Dynamic characteristics analysis of proton exchange membrane fuel cell based on mechanism model

Detailed analysis of the mechanism model of proton exchange membrane fuel cell(PEMFC) is carried out.On this basis,the simulation tool of Simulink in Matlab was adopted to establish a dynamic model of the PEMFC stack.Through the established dynamic simulation model,the effect of the main operating parameters on the dynamic output performance was analyzed.When current step change occurred,dynamic responses of output voltage,output power,consumed power,stack equivalent resistance and the efficiency of PEMFC stack were simulated.The simulation results are consistent with the data in available literatures.All this indicates that the stack model is correct,workable and effective.The research makes contribution to real-time analysis and dynamic optimization of PEMFC stack and provides help to promote the practical application of PEMFC.