Parameter Optimization of Electric-Field Coupled Wireless Power Transfer System with Complementary Symmetric LCC Resonant Network
Su Yugang1,2, Wu Xueying2, Zhao Yuming2, Qing Xiaodong2, Tang Chunsen1,2
1. State Key Laboratory of Power Transmission Equipment & System Security and New TechnologyChongqing University Chongqing 400030 China; 2. College of Automation Chongqing University Chongqing 400030 China
Abstract Aiming at the problems of small transfer distance, large inductance and low transfer efficiency of the traditional electric-field coupled wireless power transfer (EC-WPT) system, a parameter design method of complementary symmetry LCC resonant is introduced in this paper based on an EC-WPT system with double-sided LC network. Taking the transfer efficiency as the objective function, an adaptive genetic algorithm with nonlinear programming is proposed to optimize the system frequency f and the ratio of the parallel resonant capacitor to the coupling capacitance k. Combined with the parameter define method, a set of system parameters that can satisfy zero phase angle (ZPA), low excitation voltage and small inductance are obtained under a certain transmission distance. The transfer efficiency is maximized when the system meets the required output power. The simulations and experiments verify the feasibility and effectiveness of the proposed optimization method.
Su Yugang,Wu Xueying,Zhao Yuming等. Parameter Optimization of Electric-Field Coupled Wireless Power Transfer System with Complementary Symmetric LCC Resonant Network[J]. Transactions of China Electrotechnical Society, 2019, 34(14): 2874-2883.
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2019, Vol. 34 
