Fundamental Research on Control Method for Power Conversion Circuit of Wireless In-Wheel Motor using Magnetic Resonance Coupling

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  • Gunji Daisuke
    Graduate School of Frontier Sciences, The University of Tokyo NSK Ltd. Development Department 2
  • Imura Takehiro
    Graduate School of Frontier Sciences, The University of Tokyo
  • Fujimoto Hiroshi
    Graduate School of Frontier Sciences, The University of Tokyo

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  • 磁界共振結合によるワイヤレスインホイールモータの電力変換回路の制御に関する基礎研究
  • ジカイ キョウシン ケツゴウ ニ ヨル ワイヤレスインホイールモータ ノ デンリョク ヘンカン カイロ ノ セイギョ ニ カンスル キソ ケンキュウ
  • Fundamental Research on Control Method for Power Conversion Circuit of Wireless In‐Wheel Motor Using Magnetic Resonance Coupling

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The in-wheel motor (IWM) is the most preferred driving mechanism of electric vehicles for its advantages of vehicle motion control, energy efficiency, and vehicle design flexibility. One of the technical problems of the IWM is the reliability of power and the signal wires. Wireless power transfer technology is the best solution to this problem. In this paper, a bidirectional wireless power transfer circuit using a primary inverter and a secondary converter is proposed. We propose a control method for both the inverter and the converter to stabilize the secondary DC-link voltage. The proposed method is verified by simulation and experiment using simulated test equipment.

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