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A Three-Phase Dynamic Wireless Charging System with Constant Output Voltage

Author

Listed:
  • Ruikun Mai

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

  • Hongchao Li

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

  • Yeran Liu

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

  • Kunzhuo Zhou

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

  • Ling Fu

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

  • Zhengyou He

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)

Abstract

A dynamic wireless power transfer (WPT) system is an effective method, which can reduce charging time and extend the driving range of the electric vehicles. In the dynamic WPT systems, the output voltage may fluctuate when the receiver moves along the transmitter coils. This paper proposes a three-phase dynamic WPT charging system with overlapped three-phase transmitter coils. The overlap length is optimized to depress the fluctuation of the output voltage. These coils are powered by a three-phase inverter to generate an even magnetic field, and a unipolar coil is employed as a receiver to simplify the coil structure of the secondary side. Based on the proposed three-phase coil structure, the output voltage characteristics of the system are analyzed in detail. A 500 W dynamic charging prototype is established to validate the proposed dynamic charging system. Experimental results show that the output voltage fluctuation is within ±3.05%. The maximum system efficiency reaches 89.94%.

Suggested Citation

  • Ruikun Mai & Hongchao Li & Yeran Liu & Kunzhuo Zhou & Ling Fu & Zhengyou He, 2018. "A Three-Phase Dynamic Wireless Charging System with Constant Output Voltage," Energies, MDPI, vol. 11(1), pages 1-12, January.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:1:p:45-:d:124486
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    References listed on IDEAS

    as
    1. Yong Li & Ruikun Mai & Tianren Lin & Hongjian Sun & Zhengyou He, 2017. "A Novel WPT System Based on Dual Transmitters and Dual Receivers for High Power Applications: Analysis, Design and Implementation," Energies, MDPI, vol. 10(2), pages 1-16, February.
    2. Kunwar Aditya & Sheldon Williamson, 2016. "Linearization and Control of Series-Series Compensated Inductive Power Transfer System Based on Extended Describing Function Concept," Energies, MDPI, vol. 9(11), pages 1-16, November.
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    Cited by:

    1. Yong Tian & Jindong Tian & Dong Li & Shijie Zhou, 2018. "A Multiple Legs Inverter with Real Time–Reflected Load Detection Used in the Dynamic Wireless Charging System of Electric Vehicles," Energies, MDPI, vol. 11(5), pages 1-20, May.
    2. Jaber Abu Qahouq & Yuan Cao, 2018. "Control Scheme and Power Electronics Architecture for a Wirelessly Distributed and Enabled Battery Energy Storage System," Energies, MDPI, vol. 11(7), pages 1-20, July.

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