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A Witricity-Based High-Power Device for Wireless Charging of Electric Vehicles

Author

Listed:
  • Zhongyu Dai

    (School of Electrical Engineering, Wuhan University, Wuhan 430072, China)

  • Junhua Wang

    (School of Electrical Engineering, Wuhan University, Wuhan 430072, China)

  • Mengjiao Long

    (School of Electrical Engineering, Wuhan University, Wuhan 430072, China)

  • Hong Huang

    (School of Electrical Engineering, Wuhan University, Wuhan 430072, China)

Abstract

In this paper, a Witricity-based high-power device is proposed for wireless charging of electric vehicles. According to the specific requirements of three-stage charging for electric vehicles, four compensation modes of the Witricity system are analyzed by the Loosely Coupled Theory among transformer coils and the Substitution Theorem in circuit theory. In addition, when combining voltage withstand levels, the current withstand capability, the switching frequency of electronic switching tubes, and the features of the resonant circuit, the series-parallel (SP) compensation mode is selected as the best compensation mode for matching the capacitor of the system. The performances of coils with different ferrite core arrangements are compared by simulations and models. The feasibility of the system is verified theoretically and the system functions are evaluated by the joint simulation of Simplorer and Maxwell. Finally, a Witricity-based high-power device is proposed as designed, and the correctness of theoretical analyses and simulation results are verified.

Suggested Citation

  • Zhongyu Dai & Junhua Wang & Mengjiao Long & Hong Huang, 2017. "A Witricity-Based High-Power Device for Wireless Charging of Electric Vehicles," Energies, MDPI, vol. 10(3), pages 1-14, March.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:3:p:323-:d:92405
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    References listed on IDEAS

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    Cited by:

    1. Mohamed, Ahmed A.S. & Shaier, Ahmed A. & Metwally, Hamid & Selem, Sameh I., 2020. "A comprehensive overview of inductive pad in electric vehicles stationary charging," Applied Energy, Elsevier, vol. 262(C).
    2. Matjaz Rozman & Michael Fernando & Bamidele Adebisi & Khaled M. Rabie & Tim Collins & Rupak Kharel & Augustine Ikpehai, 2017. "A New Technique for Reducing Size of a WPT System Using Two-Loop Strongly-Resonant Inductors," Energies, MDPI, vol. 10(10), pages 1-18, October.
    3. Amjad, Muhammad & Farooq-i-Azam, Muhammad & Ni, Qiang & Dong, Mianxiong & Ansari, Ejaz Ahmad, 2022. "Wireless charging systems for electric vehicles," Renewable and Sustainable Energy Reviews, Elsevier, vol. 167(C).

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