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FENG Fan,WANG Junfeng,WANG Guodong.Topological Analysis of Four-coil Resonant Wireless Power Transmission System[J].JOURNAL OF POWER SUPPLY,2018,16(6):131-136
Topological Analysis of Four-coil Resonant Wireless Power Transmission System
Received:July 31, 2016  Revised:March 09, 2018
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DOI:10.13234/j.issn.2095-2805.2018.6.131
Keywords:magnetic coupling  transmission efficiency  topology  four-coil
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FENG Fan School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo , China
WANG Junfeng School of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo , China wangjunfeng@hpu.edu.cn
WANG Guodong School of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo , China
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Abstract:
      Based on circuit theory, a four-coil wireless power transmission system model is established. The detailed formulas for the transmission efficiency and output power of four kinds of topological structures(i.e., series-series-series-series, parallel-series-series-series, series-series-series-parallel, and parallel-series-series-parallel) are given. Moreover, these four topological structures are simulated using MATLAB, and the effects of transmission distance, frequency, and load resistance on the system transmission efficiency and system output power are analyzed in detail. Results show that the series-series-series-series topology has obvious advantages in the case of low frequency, small load, and medium-distance transmission. However, the series-series-series-parallel topology has obvious advantages in the case of low frequency, heavy load and medium-and long-distance transmission.
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