An Anti-Offset Method under Flux-Sharing Multi-Coupling Mode for Wireless Power Transmission System
Zhang Xian1,2, Han Dawen3, Sha Lin3, Yang Qingxin1,2, Wang Fengxian1,2
1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology Tianjin 300131 China; 2. Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province Hebei University of Technology Tianjin 300131 China; 3. Key Laboratory of Intelligent Control of Electrical Equipment Tiangong University Tianjin 300387 China
Abstract：A method for integrating a reversed-polarity concentric compensating inductor based on the LCC topology is proposed from the perspective of shared flux, then two integrated structures are proposed. A mathematical model of the output power and transmission efficiency of the reversed-polarity concentric wireless power transmission system based on the multi-coupling mode of operation and the quality factor of the coil is developed, and the offset resistance of the integrated structure is verified from the mathematical model. The simulation results show that the integrated structure outperforms the non-integrated structure in terms of flux density in both forward and offset cases. The experimental prototype of the compensated inductor integrated structure is built. The experimental results show that the compensated inductor integrated structure can maintain stable transmission efficiency and output power within a certain offset range, and has higher transmission efficiency and higher transmission power than the non-integrated structure at the same input voltage and transmission distance.
张献, 韩大稳, 沙琳, 杨庆新, 王奉献. 一种共享磁通多耦合模式的无线电能传输系统抗偏移方法[J]. 电工技术学报, 2022, 37(21): 5359-5368.
Zhang Xian, Han Dawen, Sha Lin, Yang Qingxin, Wang Fengxian. An Anti-Offset Method under Flux-Sharing Multi-Coupling Mode for Wireless Power Transmission System. Transactions of China Electrotechnical Society, 2022, 37(21): 5359-5368.
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2022, Vol. 37 
