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A Power Converter Decoupled from the Resonant Network for Wireless Inductive Coupling Power Transfer

Author

Listed:
  • Lin Chen

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, China
    Department of Biological System Engineering, Washington State University, Pullman, WA 99164, USA)

  • Jianfeng Hong

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, China
    Fujian Collaborative Innovation Center for R&D of Coach and Special Vehicle, Xiamen 361024, China
    Fujian Key Laboratory of Advanced Design and Manufacture for Bus$Coach, Xiamen 361024, China)

  • Mingjie Guan

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, China)

  • Wei Wu

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, China
    School of Mechanical and Electrical Engineering, Guizhou Normal University, Guiyang 550001, Guizhou, China)

  • Wenxiang Chen

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, China
    Fujian Collaborative Innovation Center for R&D of Coach and Special Vehicle, Xiamen 361024, China
    Fujian Key Laboratory of Advanced Design and Manufacture for Bus$Coach, Xiamen 361024, China)

Abstract

In a traditional inductive coupling power transfer (ICPT) system, the converter and the resonant network are strongly coupled. Since the coupling coefficient and the parameters of the resonant network usually vary, the resonant network easily detunes, and the system efficiency, power source capacity, power control, and soft switching conditions of the ICPT system are considerably affected. This paper presents an ICPT system based on a power converter decoupled from the resonant network. In the proposed system, the primary inductor is disconnected from the resonant network during the energy injection stage. After storing a certain amount of energy, the primary inductor is reconnects with the resonant network. Through this method, the converter can be decoupled from the resonant network, and the resonant network can be tuned under various coupling coefficients. Theoretical analysis was explored first. Simulations and experimental work are carried out to verify the theoretical analysis. The results show that the proposed ICPT system has the virtues of low power source capacity, independent power control, and soft switching operation under different coupling coefficients.

Suggested Citation

  • Lin Chen & Jianfeng Hong & Mingjie Guan & Wei Wu & Wenxiang Chen, 2019. "A Power Converter Decoupled from the Resonant Network for Wireless Inductive Coupling Power Transfer," Energies, MDPI, vol. 12(7), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:7:p:1192-:d:217522
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    References listed on IDEAS

    as
    1. Yan Lu & Dongsheng Brian Ma, 2016. "Wireless Power Transfer System Architectures for Portable or Implantable Applications," Energies, MDPI, vol. 9(12), pages 1-16, December.
    2. Karam Hwang & Jaeyong Cho & Dongwook Kim & Jaehyoung Park & Jong Hwa Kwon & Sang Il Kwak & Hyun Ho Park & Seungyoung Ahn, 2017. "An Autonomous Coil Alignment System for the Dynamic Wireless Charging of Electric Vehicles to Minimize Lateral Misalignment," Energies, MDPI, vol. 10(3), pages 1-20, March.
    3. Chaoqiang Jiang & K. T. Chau & Chunhua Liu & Christopher H. T. Lee, 2017. "An Overview of Resonant Circuits for Wireless Power Transfer," Energies, MDPI, vol. 10(7), pages 1-20, June.
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    Cited by:

    1. Lin Chen & Jianfeng Hong & Mingjie Guan & Zaifa Lin & Wenxiang Chen, 2019. "A Converter Based on Independently Inductive Energy Injection and Free Resonance for Wireless Energy Transfer," Energies, MDPI, vol. 12(18), pages 1-19, September.
    2. Lin Chen & Jianfeng Hong & Zaifa Lin & Daqing Luo & Mingjie Guan & Wenxiang Chen, 2020. "A Converter with Automatic Stage Transition Control for Inductive Power Transfer," Energies, MDPI, vol. 13(20), pages 1, October.

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