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Time-Sharing Control Strategy for Multiple-Receiver Wireless Power Transfer Systems

Author

Listed:
  • Weikun Cai

    (Key Laboratory of Control of Power Transmission and Transformation Ministry of Education, Shanghai Jiao Tong University, 800 Dongchuan RD., Shanghai 200240, China)

  • Dianguang Ma

    (Key Laboratory of Control of Power Transmission and Transformation Ministry of Education, Shanghai Jiao Tong University, 800 Dongchuan RD., Shanghai 200240, China)

  • Xiaoyang Lai

    (Key Laboratory of Control of Power Transmission and Transformation Ministry of Education, Shanghai Jiao Tong University, 800 Dongchuan RD., Shanghai 200240, China)

  • Khurram Hashmi

    (Key Laboratory of Control of Power Transmission and Transformation Ministry of Education, Shanghai Jiao Tong University, 800 Dongchuan RD., Shanghai 200240, China)

  • Houjun Tang

    (Key Laboratory of Control of Power Transmission and Transformation Ministry of Education, Shanghai Jiao Tong University, 800 Dongchuan RD., Shanghai 200240, China)

  • Junzhong Xu

    (Key Laboratory of Control of Power Transmission and Transformation Ministry of Education, Shanghai Jiao Tong University, 800 Dongchuan RD., Shanghai 200240, China)

Abstract

The cross-coupling effect between the induction coils of a multiple-receiver wireless power transfer (MRWPT) system severely weakens its overall performance. In this paper, a time-sharing control strategy for MRWPT systems is proposed to reduce the cross-coupling between receiver coils. An active-bridge rectifier is introduced to the receivers to replace the uncontrollable rectifier to achieve synchronization of the time-sharing control. The synchronization signal generated by an active-bridge rectifier can be directly used to realize the synchronization of time-sharing control and hence saved the traditional zero-crossing point detection circuits for time-sharing circuits. Moreover, the proposed time-sharing system has the advantages of both operating under a resistance-matching condition and providing target output voltage for each receiver. Furthermore, a voltage control strategy was developed to provide both high efficiency and a target output voltage for each receiver. Finally, the simulation and experimental results show that the time-sharing MRWPT system reduced the cross-coupling effect between the receiver coils, and the voltage control strategy provided both a high efficiency and a target output voltage for each receiver.

Suggested Citation

  • Weikun Cai & Dianguang Ma & Xiaoyang Lai & Khurram Hashmi & Houjun Tang & Junzhong Xu, 2020. "Time-Sharing Control Strategy for Multiple-Receiver Wireless Power Transfer Systems," Energies, MDPI, vol. 13(3), pages 1-26, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:599-:d:314260
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    References listed on IDEAS

    as
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    5. Weikun Cai & Dianguang Ma & Houjun Tang & Xiaoyang Lai & Xin Liu & Longzhao Sun, 2018. "Highly Efficient Target Power Control for Two-Receiver Wireless Power Transfer Systems," Energies, MDPI, vol. 11(10), pages 1-17, October.
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