Abstract
The cold-start of proton exchange membrane fuel cell (PEMFC) has been one of the leading technical challenges for fuel cell vehicle commercialization. It is essential to understand the mechanism and process of a cold start to improve the cold start ability of the PEM fuel cell. In this study, a one-dimensional cold start transient model of PEMFC was developed for transfer species, heat, charge and water phase change during the cold start process. Based on the 1-D spatially distributed model, a reduced nonlinear cold-start model of the PEMFC is presented. Then the parameter identification is conducted to validate the model accuracy based on the experiment data. The identification result shows that the reduced model captures the detailed model's multiplicity behaviours, and good agreement is observed during cold start simulation with experiment results. In contrast, the computation time is reduced significantly. Thus, the proposed order reduction model can be used to investigate real-time estimation and develop model-based control strategies for automotive PEMFC cold start.
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