Dynamic modeling of proton exchange membrane fuel cell using non-integer derivatives

摘要: The modeling of proton exchange membrane fuel cells (PEMFC) may work as a powerful tool in the development and widespread testing alternative energy sources next decade. In order to obtain suitable PEMFC model, which can be used analysis cell-based power generation systems, it is necessary define values specific group parameters. this paper, authors propose dynamic model PEMFC, originality lays on use non-integer derivatives diffusion phenomena. This has advantage having least number parameters while being valid wide frequency range allows simulating an accurate response PEMFC. cell represented by equivalent circuit, whose components are identified with experimental technique electrochemical impedance spectroscopy (EIS). identification process applied commercially available air-breathing its relevance validated comparing simulations laboratory experiments. Finally, derived from fractional studied experimentally.