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WU Rong, WANG Chao, ZHANG Shang, XU Lisha. Modeling and transmission efficiency analysis of three coil system for wireless power transmissio[J]. Journal of Mine Automation, 2015, 41(8): 89-92. DOI: 10.13272/j.issn.1671-251x.2015.08.022
Citation: WU Rong, WANG Chao, ZHANG Shang, XU Lisha. Modeling and transmission efficiency analysis of three coil system for wireless power transmissio[J]. Journal of Mine Automation, 2015, 41(8): 89-92. DOI: 10.13272/j.issn.1671-251x.2015.08.022
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Modeling and transmission efficiency analysis of three coil system for wireless power transmissio

  • School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

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    Abstract
  • Based on the theory of magnetic resonance coupling, a model of three coil system for wireless power transmission was established, and the transmission efficiency formula was derived by applying equivalent circuit theory and two port network theory. Cross coupling coefficient between transmitting and receiving coils was analyzed theoretically by using the formula. The theoretical analysis results show that the transmission efficiency of the system should decrease if cross coupling coefficient is large enough. The simulation results verify the correctness of the theoretical analysis.
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    XU Lisha

    • School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

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