Dynamic modeling of proton-exchange-membrane fuel cell for double model control
质子交换膜燃料电池动态建模及其双模控制

Because the existing models of proton-exchange-membrane fuel cell(PEMFC) are not applicable to control, a dynamic model of PEMFC system is developed by using MATLAB/SIMULINK; and a two-model control scheme is proposed to control the output voltage of the PEMFC system. This control scheme combines a proportion-integraldifferential(PID) controller and a fuzzy logic controller(FLC) based on fuzzy switching rules. The simulation results demonstrate that the model reflects well the dynamic characteristic of the PEMFC system and is easy to be controlled. The scheme of two-model control based on fuzzy switching rule restrains the disturbance, improves the output performance, and ensures the stability of the PEMFC system. It facilitates the analysis of the output performance of a PEMFC and the design of a real-time control system.