A multidisciplinary design method and application for complex systems

A reasonable electrochemical mechanism model is the basis for accurately describing the actual operation of hydrogen fuel cell (HFC). In this paper, a multidisciplinary modeling and simulation method is proposed. Based on the internal electrochemical reaction kinetics and electrochemical thermodynamics mechanism of the HFC, a voltage output model and a back pressure regulation model are constructed. By analyzing the relationship between the back pressure of the anode and cathode of the HFC and the effective partial pressure of the reactant gas, a voltage output model and back pressure adjustment model are integrated to form an HFC electrochemical mechanism model, which realizes the dynamic and accurate description of the HFC output performance. The final experimental results show that the electrochemical mechanism model of the HFC can achieve good results.