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Multi-Load Mode Analysis for Electric Vehicle Wireless Supply System

Author

Listed:
  • Cheng Jiang

    (College of Automation, Chongqing University, Chongqing 400044, China)

  • Yue Sun

    (College of Automation, Chongqing University, Chongqing 400044, China)

  • Zhihui Wang

    (College of Automation, Chongqing University, Chongqing 400044, China)

  • Chunsen Tang

    (College of Automation, Chongqing University, Chongqing 400044, China)

Abstract

When electric vehicles (EVs) run on the wireless power supply coils, the multi-load working mode will appear, showing that that more than one EV is collecting energy from one coil. Aiming at the stability problem of multi-load mode, this paper mainly analyzes how the number of loads influences the system stability and defines the boundary condition of the load quantity. Meanwhile, an L -shaped coil structure and the T -shaped magnetic core structure are proposed to solve the problem of coil breakdown for high-power supply situations. The proposed structures effectively reduce the supply coils’ self-inductance on the premise of guaranteeing the power transfer, and ensure the security of the multi-load system. At last, the validity of theoretical analysis is verified by simulations and experiments.

Suggested Citation

  • Cheng Jiang & Yue Sun & Zhihui Wang & Chunsen Tang, 2018. "Multi-Load Mode Analysis for Electric Vehicle Wireless Supply System," Energies, MDPI, vol. 11(8), pages 1-11, July.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:8:p:1925-:d:159665
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    References listed on IDEAS

    as
    1. Xuezhe Wei & Zhenshi Wang & Haifeng Dai, 2014. "A Critical Review of Wireless Power Transfer via Strongly Coupled Magnetic Resonances," Energies, MDPI, vol. 7(7), pages 1-26, July.
    2. Longzhao Sun & Houjun Tang & Yingyi Zhang, 2015. "Determining the Frequency for Load-Independent Output Current in Three-Coil Wireless Power Transfer System," Energies, MDPI, vol. 8(9), pages 1-12, September.
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    Cited by:

    1. Mohamad Abou Houran & Xu Yang & Wenjie Chen, 2018. "Free Angular-Positioning Wireless Power Transfer Using a Spherical Joint," Energies, MDPI, vol. 11(12), pages 1-26, December.
    2. Bo Cheng & Jianghua Lu & Yiming Zhang & Guang Pan & Rakan Chabaan & Chunting Chris Mi, 2020. "A Metal Object Detection System with Multilayer Detection Coil Layouts for Electric Vehicle Wireless Charging," Energies, MDPI, vol. 13(11), pages 1-16, June.
    3. Osamu Shimizu & Sakahisa Nagai & Toshiyuki Fujita & Hiroshi Fujimoto, 2020. "Potential for CO 2 Reduction by Dynamic Wireless Power Transfer for Passenger Vehicles in Japan," Energies, MDPI, vol. 13(13), pages 1-16, June.

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