Fuzzy Adaptive PI Decoupling Control for Gas Supply System of Proton Exchange Membrane Fuel Cell

Aiming at the issues of nonlinear and strong coupling between hydrogen partial pressure and oxygen partial pressure in a proton exchange membrane fuel cell (PEMFC) and the poor control effect of traditional PID method, a fuzzy adaptive PID decoupling control method with simple rules is proposed in this paper. A fuzzy control algorithm is used to realize the adaptive adjustment of PID parameters online and the decoupling of the PEMFC gas supply system. According to the model established, the PEMFC gas supply system with fuzzy adaptive PID decoupling control is simulated. Simulation results show that the proposed control strategy can effectively reduce the pressure difference between hydrogen and oxygen supplies, prevent the PEMFC from degradation, and improve the output performance and lifetime of PEMFC.