Abstract
Advanced modeling tools are widely applied to enhance control strategies of proton exchange membrane fuel cells. Existing dynamic fuel cell models, however, still face a conflict between computational speed and simulation accuracy. To overcome this contradiction, a novel discretized fuel cell model is presented based on existing segmented modeling approaches. With a new twofold subdivision method and a newly designed interpolation algorithm, this model allows accurate investigation of the dynamic temperature, two-phase water, and current density distribution. Compared to the finite element method, the simulation duration of hours is reduced to minutes, while the characteristic of high-fidelity is maintained. Model validations are performed on both cell-level and stack-level to demonstrate the model's high accuracy and real-time simulation capability, illustrating the high potential for applying the model in the development of fuel cell control strategies.
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