Analysis and Control of Optimal Power Distribution for Multi-Objective Wireless Charging Systems

Zhen Zhang, Ruilin Tong, Zhenyan Liang, Chunhua Liu and Jiang Wang
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Zhen Zhang: School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
Ruilin Tong: School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
Zhenyan Liang: School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
Chunhua Liu: School of Energy and Environment, City University of Hong Kong, Hong Kong, China
Jiang Wang: School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China

Energies, 2018, vol. 11, issue 7, 1-16

Abstract: This paper proposes an optimal power distribution method for multi-objective wireless power transfer (WPT) systems, aiming to improve the transmission flexibility and satisfy various power demands. Previous studies have barely explored the impact of wide-range and unpredictable variations of load parameters on the performance of multi-channel power transmissions. In this paper, by taking the impact of equivalent impedance, motion, power demand variation and response speed of charging object into consideration, an optimal power distribution scheme with fast response, high stability and high accuracy is proposed to satisfy various power demands from multiple objectives including portable electronics, moving electric vehicles (EVs), batteries and super capacitors, without using any communication networks. The effectiveness of the proposed control scheme is demonstrated by simulation results based on different charging cases and experimental results based on a 10 W prototype.

Keywords: contactless charging; electric vehicle (EV); wireless power transfer (WPT) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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