Abstract

This paper focus on the constant voltage (CV) and constant current (CC) charging mode for rail transit energy storage by inductively coupled power transfer (ICPT) system. Firstly, the mathematical model of ICPT system based on LCC-S compensation network is established and analyzed, then a method of switching the parallel compensation capacitor of primary side to realize the switching of CV and CC charging mode is proposed in this paper, the zero voltage switching (ZVS) of MOSFETs can be realized in either CV or CC charging mode, and the method has the advantages of simple operation and high reliability. Finally, the simulation results are presented to verify the feasibility of the proposed method.

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