Research on Anode Emission Technology of Proton Exchange Membrane Fuel Cell System
Aiming at the fuel cell system gas-water separator′s own structural characteristics,as well as the problems existing in current commonly used integral drainage strategy of not being able to accurately judge the separator′s water level,and the low control accuracy and poor reliability of the system′s drainage strategy,the author integrates a liquid level sensor in the gas-water separator,which transforms the complex algorithmic control of the fuel cell system′s drainage valve into a simple switching control.After experimental verification,the range of anode pressure fluctuation of the system during drainage is small,the output performance of the electric stack is stable,and the hydrogen loss is low.The optimization method of the gas-water separator of the fuel cell system and its intermittent discharge strategy of the drainage valve is effective,which helps to further popularize the use of fuel cell vehicles.
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