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3. Research on electrical characteristics of state space modeling and parameter identifying of PEMFC

Author

Qi Zhidong, Shan Liang, Leng Boyang, Bian Huijuan, and Xu Shengyuan

Subjects
State-space representation, Control theory, State space, Equivalent circuit, Proton exchange membrane fuel cell, Subspace topology, Voltage, Mathematics
Abstract

In order to describe the dynamic characteristics of Proton Exchange Membrane Fuel Cell (PEMFC) more accurately, the fractional changes in equivalent circuit of PEMFC with the electrical double layer phenomenon are proposed in this paper. Based on fractional theory, the fractional order state space model of the equivalent circuit is established. And the unknown parameters of the state-space model are identified with subspace identification method. The simulation results show that the fractional order state space model established can reflect the actual voltage changes accurately.

Published
2015

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