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.
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2019, Vol. 34 
