Research on Power-Efficiency Synchronization of Wireless Power Transfer via Magnetic Resonance Coupling
Tang Zhide1, Yang Fan1, Xu Yangyang2, Peng Yiling3
1.State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400030 China 2.State Grid Henan Electric Power Company Maintenance Company Zhengzhou 471000 China 3.State Grid Sichuan Luzhou Power Supply Company Luzhou 646000 China
Abstract In order to solve the problem of difficult implement of synchronization of maximum transfer efficiency and power in wireless power transmission system via magnetic resonance coupling,the power transmission system was analyzed by equivalent circuit theory,and the calculation method to optimal frequency of transfer efficiency and its power was proposed.The concept of optimal resonance frequency and power-efficiency synchronization factor was presented,and the synchronous condition to maximum transfer efficiency and power was given.By simulating,the varying regularity of the transfer efficiency and power with load changes was researched.The experimental platform was set up and the correctness of the theoretical analysis is proved by comparing the simulation results and measured data.Thus provides an useful reference for the further optimization of power-efficiency synchronization and the improvement of transfer efficiency and its power in wireless power transfer system.
Tang Zhide,Yang Fan,Xu Yangyang等. Research on Power-Efficiency Synchronization of Wireless Power Transfer via Magnetic Resonance Coupling[J]. Transactions of China Electrotechnical Society, 2017, 32(21): 161-168.
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2017, Vol. 32 
