The solar photovoltaic hydrogen production energy storage/fuel cell power generation system is composed of photovoltaic cell power generation, power distributor, hydrogen production unit, hydrogen storage unit, fuel cell, and inverter (see Figure 1). Among them, photovoltaic cell power generation, power distributor, and inverter are conventional equipment in the solar photovoltaic power generation system. It will not be repeated. Here, the hydrogen production unit, hydrogen storage unit, and fuel cell in this system are mainly introduced. Hydrogen unit " It can be various types of electrochemical hydrogen production methods, such as water electrolysis tanks that are currently widely used in industry or ion membrane hydrogen production methods that are technically mature. The hydrogen storage unit can use conventional high-pressure hydrogen storage steel cylinders or more advanced metal hydrogen storage devices. Fuel cells are a power generation device that directly converts chemical energy stored in fuel (HZ) and oxidants into electrical energy through electrode reactions, with an energy conversion efficiency of 55%. From the total reaction formula of proton exchange membrane fuel cells (PEMFCs), it can be seen that in addition to generating electricity, pure water is also discharged. Therefore, fuel cells are still a clean way of generating electricity.

Solar photovoltaic hydrogen production energy storage/fuel cell power generation system There are two types of operating forces: when there is sufficient sunlight, the photovoltaic cell will generate electricity at full power for a period of time. Due to the light or even no load during the day, all or part of the electricity generated by the photovoltaic cell will flow through the power distributor to the hydrogen production unit. The produced hydrogen is stored in the hydrogen storage unit, and when there is no sunlight or night, the fuel cell will use the stored hydrogen to generate electricity for the load to use. When there is insufficient sunlight, the electricity generated by the photovoltaic cell will When the electrical energy cannot meet the load's needs, the starting fuel cell power generation device and photovoltaic cell force simultaneously supply power to the load.

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