This paper analyzes the working mechanism of each components of the proton exchange membrane fuel cell(PEMFC)system,and the mathematical mechanism models of stack,anode,cathode,proton exchange membrane,and temperature of the PEMFC are established using MATLAB/Simulink software,furthermore,the physical model of thermal management system is built in the Simulink/Simscape environment,and the mathematical and physical models are integrated into a complete PEMFC system simulation model.Typical malfunctions,including the radiator fan failure and insufficient coolant flow failure,are injected into the PEMFC system simulation model to analyze the influence of malfunctions on the performance of PEMFC.The simulation results are basically consistent with the experimental results,which indicates that the proposed model is reasonable and accurate.Moreover,the generation mechanism of malfunctions is figured out through malfunction simulation of the thermal management system,which provides a reference for malfunction diagnosis.
维普
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