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Hybrid modeling and control of ICPT system with synchronous three-phase triple-parallel Buck converter

Published online by Cambridge University Press:  28 January 2020

Songcen Wang
Affiliation:
China Electric Power Research Institute, Beijing100192, China
Xiaokang Wu
Affiliation:
China Electric Power Research Institute, Beijing100192, China
Ying Yang
Affiliation:
School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou221116, China
Cong Zhu
Affiliation:
School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou221116, China
Zhen Wu
Affiliation:
School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou221116, China
Chenyang Xia*
Affiliation:
School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou221116, China
*
Author for correspondence: Chenyang Xia, School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou221116, China. E-mail: bluesky198210@163.com

Abstract

Aiming at the influence of coupling coefficient variation on the output voltage of a high-power LCC-S topology inductively coupled power transfer (ICPT) system, a synchronous three-phase triple-parallel Buck converter is used as the voltage adjustment unit. The control method for the three-phase current sharing of synchronous three-phase triple-parallel Buck converter and the constant voltage output ICPT system under the coupling coefficient variation is studied. Firstly, the hybrid model consisting of the circuit averaging model of the three-phase triple-parallel Buck converter and the generalized state-space average model for the LCC-S type ICPT system is established. Then, the control methods for three-phase current sharing of the synchronous three-phase triple-parallel Buck converter and constant voltage output of ICPT system are studied to achieve the multi-objective integrated control of the system. Finally, a 3.3 kW wireless charging system platform is built, the experimental results have verified the effectiveness of the proposed modeling and control method, and demonstrated the stability of the ICPT system.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2020

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