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A Converter with Automatic Stage Transition Control for Inductive Power Transfer

Author

Listed:
  • Lin Chen

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, China
    Kehua Hengsheng Co., Ltd., Xiamen 361005, China)

  • Jianfeng Hong

    (Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361005, China
    Collaborative Innovation Center for R & D of Coach and Special Vehicle, Xiamen University of Technology, Xiamen 361024, China)

  • Zaifa Lin

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

  • Daqing Luo

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

  • Mingjie Guan

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

  • Wenxiang Chen

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

Abstract

An automatic stage transition converter for an inductive power transfer system is presented in this paper. An effective control strategy with two working stages of independent energy injection stage and free resonance stage is employed in the proposed converter. With the automatic stage transition strategy, when the frequency of the resonance network changes, the ending time of the free resonance stage is automatically determined. At the same time, the phase angle of the free resonance stage is automatically set as half a resonant cycle. As the stage transition is not triggered by the switches, the switch motion can be executed in advance of the transition moments. Time margins are offered for every switch in the converter, which make the switching moments of the switches flexible and the control simple. Another feature of this converter is that during the energy injection stage, the energy is injected into the inductor independently. Therefore, the input power can be easily regulated by adjusting the energy injection time. A prototype for the converter and the inductive power transfer system was implemented experimentally. From the experimental results, the automatic stage transition and power regulation capability of the proposed converter are verified. The switches all operated at the soft switch condition. When the energy injection time was adjusted from 10 μs to 25 μs, the output power changed from 143 W to 740 W.

Suggested Citation

  • 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 1-14, October.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:20:p:5268-:d:426102
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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. Adam Steckiewicz & Jacek Maciej Stankiewicz & Agnieszka Choroszucho, 2020. "Numerical and Circuit Modeling of the Low-Power Periodic WPT Systems," Energies, MDPI, vol. 13(10), pages 1-17, May.
    3. 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.
    4. Seung-Hwan Lee & Jae-Hee Kim & Jun-Ho Lee, 2016. "Development of a 60 kHz, 180 kW, Over 85% Efficiency Inductive Power Transfer System for a Tram," Energies, MDPI, vol. 9(12), pages 1-15, December.
    5. 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.
    6. Tommaso Campi & Silvano Cruciani & Mauro Feliziani, 2018. "Wireless Power Transfer Technology Applied to an Autonomous Electric UAV with a Small Secondary Coil," Energies, MDPI, vol. 11(2), pages 1-15, February.
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    Cited by:

    1. Lin Chen & Daqing Luo & Jianfeng Hong & Mingjie Guan & Wenxiang Chen, 2024. "Self-Oscillating Converter Based on Phase Tracking Closed Loop for a Dynamic IPT System," Energies, MDPI, vol. 17(8), pages 1-24, April.

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