited. Examples of the communication terminal 32 include a personal computer and a mobile terminal. Examples of mobile terminals include mobile phones, smartphones, PDAs, tablets, notebook computers or laptop computers, wearable computers and the like. The communication terminal 32 may be used as a user interface of the energy management system 100.

In the present embodiment, the energy management system 100 manages the supply and demand of energy in the agricultural facility 122, the energy management facility 124, and the supply and demand facility 126. The energy management system 100 may manage the supply and demand of energy sources in the agricultural facility 122, the energy management facility 124, and the supply and demand facility 126. Examples of energy include electricity and heat. Examples of the energy source include hydrogen, city gas, propane gas, alcohol, petroleum, kerosene, and gasoline.

In the present embodiment, the agricultural facility 122 receives electric power from the electric power grid 12 (sometimes referred to as receiving electric power, purchasing electric power, or the like). The agricultural facility 122 may supply electric power to the electric power grid 12 (sometimes referred to as power transmission, power sale, etc.). The agricultural facility 122 is provided with, for example, at least one of a device that consumes electric power, a device that supplies electric power, a device that consumes hydrogen, and a device that supplies hydrogen.

In the present embodiment, the agricultural facility 122 includes a field in which a plant or an agricultural product is cultivated. In the agricultural facility 122, for example, the heat generated during the generation of electric power and hydrogen is supplied to the field. Water or steam generated during the generation of electricity and hydrogen may be supplied to the field. The carbon dioxide generated when hydrogen is generated may be supplied to the field. The agricultural facility 122 may be a facility provided with a field among the supply and demand facilities 126. Details of the agricultural facility 122 will be described later.

In the present embodiment, the energy management facility 124 manages the amount of energy supplied. This maintains a balance between energy supply and demand. The energy management facility 124 may manage the supply amount of the energy source. This maintains a balance between supply and demand for energy sources. For example, a power generation facility, a power storage facility, a hydrogen production facility, and the like are arranged in the energy management facility 124. Details of the energy management facility 124 will be described later.

In the present embodiment, the supply and demand facility 126 receives electric power from the electric power grid 12. The supply and demand facility 126 may supply power to the power grid 12. At least one of a device that consumes electric power and a device that supplies electric power is arranged in the supply and demand house facility 126, for example. At least one of a device that consumes hydrogen and a device that supplies hydrogen may be arranged in the supply and demand facility 126. The supply and demand facility 126 may have the same configuration as the agricultural facility 122, except that it does not have a field.

In the present embodiment, the energy management unit 132 of the management server 130 manages the supply and demand of energy in the agricultural facility 122, the energy management facility 124, and the supply and demand facility 126. The management server 130 may manage the supply and demand of energy sources in the agricultural facility 122, the energy management facility 124, and the supply and demand facility 126. Details of the energy management unit 132 will be described later.

In the present embodiment, the vehicle allocation management unit 134 of the management server 130 manages one or more fuel cell vehicles 22 and one or more electric vehicles 24. The vehicle allocation management unit 134 may adjust the supply and demand of energy or an energy source by dispatching the fuel cell vehicle 22 or the electric vehicle 24 to at least one of the energy management facility 124 and the supply and demand facility 126. Details of the vehicle allocation management unit 134 will be described later.

For example, the fuel cell vehicle 22 can carry hydrogen between at least two of the agricultural facility 122, the energy management facility 124, and the supply and demand facility 126. The electric vehicle 24 can carry electricity between at least two of the agricultural facility 122, the energy management facility 124 and the supply and demand facility 126.

The fuel cell vehicle 22 may supply hydrogen to at least one of the agricultural facility 122, the energy management facility 124, and the supply and demand facility 126. The fuel cell vehicle 22 may receive hydrogen from at least one of the agricultural facility 122, the energy management facility 124 and the supply and demand facility 126. The fuel cell vehicle 22 and the electric vehicle 24 may supply electric power to at least one of the agricultural facility 122, the energy management facility 124, and the supply and demand facility 126. The electric vehicle 24 may receive power from at least one of the agricultural facility 122, the energy management facility 124 and the supply and demand facility 126.

[Specific configuration of each part of the energy management system 100]
Each part of the energy management system 100 may be realized by hardware, may be realized by software, or may be realized by hardware and software. At least a part of each part of the energy management system 100 may be realized by a single server or may be realized by a plurality of servers. At least a part of each part of the energy management system 100 may be realized on a virtual machine or a cloud system.

At least a part of each part of the energy management system 100 may be realized by a personal computer or a mobile terminal. Examples of mobile terminals include mobile phones, smartphones, PDAs, tablets, notebook computers or laptop computers, wearable computers and the like. Each part of the energy management system 100 may store information by using a distributed ledger technology such as a blockchain or a distributed network.

When at least a part of the components constituting the energy management system 100 is realized by software, the components realized by the software define the operation related to the components in an information processing device having a general configuration. It may be realized by starting the program. The above information processing devices include, for example, (i) a data processing device having a processor such as a CPU and GPU, a ROM, a RAM, and a communication interface, and (ii) a keyboard, a touch panel, a camera, a microphone, various sensors, and a GPS receiver. It is provided with an input device such as (iii), an output device such as a display device, a speaker, and a vibration device, and a storage device (including an external storage device) such as (iv) memory and HDD.

In the above information processing device, the above data processing device or storage device may store a program. The above program may be stored on a non-temporary computer-readable recording medium. The above program is executed by the processor to cause the above information processing apparatus to execute the operation specified by the program.

The program may be stored on a computer-readable medium such as a CD-ROM, DVD-ROM, memory, or hard disk, or may be stored on a storage device connected to a network. The program may be installed from a computer-readable medium or a storage device connected to a network to the computers that make up at least part of the energy management system 100. By executing the program, the computer may function as at least a part of each part of the energy management system 100.

A program that causes a computer to function as at least a part of each part of the energy management system 100 may include a module that defines the operation of each part of the energy management system 100. These programs or modules work on a data processing device, an input device, an output device, a storage device, etc. to make the computer function as each part of the energy management system 100, or to make the computer perform an information processing method in each part of the energy management system 100. Let it run. The information processing described in the program functions as a concrete means in which the software related to the program and various hardware resources of the energy management system 100 cooperate with each other when the program is read into the computer. .. Then, the above-mentioned specific means realizes the calculation or processing of information according to the purpose of use of the computer in the present embodiment, thereby constructing the energy management system 100 according to the purpose of use.

The above program may be a program for causing a computer to execute various information processing methods on the management server 130. In one embodiment, the information processing method in the management server 130 includes, for example, a first supply and demand information indicating the power supply and demand and hydrogen supply and demand in a hydrogen generation system that generates hydrogen by using electric power, and a first supply and demand information acquisition stage to be acquired. Have. The above-mentioned information processing method has, for example, a second supply and demand information indicating power supply and demand and hydrogen supply and demand in each of one or a plurality of trigeneration systems, and a second supply and demand information acquisition stage to be acquired. The above information processing method is, for example, based on the first supply and demand information and the second supply and demand situation, (i) an upper limit of the amount of electric energy that the hydrogen generation system can receive from the power grid in a specific period, (ii). The target value of the amount of hydrogen generated by the hydrogen generation system in a specific period, (iii) the upper limit of the amount of electric energy that each of one or more trigeneration systems can transmit to the power grid in a specific period, and (Iv) It has a supply and demand management stage that determines at least one of the target values of the amount of electric energy generated by each of the one or more trigeneration systems in a specific period.

In another embodiment, the information processing method in the management server 130 may be a control method for controlling the energy generator. In the above control method, the energy generator includes, for example, a reforming unit that decomposes a raw material gas containing hydrogen and carbon to generate hydrogen and carbon dioxide by using electric power, and a hydrogen storage unit that stores hydrogen. It includes a power generation unit that generates electric power by using at least one of hydrogen generated by the reforming unit and hydrogen stored in the hydrogen storage unit.

The above control method has, for example, a supply request acquisition step of acquiring a supply request requesting the supply of carbon dioxide. The above-mentioned control method has, for example, a power supply / demand acquisition stage of acquiring power supply / demand information indicating the power supply / demand status of the energy generator or the power grid capable of transmitting / receiving power to / from the energy generator. The above control method has, for example, a hydrogen supply / demand acquisition stage for acquiring hydrogen supply / demand information indicating a hydrogen supply / demand status in the energy generator. The above control method determines whether or not to meet the supply request based on, for example, (i) the power supply and demand status indicated by the power supply and demand information, and (ii) the hydrogen supply and demand status indicated by the hydrogen supply and demand information. Has a response determination stage.

FIG. 2 schematically shows an example of the system configuration of the agricultural facility 122. In the present embodiment, the agricultural facility 122 includes, for example, a field 210, a power load 220, a power distribution facility 230, a controller 240, and a trigeneration system 250. In the present embodiment, for example, a temperature sensor 212 and a carbon dioxide sensor 214 are arranged in the field 210. In the present embodiment, the trigeneration system 250 includes, for example, a reformer 260, a fuel cell 262, a pipe 263, a hydrogen storage facility 264, a pipe 265, and an automatic valve 266. The trigeneration system 250 may include a flow control unit 272 and piping 274. The trigeneration system 250 may include a heat storage device 282, a heat exchanger 284, and an automatic valve 286. In FIG. 2, transfer limiting members such as an automatic valve and a flow rate adjusting valve may be arranged at the places indicated by circles.

The controller 240 may be an example of an energy management device. The trigeneration system 250 may be an example of an energy generator, a first trigeneration system, and a second trigeneration system. The reformer 260 may be an example of a carbon dioxide generating part, a heat generating part, and a reforming part. The fuel cell 262 may be an example of a power generation unit and a heat generation unit. The pipe 263 may be an example of the first pipe. The hydrogen storage facility 264 may be an example of a hydrogen storage unit. The pipe 265 may be an example of the second pipe. The automatic valve 266 may be an example of a transfer limiting unit.

In the present embodiment, plants or agricultural products are cultivated in the field 210. Examples of agricultural products include cereals, vegetables, fruits, tea, mushrooms, hyphae and the like. One or more temperature sensors 212 may be arranged in the field 210. The temperature sensor 212 measures the air temperature, water temperature, soil temperature, etc. at various places in the field 210. One or more carbon dioxide sensors 214 may be arranged in the field 210. The carbon dioxide sensor 214 measures the carbon dioxide concentration in the air at various points in the field 210. The temperature sensor 212 and the carbon dioxide sensor 214 may output information indicating the measurement result to the controller 240.

The temperature sensor 212 and the carbon dioxide sensor 214 may be an example of sensors arranged in the field 210. In addition to the temperature sensor 212 and the carbon dioxide sensor 214, various sensors may be arranged in the field 210. For example, a humidity sensor is arranged in the field 210.

In this embodiment, the power load 220 uses electricity. The power load 220 may be an electrical device that consumes power. The operation of at least a part of the power load 220 may be controlled by the controller 240.

In the present embodiment, the power distribution equipment 230 controls the distribution of electric power between the power grid 12 and the wiring inside the agricultural facility 122. For example, the power distribution facility 230 controls the transfer of power between the power grid 12 and the trigeneration system 250. The distribution equipment 230 may control the distribution of electric power inside the agricultural facility 122. For example, the power distribution facility 230 controls the supply of power from the trigeneration system 250 to the power load 220. The power distribution equipment 230 may convert alternating current to direct current or may convert direct current to alternating current. The power distribution equipment 230 may adjust at least one of the voltage and frequency of electricity. The operation of the power distribution equipment 230 may be controlled by the controller 240.

The distribution equipment 230 may include one or more watt-hour meters. The power distribution facility 230 may measure at least one of the instantaneous power [kW] and the electric energy [kWh] of the electricity supplied from the power grid 12 to the agricultural facility 122. The power distribution facility 230 may measure at least one of the instantaneous power [kW] and the electric energy [kWh] of the electricity supplied from the agricultural facility 122 to the power grid 12. The power distribution facility 230 may measure at least one of the instantaneous power [kW] and the electric energy [kWh] of the electricity generated by the trigeneration system 250. At least one of the instantaneous power [kW] and the electric energy [kWh] of the electricity consumed by one or more electric devices arranged inside the agricultural facility 122 may be measured. The power distribution equipment 230 may output information indicating at least one of the measured instantaneous power [kW] and the electric energy [kWh] to the controller 240.

In this embodiment, the controller 240 controls the operations of the power load 220, the power distribution equipment 230, and the trigeneration system 250. The controller 240 acquires information indicating the measurement results of the temperature sensor 212 and the carbon dioxide sensor 214. The controller 240 may control at least one operation of the power load 220, the distribution equipment 230 and the trigeneration system 250 based on the measurement results of at least one of the temperature sensor 212 and the carbon dioxide sensor 214.

In this embodiment, the controller 240 manages the supply and demand of energy and energy sources in the agricultural facility 122. The controller 240 has, for example, (i) power consumption in the power load 220, (ii) power consumption and power generation in the trigeneration system 250, and (iii) hydrogen consumption, hydrogen generation and hydrogen residue in the trigeneration system 250. Amount (iv) Information indicating the amount of carbon dioxide generated in the trigeneration system 250 and (v) at least one of heat consumption, calorific value, and heat storage in the trigeneration system 250 is acquired. The controller 240 may control at least one operation of the power load 220, the distribution equipment 230, and the trigeneration system 250 based on the above information.

In the present embodiment, the controller 240 cooperates with the management server 130 to adjust the excess or deficiency of energy and energy sources in the agricultural facility 122 or the community to which the agricultural facility 122 belongs. The controller 240 transmits, for example, information about the supply and demand state of energy and the energy source in the agricultural facility 122 to the management server 130. The controller 240 may send a request for adjusting the excess or deficiency of the energy and the energy source in the agricultural facility 122 to the management server 130.

The controller 240 may obtain information about the supply and demand state of at least one of the energy and the energy source in the community from the management server 130. The controller 240 may manage the power transmission / reception between the agricultural facility 122 and the power grid 12 based on the information acquired from the management server 130. Details of the controller 240 will be described later.

In this embodiment, the trigeneration system 250 generates electricity, heat and carbon dioxide and supplies them to the outside. The trigeneration system 250 may generate hydrogen and supply the hydrogen to the outside. For example, the trigeneration system 250 supplies heat and carbon dioxide to the field 210. The trigeneration system 250 supplies power to the power load 220 or the power grid 12.

In the present embodiment, the reformer 260 decomposes a raw material gas containing hydrogen and carbon to generate hydrogen and carbon dioxide. The reformer 260 may decompose the raw material gas to generate heat. The reformer 260 may use electric power to decompose the raw material gas. The hydrogen generated by the reformer 260 is transferred to the fuel cell 262 via, for example, the pipe 263. The hydrogen generated by the reformer 260 is transferred to the hydrogen storage facility 264 via, for example, the pipe 265. The hydrogen generated by the reformer 260 is transferred to the field 210 via, for example, the pipe 274. The heat generated by the reformer 260 is transferred to at least one of the heat storage device 282 and the heat exchanger 284 via, for example, a transfer pipe of an arbitrary heat medium.

In the present embodiment, the fuel cell 262 uses hydrogen to generate electric power. The fuel cell 262 may use hydrogen to generate heat. The fuel cell 262 is supplied with at least one of hydrogen generated by the reformer 260 and hydrogen stored in the hydrogen storage facility 264. The fuel cell 262 may supply power to at least one of the power grid 12 and the field 210 via the power distribution facility 230.

The heat generated by the fuel cell 262 is transferred to at least one of the heat storage device 282 and the heat exchanger 284 via, for example, a transfer pipe of an arbitrary heat medium. A member that restricts the transfer of the heat medium may be arranged in the pipe that supplies heat from the fuel cell 262 to the heat storage device 282. A member that restricts the transfer of the heat medium may be arranged in the pipe that supplies heat from the fuel cell 262 to the heat exchanger 284. The member that limits the transfer of the heat medium may be an automatic valve. The operation of the automatic valve may be controlled by a controller 240 or a controller (not shown) of the trigeneration system 250.

In the present embodiment, the hydrogen storage facility 264 stores hydrogen supplied from the outside. For example, the hydrogen storage facility 264 stores the hydrogen supplied from the reformer 260 in a hydrogen storage container (not shown). The hydrogen storage facility 264 may store the hydrogen supplied from the fuel cell vehicle 22 in the hydrogen storage container. The method for storing hydrogen is not particularly limited. Hydrogen may be stored at a relatively high pressure or at a relatively low pressure. Hydrogen may be stored in a gaseous state, in a liquid state, or in a state of being absorbed by a hydrogen storage material.

The hydrogen storage facility 264 may supply hydrogen to the outside. For example, the hydrogen storage facility 264 supplies hydrogen to the fuel cell 262. The hydrogen storage facility 264 may supply hydrogen to the fuel cell vehicle 22. A member that restricts the transfer of hydrogen may be arranged in the pipe that supplies hydrogen from the hydrogen storage facility 264 to the fuel cell 262. A member that restricts the transfer of hydrogen may be arranged in the pipe that supplies hydrogen from the hydrogen storage facility 264 to the fuel cell vehicle 22. The member that limits the transfer of hydrogen may be an automatic valve. The operation of the automatic valve may be controlled by a controller 240 or a controller (not shown) of the trigeneration system 250.

In the present embodiment, the automatic valve 266 limits the transfer of hydrogen in at least one of the pipe 263 and the pipe 265. Thereby, the transfer destination and the transfer amount of hydrogen generated by the reformer 260 are controlled. The operation of the automatic valve 266 may be controlled by a controller 240 or a controller (not shown) of the trigeneration system 250.

In this embodiment, the flow control unit 272 limits the transfer of carbon dioxide from the reformer 260 to the field 210. The flow rate control unit 272 may be arranged in a part of the pipe 274. Thereby, the amount of carbon dioxide transferred to the field 210 is controlled. The operation of the flow rate control unit 272 may be controlled by a controller 240 or a control device (not shown) of the trigeneration system 250. Details of the flow rate control unit 272 will be described later.

In the present embodiment, the heat storage device 282 stores the heat generated by at least one of the reformer 260 and the fuel cell 262. In the present embodiment, the heat exchanger 284 uses the heat generated by at least one of the reformer 260 and the fuel cell 262 or the heat stored in the heat storage device 282 as a temperature control device (not shown) in the field 210. Not.). The heat exchange method in the heat exchanger 284 is not particularly limited.

In this embodiment, the automatic valve 286 limits the transfer of the heat medium that transfers the heat generated by the reformer 260. The transfer of the heat medium is restricted in at least one of the piping for transferring the heat medium from the reformer 260 to the heat storage device 282 and the piping for transferring the heat medium from the reformer 260 to the heat storage device 282. Thereby, the transfer destination and the transfer amount of the heat generated by the reformer 260 are controlled. The operation of the automatic valve 266 may be controlled by a controller 240 or a controller (not shown) of the trigeneration system 250.

FIG. 3 schematically shows an example of the internal configuration of the controller 240. In the present embodiment, the controller 240 includes, for example, an air conditioning management unit 322, an electric power supply and demand management unit 324, a hydrogen supply and demand management unit 326, and a system control unit 330. In the present embodiment, the system control unit 330 includes a power supply control unit 332, a hydrogen supply control unit 334, a carbon dioxide supply control unit 336, a heat supply control unit 338, and a vehicle allocation request unit 342.

The electric power supply and demand management unit 324 may be an example of the electric power supply and demand acquisition unit. The hydrogen supply and demand management unit 326 may be an example of the hydrogen supply and demand acquisition unit. The system control unit 330 may be an example of an energy management device. The power supply control unit 332 may be an example of the power generation control unit. The carbon dioxide supply control unit 336 may be an example of a supply request acquisition unit and a response determination unit. The vehicle dispatch request unit 342 may be an example of a dispatch request transmission unit.

In the present embodiment, the air conditioning control unit 322 manages at least one of the temperature, humidity and carbon dioxide concentration of the field 210. The air conditioning control unit 322 may manage at least one of the temperature, humidity and carbon dioxide concentration of the air in the field 210. At least one of the temperature and humidity of the medium in the field 210 may be controlled.

The air conditioning control unit 322 acquires information indicating the measurement results of various sensors arranged in the field 210. The air conditioning control unit 322 outputs various requests to the system control unit 330 based on the measurement results of the above sensors. For example, the air conditioning control unit 322 outputs a heat request requesting heat supply based on the measurement result of the temperature sensor 212. The air conditioning control unit 322 may output a carbon dioxide request requesting the supply of carbon dioxide based on the measurement result of the carbon dioxide sensor 214. The air conditioning control unit 322 outputs a humidification request requesting humidification based on the measurement result of the humidity sensor. The carbon dioxide requirement may be an example of a supply requirement.

In the present embodiment, the electric power supply and demand management unit 324 manages the electric power supply and demand in the agricultural facility 122. For example, the electric power supply and demand management unit 324 acquires information (sometimes referred to as electric power supply and demand information) indicating the electric power supply and demand status in the agricultural facility 122.

The electric power supply and demand management unit 324 may acquire information indicating the electric power consumption in the agricultural facility 122 from the electric power distribution facility 230. The electric power supply and demand management unit 324 may acquire information indicating the electric power supply amount in the agricultural facility 122 from the electric power distribution facility 230. The electric power supply and demand management unit 324 may acquire information indicating the amount of power generated by the trigeneration system 250 from the electric power distribution facility 230. The electric power supply and demand management unit 324 may acquire information indicating the amount of power transmitted from the agricultural facility 122 to the electric power grid 12 from the electric power distribution facility 230. The power supply and demand management unit 324 may predict the power consumption in the agricultural facility 122. The electric power supply and demand management unit 324 may predict the electric power supply amount in the agricultural facility 122.

The electric power supply and demand management unit 324 may acquire information indicating the electric power supply and demand status in the community to which the agricultural facility 122 belongs from the management server 130. The power supply and demand situation in the community may be the power supply and demand information in the power grid 12. The content indicated by the power supply and demand information of the community may be the same as the power supply and demand information of the agricultural facility 122. The power supply and demand situation in the community may be an example of the power supply and demand situation in the agricultural facility 122.

In the present embodiment, the hydrogen supply and demand management unit 326 manages the hydrogen supply and demand in the agricultural facility 122. For example, the hydrogen supply and demand management unit 326 acquires information indicating the hydrogen supply and demand status at the agricultural facility 122 (sometimes referred to as hydrogen supply and demand information).

The hydrogen supply and demand management unit 326 may acquire information indicating the hydrogen consumption in the fuel cell 262 from the trigeneration system 250. The hydrogen supply and demand management unit 326 may acquire information indicating the amount of hydrogen supplied to the hydrogen storage container mounted on the fuel cell vehicle 22 from the trigeneration system 250. The hydrogen supply and demand management unit 326 may acquire information indicating the amount of hydrogen produced in the reformer 260 from the trigeneration system 250. The hydrogen supply and demand management unit 326 may acquire information indicating the remaining amount of hydrogen in the hydrogen storage facility 264 from the trigeneration system 250. The hydrogen supply and demand management unit 326 may predict the hydrogen consumption in the trigeneration system 250. The hydrogen supply and demand management unit 326 may predict the amount of hydrogen produced in the trigeneration system 250. The hydrogen supply and demand management unit 326 may predict the remaining amount of hydrogen in the trigeneration system 250.

The hydrogen supply and demand management unit 326 may acquire information indicating the hydrogen supply and demand status in the community to which the agricultural facility 122 belongs from the management server 130. The content indicated by the hydrogen supply and demand information of the community may be the same as the hydrogen supply and demand information of the agricultural facility 122. The hydrogen supply and demand situation in the community may be an example of the hydrogen supply and demand situation in the agricultural facility 122.

The system control unit 330 controls the operations of the power load 220, the distribution equipment 230, and the trigeneration system 250. The system control unit 330 may control communication between the controller 240 and the management server 130. The system control unit 330 may have a communication interface. The above communication interface may support a plurality of communication methods.

In the present embodiment, the power supply control unit 332 controls the power supply in the trigeneration system 250. For example, the power supply control unit 332 determines whether or not to operate the fuel cell 262. The electric power supply control unit 332 may decide whether or not to operate the fuel cell 262 based on (i) the supply and demand situation of electric power in the agricultural facility 122 and (ii) the supply and demand situation of hydrogen in the agricultural facility 122. ..

In one embodiment, the power supply control unit 332 includes information indicating one or more periods based on (i) the supply and demand status of electricity in the agricultural facility 122 and (ii) the supply and demand status of hydrogen in the agricultural facility 122. Generate an operation schedule associated with the amount of power generated in each period. The power supply control unit 332 operates the fuel cell 262 according to the operation schedule.

In another embodiment, the power supply control unit 332 may decide whether or not to operate the fuel cell 262 based on the degree of excess power supply in the agricultural facility 122. For example, the power supply control unit 332 does not operate the fuel cell 262 or does not operate the fuel cell 262 when the excess power supply in the agricultural facility 122 satisfies a specific condition (sometimes referred to as an excess power condition). , Decides to stop the fuel cell 262. The power supply control unit 332 may decide to operate the fuel cell 262 when the excess power supply in the agricultural facility 122 does not satisfy the above conditions.

The degree of power supply excess may be a parameter indicating the degree of power excess or tightness. The degree of excess power supply may be represented by a continuous numerical value or by a stepwise division. Each division may be distinguished by a symbol or a letter, or by a number.

The degree of excess power supply and demand may be determined based on at least one of the surplus power and the power supply capacity. The excess power supply and demand is, for example, (i) the ratio of the surplus power or the surplus power supply in the agricultural facility 122 to the power demand in the agricultural facility 122, and (ii) the surplus in the agricultural facility 122 with respect to the power supply capacity in the agricultural facility 122. It is determined based on the ratio of electric power or surplus supply capacity.

The degree of excess power supply and demand may be determined based on the power supply and demand situation in the community to which the agricultural facility 122 belongs. The excess of power supply and demand is, for example, (i) the ratio of surplus power or surplus power in the power grid 12 to the power demand in the community, and (ii) the ratio of surplus power or surplus power in the community to the power supply capacity in the power grid 12. It is decided based on. The power supply and demand situation in the power grid 12 may be an example of the power supply and demand situation in the community to which the agricultural facility 122 belongs.

The power supply control unit 332 may control the supply of power to at least one of the one or more power loads 220. As a result, the electric power supply control unit 332 can limit the consumption of electric power in the agricultural facility 122 and adjust the electric power supply and demand of the agricultural facility 122.

In the present embodiment, the hydrogen supply control unit 334 controls the hydrogen supply in the trigeneration system 250. For example, the hydrogen supply control unit 334 determines whether or not to operate the reformer 260. The hydrogen supply control unit 334 determines whether or not to operate the reformer 260 based on (i) the supply and demand situation of electric power in the agricultural facility 122 and (ii) the supply and demand situation of hydrogen in the agricultural facility 122. Good.

In one embodiment, the hydrogen supply control unit 334 contains information indicating one or more periods based on (i) the power supply and demand situation at the agricultural facility 122 and (ii) the hydrogen supply and demand situation at the agricultural facility 122. Generate an operation schedule associated with the amount of hydrogen generated in each period. The hydrogen supply control unit 334 operates the reformer 260 according to the operation schedule.

In another embodiment, the hydrogen supply control unit 334 may decide whether or not to operate the reformer 260 based on the excess hydrogen supply in the agricultural facility 122. For example, the hydrogen supply control unit 334 does not operate the reformer 260 when the excess hydrogen supply in the agricultural facility 122 satisfies a specific condition (sometimes referred to as a hydrogen excess condition). Alternatively, it is decided to stop the reformer 260. The hydrogen supply control unit 334 may decide to operate the reformer 260 when the excess power supply in the agricultural facility 122 does not satisfy the above conditions.

The degree of excess hydrogen supply may be a parameter indicating the degree of excess or tightness of hydrogen. The degree of excess hydrogen supply may be represented by continuous numerical values or by gradual division. Each division may be distinguished by a symbol or a letter, or by a number.

The excess supply and demand of hydrogen may be determined based on at least one of the amount of surplus hydrogen and the surplus capacity of hydrogen supply. The excess of hydrogen supply and demand is, for example, (i) the ratio of the surplus hydrogen amount or the supply capacity of the agricultural facility 122 to the hydrogen demand amount of the agricultural facility 122, and (ii) the hydrogen supply capacity of the agricultural facility 122. It is determined based on the amount of surplus hydrogen in 122 or the ratio of surplus supply capacity.

The excess supply and demand of hydrogen may be determined based on the supply and demand situation of hydrogen in the community to which the agricultural facility 122 belongs. The excess of hydrogen supply and demand is, for example, (i) the ratio of the surplus hydrogen amount or the supply capacity in the community to the hydrogen demand in the community, and (ii) the surplus hydrogen amount or the supply capacity in the community to the hydrogen supply capacity in the community. It is decided based on the ratio of.

In the present embodiment, the hydrogen supply control unit 334 controls the hydrogen supply path and the supply amount of hydrogen generated by the reformer 260. For example, the hydrogen supply control unit 334 controls the operation of the automatic valve 266. Thereby, the hydrogen supply control unit 334 can control the transfer destination of hydrogen and the transfer amount to each transfer destination.

In the present embodiment, the carbon dioxide supply control unit 336 controls the supply of carbon dioxide in the trigeneration system 250. For example, the carbon dioxide supply control unit 336 determines whether or not to operate the reformer 260. The carbon dioxide supply control unit 336 decides whether or not to operate the reformer 260 based on (i) the supply and demand situation of electric power in the agricultural facility 122 and (ii) the supply and demand situation of hydrogen in the agricultural facility 122. It's okay.

For example, the carbon dioxide supply control unit 336 acquires the carbon dioxide request output by the air conditioning control unit 322. The carbon dioxide supply control unit 336 acquires the power supply and demand information of the agricultural facility 122 from the power supply and demand management unit 324. The carbon dioxide supply control unit 336 acquires hydrogen supply and demand information of the agricultural facility 122 from the hydrogen supply and demand management unit 326. The carbon dioxide supply control unit 336 determines whether or not to meet the carbon dioxide request based on (i) the power supply and demand status indicated by the power supply and demand information and (ii) the hydrogen supply and demand status indicated by the hydrogen supply and demand information. decide.

In one embodiment, carbon dioxide supply control is performed when the excess hydrogen supply indicated by the hydrogen supply and demand information satisfies the hydrogen excess condition and the excess power supply indicated by the power supply and demand information satisfies the power excess condition. Part 336 decides not to meet the carbon dioxide requirements. In another embodiment, if the excess hydrogen supply indicated by the hydrogen supply and demand information does not satisfy the hydrogen excess condition, and the excess power supply indicated by the power supply and demand information satisfies the power excess condition, carbon dioxide is used. The supply control unit 336 may decide to meet the carbon dioxide requirements. When it is determined to meet the carbon dioxide requirement, the carbon dioxide supply control unit 336 executes at least one of a process for operating the reformer 260 and a process for controlling the flow rate control unit 272. Good.

When the required amount of carbon dioxide is specified in the carbon dioxide requirement, the carbon dioxide supply control unit 336 may, for example, determine the excess hydrogen supply and the excess power supply when the required amount of carbon dioxide is generated. To determine. When the determined excess hydrogen supply satisfies the hydrogen excess condition and the determined excess power supply satisfies the power excess condition, the carbon dioxide supply control unit 336 does not comply with the carbon dioxide requirement. May be decided.

In this case, the carbon dioxide supply control unit 336 calculates the amount of carbon dioxide that can be supplied by the trigeneration system 250 based on the supply and demand information of hydrogen and electric power, and transfers the carbon dioxide amount to the air conditioning management unit 322. You may notify. The air conditioning control unit 322 may output the carbon dioxide requirement again by changing the carbon dioxide requirement. The air conditioning control unit 322 outputs a carbon dioxide request that requests the supply of carbon dioxide within the range of the amount of carbon dioxide that can be supplied by the trigeneration system 250 without specifying the required amount of carbon dioxide. You may.

In the present embodiment, the carbon dioxide supply control unit 336 controls the supply path and the supply amount of carbon dioxide generated by the reformer 260. For example, the carbon dioxide supply control unit 336 controls the operation of the flow rate control unit 272. Thereby, the carbon dioxide supply control unit 336 can control the transfer destination of carbon dioxide and the transfer amount to each transfer destination. Specifically, the carbon dioxide supply control unit 336 controls the amount of carbon dioxide supplied to the field 210.

In this embodiment, the heat supply control unit 338 controls the heat supply in the trigeneration system 250. For example, the heat supply control unit 338 determines whether to operate at least one of the reformer 260 and the fuel cell 262. The heat supply control unit 338 may determine whether to operate at least one of the reformer 260 and the fuel cell 262 based on the amount of heat stored in the heat storage device 282. The heat supply control unit 338 operates at least one of the reformer 260 and the fuel cell 262 based on (i) the power supply and demand situation in the agricultural facility 122 and (ii) the hydrogen supply and demand situation in the agricultural facility 122. You may decide whether or not.

For example, the heat supply control unit 338 acquires the heat request output by the air conditioning control unit 322. The heat supply control unit 338 determines whether or not to meet the heat requirement based on the amount of heat stored in the heat storage device 282. If the amount of heat required by the heat requirement is less than or equal to the amount of heat stored in the heat storage device 282, it may be decided not to operate the reformer 260 and the fuel cell 262. After that, the heat supply control unit 338 operates the heat storage device 282 and the heat exchanger 284 to execute a process for supplying heat to the field 210.

On the other hand, when the amount of heat required by the heat request exceeds the amount of heat stored in the heat storage device 282, the heat supply control unit 338 acquires the power supply and demand information of the agricultural facility 122 from the power supply and demand management unit 324. The heat supply control unit 338 acquires hydrogen supply and demand information of the agricultural facility 122 from the hydrogen supply and demand management unit 326. Further, the heat supply control unit 338 determines whether or not to respond to the heat request based on (i) the power supply and demand status indicated by the power supply and demand information and (ii) the hydrogen supply and demand status indicated by the hydrogen supply and demand information. decide.

In one embodiment, when the excess hydrogen supply indicated by the hydrogen supply and demand information satisfies the hydrogen excess condition and the excess power supply indicated by the power supply and demand information satisfies the power excess condition, the heat supply control unit 338 determines not to meet the heat requirement. In another embodiment, when the excess hydrogen supply indicated by the hydrogen supply and demand information does not satisfy the hydrogen excess condition and the excess power supply indicated by the power supply and demand information satisfies the power excess condition, the heat supply is performed. The control unit 338 may decide to meet the thermal demand. The heat supply control unit 338 may determine whether to operate the reformer 260 or the fuel cell 262 based on the hydrogen supply and demand information and the electric power supply and demand information. When it is determined to meet the heat requirement, the heat supply control unit 338 performs at least one of the processes for operating at least one of the reformer 260 and the fuel cell 262 and the process for controlling the automatic valve 286. May be executed.

When the required amount of heat is specified in the heat requirement, the heat supply control unit 338 determines, for example, an excess of hydrogen supply and an excess of power supply when the required amount of heat is generated. When the determined hydrogen supply excess condition satisfies the hydrogen excess condition and the determined power supply excess condition satisfies the power excess condition, the heat supply control unit 338 determines not to meet the heat requirement. You can do it.

In this case, the heat supply control unit 338 may calculate the amount of heat that can be supplied by the trigeneration system 250 based on the supply and demand information of hydrogen and electric power, and notify the air conditioning management unit 322 of the amount of heat. The air conditioning control unit 322 may output the heat request again by changing the amount of heat required. Note that the air conditioning control unit 322 may output a heat request that requests heat supply within the range of the amount of heat that can be supplied by the trigeneration system 250, without specifying the amount of heat required.

In the present embodiment, the vehicle allocation request unit 342 transmits a vehicle allocation request requesting the dispatch of at least one of the fuel cell vehicle 22 and the electric vehicle 24 to the management server 130. The vehicle allocation request may be a request to the administrator of the fuel cell vehicle 22 or the electric vehicle 24. The vehicle allocation requesting unit 342 determines, for example, when the excess hydrogen supply indicated by the hydrogen supply and demand information satisfies the hydrogen excess condition and the excess power supply indicated by the power supply and demand information satisfies the power excess condition. You may send a vehicle dispatch request. The vehicle dispatch request may be an example of a dispatch request.

In one embodiment, when the remaining amount of hydrogen in the hydrogen storage facility 264 exceeds a predetermined threshold value, the vehicle allocation request unit 342 transmits a vehicle allocation request requesting the dispatch of the fuel cell vehicle 22 to the management server 130. .. The vehicle allocation request may include information indicating the amount of hydrogen released from the hydrogen storage facility 264. In another embodiment, when the electric power demand in the agricultural facility 122 exceeds a predetermined threshold value, the vehicle allocation request unit 342 issues a vehicle allocation request requesting the dispatch of the fuel cell vehicle 22 or the electric vehicle 24 to the management server 130. Send to. The vehicle allocation request may include information indicating the amount of power shortage at the agricultural facility 122.

FIG. 4 schematically shows an example of the internal configuration of the flow rate control unit 272. In the present embodiment, the flow rate control unit 272 includes, for example, a pipe 410, an automatic valve 412, and a flow rate adjusting valve 414. The flow rate control unit 272 may include a pipe 420 and a relief valve 422.

The pipe 410 and the pipe 420 transfer at least a part of the carbon dioxide generated by the reformer 260 to the field 210. The automatic valve 412 and the flow rate adjusting valve 414 are arranged in a part of the pipe 410 and adjust the amount of carbon dioxide transferred to the field 210. The operation of the automatic valve 412 may be controlled by the controller 240. The opening degree of the flow rate adjusting valve 414 may be adjusted manually or may be controlled by the controller 240.

The relief valve 422 is arranged in a part of the pipe 420. In the present embodiment, the pipe 420 is configured so that the pressure of the pipe 420 rises when the reformer 260 generates carbon dioxide while the automatic valve 412 is closed. When the pressure in the pipe 420 exceeds the set value of the relief valve 422, the relief valve 422 opens and the carbon dioxide inside the pipe 420 is released into the atmosphere.

FIG. 5 schematically shows an example of the system configuration of the energy management facility 124. In the present embodiment, the energy management facility 124 includes, for example, one or more power generation equipment 520, one or more power storage equipment 530, distribution power equipment 540, one or more hydrogen production equipment 550, and one or more hydrogen storage equipment. It includes 552 and a control device 560. In the present embodiment, the power generation facility 520 has, for example, one or more fuel cells 522. The power generation facility 520 may have one or more photovoltaic power generation devices 524.

In the present embodiment, the power generation facility 520 generates electric power. In the present embodiment, the power storage equipment 530 stores electric power. The operation of the power generation equipment 520 and the power storage equipment 530 may be controlled by the control device 560.

In this embodiment, the power distribution facility 540 controls the flow of power between the power grid 12 and the wiring inside the energy management facility 124. The power distribution facility 540 may control the distribution of power inside the energy management facility 124. The distribution equipment 540 may convert alternating current to direct current or may convert direct current to alternating current. The power distribution equipment 540 may adjust at least one of the voltage and frequency of electricity. The operation of the power distribution equipment 540 may be controlled by the control device 560.

In the present embodiment, the hydrogen production facility 550 generates hydrogen. The hydrogen production facility 550 may produce hydrogen by using electric power. For example, the hydrogen production facility 550 uses the electric power supplied from at least one of the power grid 12, the power generation facility 520, and the power storage facility 530 to produce hydrogen. The operation of the hydrogen production facility 550 may be controlled by the control device 560.

The details of the hydrogen production process in the hydrogen production facility 550 are not particularly limited. The hydrogen production facility 550 produces hydrogen by, for example, an electrochemical method. The hydrogen production facility 550 may produce hydrogen by a chemical method or may produce hydrogen by a biological method. As mentioned above, hydrogen may be an example of an energy source.

In the present embodiment, the hydrogen storage facility 552 stores the hydrogen produced by the hydrogen production facility 550. For example, the hydrogen storage facility 552 stores the hydrogen produced by the hydrogen production facility 550 in a hydrogen storage container (not shown). The method for storing hydrogen is not particularly limited. Hydrogen may be stored at a relatively high pressure or at a relatively low pressure. Hydrogen may be stored in a gaseous state, in a liquid state, or in a state of being absorbed by a hydrogen storage material.

The hydrogen storage facility 264 may supply hydrogen to the outside. The hydrogen storage facility 264 may supply hydrogen to the fuel cell vehicle 22. The operation of the hydrogen production facility 550 may be controlled by the control device 560.

In the present embodiment, the control device 560 controls the operations of the power generation equipment 520, the power storage equipment 530, the distribution power equipment 540, the hydrogen production equipment 550, and the hydrogen storage equipment 552. The control device 560 regulates the supply and demand of energy and energy sources in the community to which the energy management facility 124 belongs. The control device 560 may control at least one operation of the power generation equipment 520, the power storage equipment 530, the distribution power equipment 540, the hydrogen production equipment 550, and the hydrogen storage equipment 552 based on the instruction from the management server 130. The control device 560 may have the same configuration as the controller 240 within a technically consistent range.

FIG. 6 schematically shows an example of the internal configuration of the energy management unit 132. In the present embodiment, the energy management unit 132 includes, for example, a power supply and demand management unit 612, a hydrogen supply and demand management unit 614, a request acquisition unit 622, a request processing unit 624, and a settlement unit 632.

The electric power supply and demand management unit 612 may be an example of a first supply and demand information acquisition unit, a second supply and demand information acquisition unit, and a power transmission / reception amount management unit. The hydrogen supply and demand management unit 614 may be an example of the first supply and demand information acquisition unit and the second supply and demand information acquisition unit. The request acquisition unit 622 may be an example of the first request acquisition unit. The request processing unit 624 may be an example of an energy management device. The settlement unit 632 may be an example of a power transmission / reception amount adjustment unit.

In the present embodiment, the power supply and demand management unit 612 manages the power supply and demand of the community to be managed by the management server 130. For example, the power supply and demand management unit 612 manages the power supply and demand of a community including one or more agricultural facilities 122, one or more energy management facilities 124, and one or more supply and demand household facilities 126.

The electric power supply and demand management unit 612 may acquire information indicating the electric power supply and demand in the agricultural facility 122 from the controller 240 of the agricultural facility 122. More specifically, the electric power supply and demand management unit 612 may acquire information indicating the electric power supply and demand in the trigeneration system 250 of the agricultural facility 122 from the controller 240 of the agricultural facility 122. Similarly, the electric power supply and demand management unit 612 may acquire information indicating the electric power supply and demand in the supply and demand facility 126.

The electric power supply and demand management unit 612 may acquire information indicating the electric power supply and demand in the energy management facility 124 from the control device 560 of the energy management facility 124. More specifically, the electric power supply and demand management unit 612 may acquire information indicating the electric power supply and demand in the hydrogen production facility 550 of the energy management facility 124 from the control device 560 of the energy management facility 124.

The power supply and demand management unit 612 may manage information indicating at least one of the amount of power transmitted and the amount of power received between the agricultural facility 122 and the power grid 12. For example, the power supply and demand management unit 612 may manage information indicating at least one of the power transmission amount and the power reception amount between the trigeneration system 250 of the agricultural facility 122 and the power grid 12 from the controller 240 of the agricultural facility 122. Similarly, the power supply and demand management unit 612 may manage information indicating at least one of the power transmission amount and the power reception amount between the supply and demand facility 126 agricultural facility 122 and the power grid 12.

The power supply and demand management unit 612 may manage information indicating at least one of the amount of power transmitted and the amount of power received between the energy management facility 124 and the power grid 12. For example, the power supply and demand management unit 612 manages information indicating at least one of the transmission amount and the power reception amount between the hydrogen production facility 550 of the energy management facility 124 and the power grid 12 from the control device 560 of the energy management facility 124. You can.

In the present embodiment, the hydrogen supply and demand management unit 614 may acquire information indicating the hydrogen supply and demand in the agricultural facility 122 from the controller 240 of the agricultural facility 122. More specifically, the hydrogen supply and demand management unit 614 may acquire information indicating hydrogen supply and demand in the trigeneration system 250 of the agricultural facility 122 from the controller 240 of the agricultural facility 122.

The hydrogen supply and demand management unit 614 may acquire information indicating the hydrogen supply and demand in the energy management facility 124 from the control device 560 of the energy management facility 124. More specifically, the hydrogen supply and demand management unit 614 may acquire information indicating the hydrogen supply and demand in the hydrogen production facility 550 of the energy management facility 124 from the control device 560 of the energy management facility 124.

In the present embodiment, the request acquisition unit 622 acquires various requests. The request acquisition unit 622 may acquire a request from at least one of the agricultural facility 122, the energy management facility 124, the supply / demand facility 126, the fuel cell vehicle 22, the electric vehicle 24, and the communication terminal 32. For example, the request acquisition unit 622 acquires a permission request from the controller 240 of the agricultural facility 122 to request permission for transmission from the trigeneration system 250 to the power grid 12. The license request may be an example of the first request.

In this embodiment, the request processing unit 624 may generate various requests for adjusting the power supply and demand in the community. For example, the request processing unit 624 acquires information indicating the power supply and demand of the trigeneration system 250 of the agricultural facility 122 and information indicating the power supply and demand of the hydrogen production facility 550 of the energy management facility 124 from the power supply and demand management unit 612. .. Further, the request processing unit 624 acquires information indicating the hydrogen supply and demand of the trigeneration system 250 of the agricultural facility 122 and information indicating the hydrogen supply and demand of the hydrogen production facility 550 of the energy management facility 124 from the hydrogen supply and demand management unit 614. ..

Based on the above-mentioned information indicating the power supply and demand and the hydrogen supply and demand, the request processing unit 624 (i) sets an upper limit of the amount of power that the hydrogen production facility 550 of the energy management facility 124 can receive from the power grid during a specific period. , (Ii) Target value of the amount of hydrogen generated by the hydrogen production facility 550 of the energy management facility 124 in a specific period, (iii) The trigeneration system 250 of the agricultural facility 122 transmits power to the power system in a specific period. The upper limit of the amount of power that can be generated and (iv) at least one of the target values of the amount of power generated by the trigeneration system 250 of the agricultural facility 122 in a specific period may be determined. The request processing unit 624 may transmit information indicating the determined upper limit value or target value to at least one of the agricultural facility 122 and the energy management facility 124.

The request processing unit 624 may process various requests acquired by the request acquisition unit 622. For example, when the request acquisition unit 622 acquires a license request, the request processing unit 624 receives information from the power supply and demand management unit 612 indicating the power supply and demand of the trigeneration system 250 of the agricultural facility 122 and hydrogen production of the energy management facility 124. Acquires information indicating the power supply and demand of the equipment 550. Further, the request processing unit 624 acquires information indicating the hydrogen supply and demand of the trigeneration system 250 of the agricultural facility 122 and information indicating the hydrogen supply and demand of the hydrogen production facility 550 of the energy management facility 124 from the hydrogen supply and demand management unit 614. ..

Next, the request processing unit 624 starts from the trigeneration system 250 based on the information indicating the power supply and demand of the trigeneration system 250 of the agricultural facility 122 and the information indicating the power supply and demand of the hydrogen production facility 550 of the energy management facility 124. Determines whether or not to allow power transmission to the power grid 12.

For example, the request processing unit 624 decides to prohibit power transmission when the excess hydrogen supply in the hydrogen production facility 550 of the energy management facility 124 satisfies the predetermined first condition. The first condition may be a case where the excess amount of hydrogen exceeds a predetermined degree.

In the present embodiment, the settlement unit 632 generates a report showing the status of power supply and demand for each unit period for each of one or more agricultural facilities 122, one or more energy management facilities 124, and one or more supply and demand facilities 126. .. The length of the unit period is exemplified by one day, one week, one month, or the like.

When the request processing unit 624 decides to permit power transmission in response to the license request from the agricultural facility 122, the settlement unit 632 determines the amount of electric power supplied to the power grid 12 by the agricultural facility 122 that transmitted the license request. , The process to be read as the amount of electric power used by the energy management facility 124 to produce hydrogen may be executed. In one embodiment, the request processing unit 624 subtracts the amount of power transmitted from the trigeneration system 250 of the agricultural facility 122 according to the permit to the power grid 12 from the amount of power received from the power grid 12 of the hydrogen production facility 550 of the energy management facility 124. To do. In another embodiment, the request processing unit 624 adds the amount of power transmitted from the trigeneration system 250 of the agricultural facility 122 to the power grid 12 according to the permission to the amount of power transmitted from the hydrogen production facility 550 of the energy management facility 124 to the power grid. To do.

FIG. 7 schematically shows an example of information processing in the settlement unit 632. In FIG. 7, the settlement unit 632 subtracts the amount of power sold by the agricultural facility 122 to the power grid 12 from the amount of power purchased by the energy management facility 124 from the power grid 12. As a result, the amount of electric power supplied by the agricultural facility 122 to the electric power grid 12 can be replaced with the amount of electric power used by the energy management facility 124 to produce hydrogen.

FIG. 8 schematically shows an example of the internal configuration of the vehicle allocation management unit 134. In the present embodiment, the vehicle allocation management unit 134 includes, for example, a vehicle management unit 822, a usage change unit 824, a vehicle allocation request acquisition unit 832, and a vehicle allocation unit 834.

The vehicle management unit 822 may be an example of the mobile body management unit. The vehicle allocation request acquisition unit 832 may be an example of the second request acquisition unit. The vehicle allocation unit 834 may be an example of the second determination unit.

In the present embodiment, the vehicle management unit 822 manages at least one of the fuel cell vehicle 22 and the electric vehicle 24. Specifically, the vehicle management unit 822 manages information indicating at least one state of one or more fuel cell vehicles 22 and one or more electric vehicles 24. The information indicating the state of the fuel cell vehicle 22 may include information indicating the remaining amount of hydrogen in the fuel cell vehicle 22. The information indicating the state of the electric vehicle 24 may include information indicating the remaining battery level of the electric vehicle 24.

Other examples of the state of the fuel cell vehicle 22 or the electric vehicle 24 include the position of the vehicle, the use of the vehicle, the type of the vehicle, and the usage status of the vehicle. Examples of the use of the vehicle include the use of renting a car to a user of a rental car service, the use of a power supply device, and the use of a hydrogen transport device. Examples of vehicle types include fuel cell vehicles, electric vehicles, engine vehicles that carry portable hydrogen storage containers, and engine vehicles that carry portable power storage devices.

Examples of the usage status of the vehicle include the status of the vehicle, the scheduled time when the status of the vehicle will be available next, the position of the vehicle at the scheduled time, and the like. Examples of the status include states such as available, in use, and under maintenance.

The usage change unit 824 changes the usage of one or more fuel cell vehicles 22 and one or more electric vehicles 24. The usage change unit 824 may change the usage of the vehicle based on at least one of the power supply and demand situation and the hydrogen supply and demand situation in the community. For example, the usage change unit 824 determines the number of vehicles to be allocated to each usage based on at least one of the power supply and demand situation and the hydrogen supply and demand situation in the community. The usage change unit 824 may change the usage of each vehicle based on the above determination result.

For example, the usage change unit 824 increases the number of vehicles allocated for the purpose of being rented to the user of the rental car service during the tourist season as compared with other times. On the other hand, during the harvest season of agricultural work, the number of vehicles allocated for use as hydrogen transport equipment will be increased compared to other seasons.

In the present embodiment, the vehicle allocation request acquisition unit 832 acquires the vehicle allocation request from each facility of the energy management system 100. For example, the vehicle allocation request acquisition unit 832 acquires a vehicle allocation request from the agricultural facility 122. The vehicle allocation request may be an example of the second request.

In the present embodiment, the vehicle allocation unit 834 manages the use of the vehicle managed by the vehicle allocation management unit 134. For example, when the vehicle allocation request acquisition unit 832 acquires the vehicle allocation request from the agricultural facility 122, the vehicle allocation unit 834 determines a vehicle to be moved to the agricultural facility 122 among one or more vehicles managed by the vehicle allocation management unit 134. The vehicle allocation unit 834 has (i) the status of power supply and demand and hydrogen supply and demand in the trigeneration system 250 of the agricultural facility 122 or the agricultural facility 122, and (ii) the state of one or more vehicles managed by the vehicle allocation management unit 134. Based on this, the vehicle to be moved to the agricultural facility 122 is determined.

In one embodiment, when the excess hydrogen supply in the trigeneration system 250 of the agricultural facility 122 satisfies the second condition, the vehicle dispatching unit 834 transfers the vehicle whose remaining hydrogen amount satisfies the third condition to the agricultural facility 122. Determine as the vehicle to move. The second condition may be that the excess hydrogen supply exceeds a predetermined degree. The third condition may be a condition that the remaining amount of hydrogen is smaller than a predetermined value. The third condition may be a condition that the remaining amount of hydrogen is a sufficient amount to reach the agricultural facility 122 and is smaller than a predetermined value.

As a result, a vehicle capable of sufficiently receiving the hydrogen stored in the hydrogen storage facility 264 of the agricultural facility 122 is dispatched to the agricultural facility 122. As a result, the excess of hydrogen in the agricultural facility 122 is alleviated.

In another embodiment, when the excess hydrogen supply in the trigeneration system 250 of the agricultural facility 122 satisfies the second condition, the vehicle dispatching unit 834 selects a vehicle whose remaining battery level satisfies the fourth condition, the agricultural facility 122. Determined as the vehicle to be moved to. The second condition may be that the excess hydrogen supply exceeds a predetermined degree. The fourth condition may be a condition that the remaining battery level is smaller than a predetermined value. The fourth condition may be a condition that the remaining battery level is sufficient to reach the agricultural facility 122 and is smaller than a predetermined value.

As a result, a vehicle capable of sufficiently receiving the electric power generated by the fuel cell 262 of the agricultural facility 122 is dispatched to the agricultural facility 122. As a result, the excess of hydrogen in the agricultural facility 122 is alleviated.

FIG. 9 schematically shows an example of the data table 900. The data table 900 may be an example of the data structure of the database managed by the vehicle management unit 822.

In the present embodiment, the data table 900 includes (i) vehicle identification information 912, (ii) information 914 indicating the current position of the vehicle, information 916 indicating the use of the vehicle, information 918 indicating the type of vehicle, and hydrogen. At least one of information 920 indicating the remaining amount, information 922 indicating the status of the vehicle, and information 924 indicating the scheduled time when the status of the vehicle will be available next is stored in association with each other.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various changes or improvements can be made to the above embodiments. Further, to the extent that there is no technical contradiction, the matters described for the specific embodiment can be applied to other embodiments. It is clear from the claims that the form with such modifications or improvements may also be included in the technical scope of the invention.

The order of execution of operations, procedures, steps, steps, etc. in the devices, systems, programs, and methods shown in the claims, specifications, and drawings is particularly "before" and "prior to". It should be noted that it can be realized in any order unless the output of the previous process is used in the subsequent process. Even if the claims, the specification, and the operation flow in the drawings are explained using "first", "next", etc. for convenience, it means that it is essential to carry out in this order. is not it.

12 power network, 14 communication network, 22 fuel cell vehicle, 24 electric vehicle, 32 communication terminal, 100 energy management system, 122 agricultural facility, 124 energy management facility, 126 supply and demand facility, 130 management server, 132 energy management department, 134 dispatch Management Department, 210 fields, 212 temperature sensor, 214 carbon dioxide sensor, 220 power load, 230 distribution equipment, 240 controller, 250 trigeneration system, 260 reformer, 262 fuel cell, 263 piping, 264 hydrogen storage equipment, 265 Piping, 266 automatic valve, 272 flow control unit, 274 piping, 282 heat storage equipment, 284 heat exchanger, 286 automatic valve, 322 air conditioning control unit, 324 power supply and demand management unit, 326 hydrogen supply and demand management unit, 330 system control unit, 332 Power supply control unit, 334 hydrogen supply control unit, 336 carbon dioxide supply control unit, 338 heat supply control unit, 342 vehicle allocation request unit, 410 piping, 412 automatic valve, 414 flow control valve, 420 piping, 422 relief valve, 520 power generation Equipment, 522 fuel cell, 524 solar power generation equipment, 530 power storage equipment, 540 distribution power equipment, 550 hydrogen production equipment, 552 hydrogen storage equipment, 560 control equipment, 612 power supply and demand management department, 614 hydrogen supply and demand management department, 622 request acquisition Department, 624 Request Processing Department, 632 Settlement Department, 822 Vehicle Management Department, 824 Usage Change Department, 832 Vehicle Allocation Request Acquisition Department, 834 Vehicle Allocation Department, 900 Data Table, 912 Identification Information, 914 Information, 916 Information, 918 Information, 920 Information , 922 information, 924 information

Claims (15)

A reforming unit that decomposes raw material gas containing hydrogen and carbon using electric power to generate hydrogen and carbon dioxide,
A hydrogen storage unit that stores hydrogen and
A power generation unit that generates electric power by using at least one of hydrogen generated by the reforming unit and hydrogen stored in the hydrogen storage unit.
The first pipe that transfers the hydrogen generated by the reforming section to the power generation section, and
A second pipe that transfers the hydrogen generated by the reforming unit to the hydrogen storage unit, and
A transfer limiting unit that restricts the transfer of hydrogen in at least one of the first pipe and the second pipe,
An energy generator. The supply request acquisition department that acquires the supply request that requests the supply of carbon dioxide,
An electric power supply / demand acquisition unit that acquires electric power supply / demand information indicating an electric power supply / demand status in the energy generator or an electric power network capable of transmitting / receiving power to / from the energy generator.
A hydrogen supply and demand acquisition unit that acquires hydrogen supply and demand information indicating the hydrogen supply and demand status of the energy generator, and a hydrogen supply and demand acquisition unit.
(I) With a response determination unit that determines whether or not to comply with the supply request based on the power supply and demand status indicated by the power supply and demand information and (ii) the hydrogen supply and demand status indicated by the hydrogen supply and demand information. ,
The energy generator according to claim 1, further comprising. The response determination unit is modified by (i) the power supply and demand status indicated by the power supply and demand information, (ii) the hydrogen supply and demand status indicated by the hydrogen supply and demand information, and (iii) the supply request. Based on the amount of hydrogen generated by the quality part, it is decided whether or not to meet the supply request.
The energy generator according to claim 2. The response determination unit satisfies the predetermined hydrogen excess condition in which the excess hydrogen supply indicated by the hydrogen supply / supply information satisfies the predetermined hydrogen excess condition, and the excess power supply indicated in the power supply / supply information satisfies the predetermined power supply. If the excess condition is satisfied, it is decided not to comply with the supply request.
The energy generator according to claim 2 or 3. Further provided with a power generation control unit for determining whether or not to operate the power generation unit,
When the excess hydrogen supply indicated by the hydrogen supply and demand information does not satisfy the hydrogen excess condition, and the excess power supply indicated by the power supply and demand information satisfies the power excess condition.
The response determination unit determines that the supply request is to be met.
The power generation control unit determines that the power generation unit is not operated.
The energy generator according to claim 4. When the excess hydrogen supply indicated by the hydrogen supply and demand information satisfies the hydrogen excess condition, and the excess power supply indicated by the power supply and demand information satisfies the power excess condition, the hydrogen storage container or It is further provided with a dispatch request transmission unit that transmits a dispatch request requesting the dispatch of the mobile body to the provider of the service for dispatching the mobile body equipped with the storage battery.
The energy generator according to claim 4 or 5. At least a part of the carbon dioxide generated by the reforming part is arranged in a part of the pipe for transferring the plant or agricultural product to the field where the plant or agricultural product is cultivated, and the flow rate of the carbon dioxide transferred to the field is adjusted. Further equipped with a flow control unit,
The energy generator according to any one of claims 1 to 6. The flow rate control unit has a pipe for releasing at least a part of carbon dioxide generated by the reforming unit into the atmosphere.
The energy generator according to claim 7. The reforming section uses electric power to decompose the raw material gas to generate hydrogen, carbon dioxide and heat.
The power generation unit generates electric power and heat by utilizing at least one of the hydrogen generated by the reforming unit and the hydrogen stored in the hydrogen storage unit.
The energy generator according to any one of claims 1 to 8. A heat storage unit for accumulating heat generated by at least one of the reforming unit and the power generation unit is further provided.
The energy generator according to claim 9. A control method for controlling an energy generator
The energy generator
A reforming unit that decomposes raw material gas containing hydrogen and carbon using electric power to generate hydrogen and carbon dioxide,
A hydrogen storage unit that stores hydrogen and
A power generation unit that generates electric power by using at least one of hydrogen generated by the reforming unit and hydrogen stored in the hydrogen storage unit.
With
The control method is
The supply request acquisition stage to acquire the supply request that requires the supply of carbon dioxide, and
The power supply and demand acquisition stage for acquiring power supply and demand information indicating the power supply and demand status of the energy generator or the power grid capable of transmitting and receiving power to and from the energy generator, and the power supply and demand acquisition stage.
The hydrogen supply and demand acquisition stage for acquiring hydrogen supply and demand information indicating the hydrogen supply and demand status in the energy generator, and the hydrogen supply and demand acquisition stage.
(I) Based on the power supply and demand status indicated by the power supply and demand information and (ii) the hydrogen supply and demand status indicated by the hydrogen supply and demand information, a response determination stage for determining whether or not to comply with the supply request. ,
Have,
Control method. In the response determination stage, the excess hydrogen supply indicated by the hydrogen supply and demand information satisfies the predetermined hydrogen excess condition, and the excess power supply indicated by the power supply and demand information satisfies the predetermined hydrogen supply condition. It has a step of deciding not to comply with the supply request if the excess condition is satisfied.
The control method according to claim 11. The supply request when the excess hydrogen supply indicated by the hydrogen supply and demand information does not satisfy the hydrogen excess condition and the excess power supply indicated by the power supply and demand information satisfies the power excess condition. Further has a step of deciding to comply with and not operating the power generation unit.
The control method according to claim 12. When the excess hydrogen supply indicated by the hydrogen supply and demand information satisfies the hydrogen excess condition, and the excess power supply indicated by the power supply and demand information satisfies the power excess condition, the hydrogen storage container or It further has a dispatch request transmission stage of transmitting a dispatch request requesting the dispatch of the mobile body to the provider of the service for dispatching the mobile body equipped with the storage battery.
13. The control method according to claim 13. A program for causing a computer to execute the control method according to any one of claims 11 to 14.

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