Review on control strategy for gas supply system with automotive proton exchange membrane fuel cell

ObjectiveThis study comprehensively investigated the research status and evolution trends of control strategies for gas supply system with proton exchange membrane fuel cell (PEMFC). A large number of representative papers published in core databases at home and abroad in recent years were reviewed.MethodThis study adopted bibliometric analysis method. First, it comprehensively reviewed the research status and progress of key control technologies for gas supply system with PEMFC from two aspects, i.e., anode hydrogen supply system and cathode air supply system. Second, the principles and characteristics of various control methods were introduced. The implementation stages and limitations of these control strategies were summarized in a list. Finally, the critical research directions for future commercialization of PEMFC power systems were prospected.ResultThe classical feedforward + PID feedback structure is the most frequently adopted strategy by research fellows, followed by the improved PID controllers employing different tuning methods and combining with fuzzy logic control. In addition, model predictive control, sliding mode control, adaptive control, robust control and active disturbance rejection control have all been implemented in PEMFC gas supply system control. With the rise of artificial intelligence algorithms, intelligent control strategies have also begun to attract research fellows' attention, e.g., neural network control and deep reinforced learning control.ConclusionMost of the reported control methods have only been validated at the simulation level, and the actual control effect still needs further study. Elucidating the coupling effects among PEMFC materials, stacks, subsystems and control strategies will be the crucial direction for future development.