Dynamic Characteristic Modeling and Control of Proton Exchange Membrane Fuel Cell

To solve the problem that the current model of proton exchange membrane fuel cell(PEMFC) is hard to be used in the design of control systems,a dynamic model of PEMFC was established with Matlab-Simulink,and a fuzzy logic controller(FLC) was designed based on this dynamic model.The combined application of fuzzy control and proportion-integral-differential(PID) control was adopted to control the output voltage of a PEMFC system.The simulation results show that the established model can reflect the dynamic characteristic of PEMFC systems,and the combined technique of fuzzy control and PID control can restrain the disturbance to improve the output characteristic of PEMFC systems and ensure their stability.The proposed model can be utilized to design the real-time control system of PEMFC.