WO2019021751A1 - Dispositif de génération d'énergie, dispositif de commande, et programme de commande - Google Patents

Dispositif de génération d'énergie, dispositif de commande, et programme de commande Download PDF

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Publication number
WO2019021751A1
WO2019021751A1 PCT/JP2018/025100 JP2018025100W WO2019021751A1 WO 2019021751 A1 WO2019021751 A1 WO 2019021751A1 JP 2018025100 W JP2018025100 W JP 2018025100W WO 2019021751 A1 WO2019021751 A1 WO 2019021751A1
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WIPO (PCT)
Prior art keywords
power generation
reformer
generation device
supplied
fuel gas
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PCT/JP2018/025100
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English (en)
Japanese (ja)
Inventor
亮 後藤
毅史 山根
泰孝 秋澤
信裕 小林
真紀 末廣
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京セラ株式会社
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Priority to JP2019532466A priority Critical patent/JPWO2019021751A1/ja
Publication of WO2019021751A1 publication Critical patent/WO2019021751A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • H01M8/04225—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during start-up
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the present disclosure relates to a power generation device, a control device, and a control program.
  • Some power generating apparatuses provided with a fuel cell such as a solid oxide fuel cell (Solid Oxide Fuel Cell (hereinafter referred to as SOFC)) and the like include a reformer.
  • the reformer is supplied with the raw fuel gas and the reforming water to generate a fuel gas such as hydrogen (see, for example, Patent Document 1).
  • a power generation device includes a reformer that is supplied with a raw fuel gas and reforming water to generate a fuel gas, and a fuel that generates electric power using the fuel gas supplied from the reformer.
  • a battery and a control unit are provided.
  • the control unit changes the timing before the raw fuel gas is supplied to the reformer.
  • Supply quality water The control unit is configured to supply the raw fuel gas to the reformer when the temperature of the predetermined position in the power generation device is less than the first predetermined temperature when the power generation device is started. Supply reformed water.
  • a control device is a reformer that is supplied with raw fuel gas and reforming water to generate a fuel gas, and a fuel that generates electric power using the fuel gas supplied from the reformer. And a battery.
  • the control device changes the timing before the raw fuel gas is supplied to the reformer. Supply quality water.
  • the controller supplies the raw fuel gas to the reformer when the temperature of the predetermined position in the power generation device is less than the first predetermined temperature when the power generation device is started. Supply reformed water.
  • a control program includes a reformer that is supplied with raw fuel gas and reforming water to generate a fuel gas, and a fuel that generates electricity using the fuel gas supplied from the reformer. And a control program for a control device that controls a power generation device including the battery.
  • the control program supplies the raw fuel gas to the reformer when the temperature of a predetermined position in the power generation device is equal to or higher than a first predetermined temperature when the power generation device is started, to the control device. Before the step of supplying the reformed water.
  • the control program causes the control device to set the raw fuel gas to the reformer when the temperature of the predetermined position in the power generation device is less than the first predetermined temperature when the power generation device is started. And the step of supplying the reforming water.
  • the present disclosure relates to providing a power generation device, a control device, and a control program that can appropriately control the supply of raw fuel gas and reforming water to a reformer when the power generation device is started.
  • a control device and a control program that can appropriately control the supply of raw fuel gas and reforming water to a reformer when the power generation device is started.
  • FIG. 1 is a functional block diagram schematically showing a configuration of a power generation device 1 according to an embodiment of the present disclosure.
  • a power generation device 1 As shown in FIG. 1, a power generation device 1 according to an embodiment of the present disclosure is connected to a hot water storage tank 60, a load 100, and a commercial power supply (grid) 200. Further, as shown in FIG. 1, the power generation device 1 generates electric power by supplying gas, water, and air from the outside, and supplies the generated electric power to a load 100 or the like.
  • the power generation apparatus 1 includes a control unit 10, a storage unit 12, a fuel cell module 20, a gas supply unit 32 for supplying a raw fuel gas, a reforming water supply unit 34, and oxygen.
  • the air supply unit 36 for supplying air as a gas, an inverter 40, a combustion catalyst 42, a combustion catalyst heater 44, an exhaust heat recovery processing unit 50, a circulating water processing unit 52, and a bubble sensor 80 are provided.
  • the power plant 1 includes at least one processor as a controller 10 to provide control and processing capabilities to perform various functions, as will be described in more detail below.
  • the at least one processor may also be implemented as a single integrated circuit (IC) or as a plurality of communicatively coupled integrated circuits and / or discrete circuits. Good.
  • the at least one processor can be implemented according to various known techniques.
  • a processor includes one or more circuits or units configured to perform one or more data calculation procedures or processes.
  • the processor may be one or more processors, controllers, microprocessors, microcontrollers, application specific integrated circuits (ASICs), digital signal processors, programmable logic devices, field programmable gate arrays, or any of these devices or configurations.
  • ASICs application specific integrated circuits
  • digital signal processors programmable logic devices, field programmable gate arrays, or any of these devices or configurations.
  • the functions described below may be performed by including a combination or a combination of other known devices or configurations.
  • the control unit 10 is connected to the storage unit 12, the fuel cell module 20, the gas supply unit 32, the reforming water supply unit 34, the air supply unit 36, the inverter 40, and the combustion catalyst heater 44. And control and manage the whole of the power generation device 1 including the respective functional units.
  • the control unit 10 acquires a program stored in the storage unit 12 and executes the program to realize various functions related to each unit of the power generation device 1.
  • the control unit 10 and the other functional units may be connected by wire or wirelessly. The control characteristic of the present embodiment performed by the control unit 10 will be further described later.
  • the storage unit 12 stores the information acquired from the control unit 10.
  • the storage unit 12 also stores programs and the like executed by the control unit 10.
  • the storage unit 12 also stores various data such as calculation results by the control unit 10, for example.
  • the storage unit 12 will be described below as being capable of including a work memory and the like when the control unit 10 operates.
  • the storage unit 12 can be configured by, for example, a semiconductor memory or a magnetic disk, but is not limited to these and can be any storage device.
  • the storage unit 12 may be an optical storage device such as an optical disk, or may be a magneto-optical disk.
  • the fuel cell module 20 includes a reformer 22, a cell stack 24, an ignition heater 26, a first temperature sensor 71, and a second temperature sensor 72.
  • the cell stack 24 of the fuel cell module 20 generates power using the fuel gas supplied from the reformer 22 and the air that is the oxygen-containing gas supplied from the air supply unit 36.
  • the fuel gas contains, for example, hydrogen.
  • the DC power generated in the fuel cell module 20 is output to the inverter 40.
  • the fuel cell module 20 is also referred to as a hot module.
  • the cell stack 24 generates heat as power is generated.
  • the cell stack 24 that actually generates power is appropriately referred to as a “fuel cell”.
  • any functional unit including the cell stack 24 may also be collectively referred to as a “fuel cell” as appropriate.
  • a fuel cell a single cell, a fuel cell module, etc. are mentioned to others.
  • the reformer 22 uses, for example, the fuel such as hydrogen and / or carbon monoxide, using the raw fuel gas supplied from the gas supply unit 32 and the reforming water supplied from the reforming water supply unit 34. Generate gas.
  • the reformer 22 generates steam using the reforming water supplied from the reforming water supply unit 34.
  • the reformer 22 generates a fuel gas such as hydrogen and / or carbon monoxide by using the raw fuel gas supplied from the gas supply unit 32 by steam reforming using the generated steam.
  • the cell stack 24 generates power by reacting a fuel gas such as hydrogen and / or carbon monoxide generated by the reformer 22 with oxygen in the air. That is, in the present embodiment, the cell stack 24 generates power by an electrochemical reaction.
  • the ignition heater 26 as an ignition device burns around the cell stack 24 and the cell stack 24 at the time of starting the power generation device 1 or the like.
  • the ignition heater 26 ignites the fuel gas discharged from the cell stack 24 without being used for power generation.
  • the first temperature sensor 71 is installed near the outlet of the reformer 22, and detects the temperature near the outlet of the reformer 22.
  • the first temperature sensor 71 may detect the temperature of the reformer 22 other than the vicinity of the outlet of the reformer 22.
  • the second temperature sensor 72 is disposed near the center of the cell stack 24 and detects the temperature near the center of the cell stack 24.
  • the second temperature sensor 72 may detect the temperature of the cell stack 24 other than near the center of the cell stack 24.
  • the first temperature sensor 71 and the second temperature sensor 72 can be configured by, for example, a thermocouple.
  • the first temperature sensor 71 and the second temperature sensor 72 are not limited to the thermocouples, and any member that can measure the temperature can be adopted.
  • the first temperature sensor 71 and the second temperature sensor 72 may be thermistors or platinum temperature measuring resistors.
  • the cell stack 24 will be described as being an SOFC (solid oxide fuel cell).
  • the cell stack 24 according to the present embodiment is not limited to the SOFC.
  • the cell stack 24 according to the present embodiment includes, for example, a polymer electrolyte fuel cell (PEFC), a phosphoric acid fuel cell (Phosphoric Acid Fuel Cell (PAFC)), and a molten carbonate fuel cell (PEFC). It may be configured by a fuel cell such as Molten Carbonate Fuel Cell (MCFC).
  • PEFC polymer electrolyte fuel cell
  • PAFC phosphoric Acid Fuel Cell
  • PEFC molten carbonate Fuel Cell
  • MCFC Molten Carbonate Fuel Cell
  • the cell stack 24 may not be included in the same casing as the reformer 22, and includes the fuel cell module 20 as described above. It does not have to be.
  • the cell stack 24 and the reformer 22 may or may not be located in the same casing.
  • the cell stack 24 may be provided with, for example, four cells that can generate about 700 W alone.
  • the fuel cell module 20 can output power of about 3 kW as a whole.
  • the cell stack 24 and the fuel cell module 20 according to the present embodiment are not limited to such a configuration, and various configurations can be adopted.
  • the fuel cell module 20 according to the present embodiment may have only one cell stack 24.
  • the power generation device 1 may be provided with a fuel cell that generates power using gas. Therefore, for example, the power generation device 1 can be assumed to have only one fuel battery cell as the fuel cell, not the cell stack 24.
  • the fuel cell according to the present embodiment may be a fuel cell without a module, such as PEFC.
  • the gas supply unit 32 supplies the raw fuel gas to the reformer 22 of the fuel cell module 20.
  • raw fuel gas is also simply referred to as "gas” as appropriate.
  • the gas supply unit 32 controls the flow rate of the gas supplied to the reformer 22 based on the control signal from the control unit 10.
  • the gas supply unit 32 can be configured by, for example, a gas pump or the like.
  • the gas supply unit 32 may perform desulfurization treatment of the gas, or may preheat the gas.
  • the exhaust heat of the cell stack 24 may be used as a heat source to heat the gas.
  • the gas is, for example, city gas or LPG, but is not limited thereto.
  • the gas may be natural gas or coal gas depending on the fuel cell.
  • the reforming water supply unit 34 supplies reforming water to the reformer 22 of the fuel cell module 20. At this time, the reforming water supply unit 34 controls the flow rate of the reforming water supplied to the reformer 22 based on the control signal from the control unit 10.
  • the reforming water supply unit 34 can be configured by, for example, a reforming water pump or the like.
  • the reforming water supply unit 34 may generate reforming water using water recovered from the exhaust of the cell stack 24 as a raw material.
  • the air supply unit 36 supplies air to the cell stack 24 of the fuel cell module 20. At this time, the air supply unit 36 controls the flow rate of air supplied to the cell stack 24 based on the control signal from the control unit 10.
  • the air supply unit 36 can be configured by, for example, an air blower or the like. Alternatively, the air supply unit 36 may preheat the air taken from the outside and supply the air to the cell stack 24. The exhaust heat of the cell stack 24 may be used as a heat source to heat the air. In the present embodiment, the air supply unit 36 supplies air used for an electrochemical reaction when the cell stack 24 generates power.
  • the gas supplied by the air supply unit 36 is not limited to air, and may be any gas that can generate electric power by reacting with a fuel gas such as hydrogen. For example, the air supply unit 36 may supply a gas other than air containing oxygen.
  • the inverter 40 is electrically connected to the cell stack 24 in the fuel cell module 20.
  • the inverter 40 converts the DC power generated by the cell stack 24 into AC power.
  • the AC power output from the inverter 40 is supplied to the load 100 via a distribution board or the like.
  • the load 100 receives the power output from the inverter 40 via a distribution board or the like.
  • the load 100 is illustrated as only one member in FIG. 1, it may be any number of various electrical devices that configure the load.
  • the load 100 can also receive power from the commercial power supply 200 via a distribution board or the like.
  • the combustion catalyst 42 burns the unburned gas contained in the exhaust gas generated by the power generation of the cell stack 24.
  • the combustion catalyst 42 burns carbon monoxide, which is an unburned gas, to carbon dioxide.
  • the combustion catalyst 42 can burn unburned gas when the temperature is equal to or higher than a predetermined temperature.
  • the combustion catalyst 42 may include, for example, a honeycomb catalyst in which a noble metal catalyst is applied to a honeycomb structure.
  • the noble metal catalyst may contain, for example, platinum and palladium.
  • the combustion catalyst heater 44 heats the exhaust flowing from the cell stack 24 to the combustion catalyst 42.
  • the exhaust heat recovery processing unit 50 recovers exhaust heat from the exhaust generated by the power generation of the cell stack 24.
  • the exhaust heat recovery processing unit 50 can be configured by, for example, a heat exchanger or the like.
  • the exhaust heat recovery processing unit 50 is connected to the circulating water processing unit 52 and the hot water storage tank 60.
  • the circulating water processing unit 52 circulates water from the hot water storage tank 60 to the exhaust heat recovery processing unit 50.
  • the water supplied to the exhaust heat recovery processing unit 50 is heated by the exhaust heat recovered by the exhaust heat recovery processing unit 50 and returns to the hot water storage tank 60.
  • the exhaust heat recovery processing unit 50 discharges the exhaust that has recovered the exhaust heat to the outside.
  • the hot water storage tank 60 is connected to the exhaust heat recovery processing unit 50 and the circulating water processing unit 52.
  • the hot water storage tank 60 can store hot water generated using exhaust heat recovered from the cell stack 24 of the fuel cell module 20 or the like.
  • the bubble sensor 80 detects bubbles in the reforming water supplied from the reforming water supply unit 34 to the reformer 22 of the fuel cell module 20 through the pipe 85.
  • the bubble sensor 80 detects an air bubble in the reforming water flowing through the pipe 85 by, for example, passing an alternating current between two electrodes and detecting a change in magnitude of the alternating current.
  • the air bubble sensor 80 may be configured to detect air bubbles using, for example, ultrasonic waves or microwaves.
  • the control unit 10 supplies the gas from the gas supply unit 32 to the reformer 22 and turns the reforming water supply unit 34 to the reformer 22 when the ignition heater 26 is turned on at the start of the power generation device 1. Start supplying reformed water. At this time, based on the temperature near the outlet of the reformer 22 acquired from the first temperature sensor 71, the control unit 10 determines which of the gas and the reforming water is to be supplied to the reformer 22 first. .
  • the control unit 10 supplies reforming water to the reformer 22 before supplying the raw fuel gas to the reformer 22 when the temperature near the outlet of the reformer 22 is equal to or higher than the first predetermined temperature.
  • the gas supply unit 32 and the reforming water supply unit 34 are controlled.
  • control unit 10 supplies the raw fuel gas to the reformer 22 and then supplies the reforming water to the reformer 22.
  • the gas supply unit 32 and the reforming water supply unit 34 are controlled.
  • the case where the temperature near the outlet of the reformer 22 is equal to or higher than the first predetermined temperature is referred to as “in the case of a hot start”, and the temperature near the outlet of the reformer 22 is less than the first predetermined temperature. Is also referred to as "cold start case”.
  • the control unit 10 determines whether it is a hot start or a cold start based on the temperature near the outlet of the reformer 22, but the temperature measurement location is It is not limited. Based on the temperature of any predetermined position in the power generation device 1, it may be determined whether it is a hot start or a cold start. As the first predetermined temperature, an appropriate temperature may be set in advance according to the measurement location.
  • the cell stack 24 has a characteristic that it becomes difficult to ignite if reforming water is first supplied to the reformer 22 in a state where the temperature is low.
  • the control unit 10 of the power generation device 1 supplies reforming water to the reformer 22 before supplying the raw fuel gas.
  • the control unit 10 can prevent the state in which only the raw fuel gas is supplied, and thus can suppress carbon deposition. Further, since the temperature is high in the case of hot start, even if the reforming water is supplied first, the cell stack 24 can be ignited without any problem.
  • control unit 10 supplies the raw fuel gas and then supplies the reforming water to the reformer 22.
  • the control unit 10 can prevent the cell stack 24 from becoming difficult to ignite at low temperature.
  • temperature since the temperature is low, carbon deposition does not occur even if only the raw fuel gas is supplied first.
  • the controller 10 ensures that reforming water is supplied to the reformer 22 earlier than the gas, so that the reforming is performed a predetermined time earlier than when the supply of the gas is started.
  • Supply of water to the reformer 22 is started.
  • the control unit 10 sets the time in which the amount of reforming water corresponding to the volume of the pipe 85 from the air bubble sensor 80 to the reformer 22 can be supplied to the reformer 22 as a predetermined time.
  • Supply of reforming water to the reformer 22 is started.
  • the control unit 10 can grasp that at least the pipe 85 in front of the air bubble sensor 80 has the reforming water.
  • the control unit 10 can reliably supply the reforming water that has reached the bubble sensor 80 to the reformer 22 before the gas.
  • the present invention is not limited to this content, for example, the gas may be supplied after all the reforming water remaining in the pipe 85 enters the reformer 22.
  • the control unit 10 acquires the temperature in the vicinity of the outlet of the reformer 22 from the first temperature sensor 71 when the power generation device 1 is started (step S101).
  • the control unit 10 determines whether the temperature near the outlet of the reformer 22 is equal to or higher than a first predetermined temperature (step S102).
  • control unit 10 improves the reforming water before supplying the gas to the reformer 22.
  • the gas supply unit 32 and the reforming water supply unit 34 are controlled so as to be supplied to 22 (step S103).
  • control unit 10 supplies the gas to the reformer 22, and then the reforming water is reformed by the reformer 22.
  • the gas supply unit 32 and the reforming water supply unit 34 are controlled so as to be supplied to (step S104).
  • the control unit 10 supplies the raw fuel gas to the reformer 22. Reforming water is supplied, and if the temperature near the outlet of the reformer 22 is less than the first predetermined temperature, the reforming water is supplied to the reformer 22 after the raw fuel gas is supplied. Thereby, in the case of hot start, carbon deposition can be prevented. In addition, in the case of cold start, it is possible to prevent the cell stack from becoming difficult to ignite.
  • the power generation device 1 can appropriately control the supply of the raw fuel gas and the reforming water to the reformer 22 when the power generation device 1 is started.
  • the control unit 10 supplies the gas so as to stop the supply of the gas and the reforming water to the reformer 22 when the ignition of the power generation device 1 fails after the gas and the reforming water are supplied to the reformer 22.
  • the unit 32 and the reforming water supply unit 34 are controlled.
  • the control unit 10 stops the supply of the reforming water, the preheating effect by the ignition heater 26 or the ease of ignition can be enhanced. That is, the temperature around the cell stack 24 and the cell stack 24 can be efficiently raised by the ignition heater 26. Therefore, it is possible to shorten the waiting time until the ignition processing is performed again.
  • the control unit 10 waits for a predetermined time after the ignition failure, and then executes the ignition processing again. If it is a hot start, the reforming water is supplied to the reformer 22 before the gas is supplied to the reformer 22.
  • the gas supply unit 32 and the reforming water supply unit 34 are controlled to be supplied.
  • control unit 10 supplies the reforming water to the reformer 22 before the gas. Thereby, carbon deposition can be suppressed.
  • the control unit 10 stops the start processing of the power generation device 1 when the ignition processing fails continuously a predetermined number of times (for example, three times).
  • the control unit 10 When the control unit 10 receives an instruction to start stop processing before supplying reforming water to the reformer 22 during start-up of the power generation device 1 in the case of hot start, the reforming water is reformed by the reforming device 22. Start the stop process. This is because in the stop process, as described later, gas may be supplied from the gas supply unit 32 to the reformer 22. In the case of hot start, carbon deposition occurs when the gas is supplied without supplying reforming water. Thus, the control unit 10 starts the stopping process after supplying the reforming water to the reformer 22. By doing this, carbon deposition can be suppressed.
  • control unit 10 When the control unit 10 receives an instruction to start the stop process during start-up of the power generation device 1 in the case of hot start (step S201), the control unit 10 determines whether reforming water has already been supplied to the reformer 22 or not. (Step S202).
  • step S203 When reforming water has already been supplied to the reformer 22 (Yes in step S202), the control unit 10 starts the stop processing of the power generation device 1 as it is (step S203).
  • control unit 10 starts the stop process of the power generation device 1 after supplying the reforming water to the reformer 22 (step S204).
  • the control unit 10 supplies gas from the gas supply unit 32 to the reformer 22 when the temperature near the center of the cell stack 24 is higher than the second predetermined temperature in the stop processing. This is because the control unit 10 supplies air from the air supply unit 36 to the cell stack 24 in the stop processing, but when the temperature near the center of the cell stack 24 is equal to or higher than the second predetermined temperature, reduction of the cell stack 24 is performed. When the pole is exposed to air, the cell stack 24 is degraded due to re-oxidation.
  • control unit 10 causes the gas supply unit 32 to supply the gas to the reformer 22, air is less likely to touch the reduction electrode, so that the deterioration of the cell stack 24 can be suppressed.
  • the control unit 10 may determine whether or not to supply gas at the time of the stop processing based on the temperature of any predetermined position near the fuel cell, not limited to the temperature near the center of the cell stack 24. As the second predetermined temperature, an appropriate temperature may be set in advance according to the measurement location.
  • control unit 10 When the control unit 10 starts the stop processing, the control unit 10 acquires the temperature near the center of the cell stack 24 from the second temperature sensor 72 (step S301).
  • the control unit 10 determines whether the temperature near the center of the cell stack 24 is higher than a second predetermined temperature (step S302).
  • control unit 10 causes the gas supply unit 32 to supply the gas to the reformer 22 (step S303).
  • control unit 10 does not supply gas from the gas supply unit 32 to the reformer 22 (step S304).
  • the embodiment of the present disclosure can also be realized as a configuration in which functional blocks corresponding to the control unit 10 and the storage unit 12 of the power generation device 1 shown in FIG. 1 are provided outside the power generation device 1.
  • FIG. 5 An example of such an embodiment is shown in FIG.
  • the control device 2 that controls the power generation device 1 from the outside includes a control unit 10 and a storage unit 12.
  • the functions of the control unit 10 and the storage unit 12 of the control device 2 shown in FIG. 5 are respectively equivalent to the functions of the control unit 10 and the storage unit 12 of the power generation device 1 shown in FIG.
  • the embodiment of the present disclosure can also be realized as, for example, a control program that is executed by the control device 2 illustrated in FIG.
  • each functional unit, each means, the functions included in each step, and the like can be rearranged so as not to be logically contradictory, and a plurality of functional units and steps are combined or divided into one. It is possible.
  • each embodiment of the present invention mentioned above is not limited to carrying out faithfully to each embodiment described respectively, and combines each feature suitably, or carries out by omitting a part. It can also be done.
  • the power generation device 1 including the cell stack 24 that is SOFC has been described as the present embodiment.
  • the power generation device 1 according to the present embodiment is not limited to one including an SOFC, and may include various fuel cells such as a PEFC without a module.
  • fuel cell means, for example, a power generation system, a power generation unit, a fuel cell module, a hot module, a cell stack, or a cell.
  • the “fuel cell” in the present disclosure may be a fuel cell mounted on a fuel cell vehicle.

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  • Hydrogen, Water And Hydrids (AREA)

Abstract

Ce dispositif de génération d'énergie est équipé d'un reformeur qui est alimenté en gaz combustible brut et en eau de reformage et qui génère un gaz combustible à partir de celui-ci, d'une pile à combustible qui génère de l'énergie à l'aide du gaz combustible provenant du reformeur, et d'une unité de commande. Dans les cas où, pendant l'activation du dispositif de génération d'énergie, la température à une position prescrite dans le dispositif de génération d'énergie est une première température prescrite ou une température supérieure, l'unité de commande envoie l'eau de reformage dans reformeur avant d'envoyer le gaz combustible brut, et dans les cas où la température à ladite position prescrite à l'intérieur du dispositif de génération d'énergie est inférieure à la première température prescrite, l'unité de commande envoie l'eau de reformage dans le reformeur après avoir envoyé le gaz combustible brut.
PCT/JP2018/025100 2017-07-27 2018-07-02 Dispositif de génération d'énergie, dispositif de commande, et programme de commande WO2019021751A1 (fr)

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CN112201818A (zh) * 2020-08-28 2021-01-08 广西玉柴机器股份有限公司 一种燃料电池系统冷启动失败保护电堆的控制策略
JP7439622B2 (ja) 2020-04-02 2024-02-28 株式会社アイシン 燃料電池システム

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JP2005044621A (ja) * 2003-07-22 2005-02-17 Matsushita Electric Ind Co Ltd 燃料電池発電装置とその運転方法
JP2005170784A (ja) * 2003-11-20 2005-06-30 Matsushita Electric Ind Co Ltd 水素発生装置及びその運転方法ならびに燃料電池発電システム
JP2005317405A (ja) * 2004-04-30 2005-11-10 Kyocera Corp 燃料電池構造体の運転方法
JP2012069390A (ja) * 2010-09-24 2012-04-05 Toto Ltd 燃料電池システム
JP2014101257A (ja) * 2012-11-21 2014-06-05 Toshiba Fuel Cell Power Systems Corp 燃料処理装置およびその運転方法

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JP2005044621A (ja) * 2003-07-22 2005-02-17 Matsushita Electric Ind Co Ltd 燃料電池発電装置とその運転方法
JP2005170784A (ja) * 2003-11-20 2005-06-30 Matsushita Electric Ind Co Ltd 水素発生装置及びその運転方法ならびに燃料電池発電システム
JP2005317405A (ja) * 2004-04-30 2005-11-10 Kyocera Corp 燃料電池構造体の運転方法
JP2012069390A (ja) * 2010-09-24 2012-04-05 Toto Ltd 燃料電池システム
JP2014101257A (ja) * 2012-11-21 2014-06-05 Toshiba Fuel Cell Power Systems Corp 燃料処理装置およびその運転方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7439622B2 (ja) 2020-04-02 2024-02-28 株式会社アイシン 燃料電池システム
CN112201818A (zh) * 2020-08-28 2021-01-08 广西玉柴机器股份有限公司 一种燃料电池系统冷启动失败保护电堆的控制策略

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