Dominik Köppel, Joel M. Edjokola, Merit Bodner, Amir M. Niroumand, Qingxin Zhang, Johannes Lackner, Stefan Jakubek, Christoph Hametner
Automotive fuel cells operate under highly dynamic conditions, where strongly coupled inlet gas states demand precise and reliable control. This study introduces a dynamic nonlinear exact input–output linearization approach, combined with a parametrized model, to decouple cathode inlet pressure and mass flow. A dynamic feedforward control scheme determines the input trajectories for peripheral components, enabling independent tracking of pressure and flow. The method is implemented in a two-degree-of-freedom architecture on a commercial Greenlight Innovation G60 testbed, supporting the execution of highly dynamic test cycles. Experimental validation on a single cell demonstrates significant improvements in dynamic gas conditioning compared to conventional control methods. These dynamic testing capabilities enhance diagnostics, accelerate stress protocols, and enable transient scenario emulation, advancing fuel cell development under realistic operating conditions.
International Journal of Hydrogen Energy
DOI: 10.1016/j.ijhydene.2025.151670
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