An improved dynamic voltage model of PEM fuel cell stack |
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Authors: | Yongping Hou Zhihua YangGang Wan |
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Affiliation: | Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China |
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Abstract: | The voltage dynamic properties of PEM fuel cell stack have been analyzed through experimental investigation. Different behaviours between voltage overshoot and undershoot are found under load commutations. A semi-empirical dynamic model for stack voltage is introduced on the basis of experimental investigation. The proposed model can predict the transient response of stack voltage under step change in current. Comparing with previous model, the suggested model indicates a better agreement between tests and simulations. |
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Keywords: | PEM fuel cell stack Dynamic properties Semi-empirical model |
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