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Experimental Validation of an Equivalent Dynamic Electrical Model for a Proton Exchange Membrane Electrolyzer

This paper presents an equivalent dynamic electrical model for a proton exchange membrane (PEM) electrolyzer. Through experimental investigation, the stack voltage curve for a 3-cell PEM electrolyzer has been modeled under dynamic operating conditions. The developed model is based on an equivalent dynamic electrical model taking into consideration the dynamic behavior of the PEM electrolyzer in case of sudden variations of the input current. The Simulink environment is used to develop the equivalent dynamic electrical model. The model is tested with experimental results. The first obtained results by using the developed model show a good accuracy in replicating the dynamic behavior of the electrolyzer.