We analyze the controllability and observability (C/O) of first principles-based numeric and reduced semi-analytic PEMFC models, with emphasis on the effects of model reduction on these analyses. The numeric model is a partial differential equation (PDE) based model approximated by difference equations, including both channels and both GDL of a PEMFC. The reduced model uses a semi-analytic solution (SAS) method, which is a combination of analytic and numeric solutions, gaining physical intuition at lower computational cost. The C/O analysis is based on linearizations around multiple operating points of the numeric and the semi-analytic models. The results indicate that stabilizability of the anode water states is possible.
- Dynamic Systems and Control Division
On Controllability and Observability of Linearized Liquid Water Distributions Inside a PEM Fuel Cell
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McCain, BA, Stefanopoulou, AG, & Butts, KR. "On Controllability and Observability of Linearized Liquid Water Distributions Inside a PEM Fuel Cell." Proceedings of the ASME 2008 Dynamic Systems and Control Conference. ASME 2008 Dynamic Systems and Control Conference, Parts A and B. Ann Arbor, Michigan, USA. October 20–22, 2008. pp. 385-392. ASME. https://doi.org/10.1115/DSCC2008-2155
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