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A Phase-Shifted Control for Wireless Power Transfer System by Using Dual Excitation Units

Author

Listed:
  • Xin Dai

    (School of Automation, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing 400030, China)

  • Jincheng Jiang

    (School of Automation, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing 400030, China)

  • Yanling Li

    (School of Automation, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing 400030, China)

  • Ting Yang

    (No. 24 Research Institute of CETC, Nanping Huayuan Road No. 14, Nan’an District, Chongqing 400060, China)

Abstract

Wireless power transfer (WPT) technology can provide intelligent robots with a flexible, robust, and safe power supply, especially in very harsh environments including high humidity and high temperature. To meet increasing power requirement for robotic applications, this paper proposes a novel method to increase system power transfer capability without increasing voltage and current stress, realized by using dual excitation units at the primary side. On this basis, this paper proposes a phase-shifted control method for output power regulation which can keep efficiency high. At the same time, the system is proved to have a better output robust characteristic by analysis under the condition of parameter variation. Finally, experimental results show the proposed dual excitation units (DEU)-WPT system can increase output power by at least three times compared to classical WPT system, and the efficiency is improved by 9%.

Suggested Citation

  • Xin Dai & Jincheng Jiang & Yanling Li & Ting Yang, 2017. "A Phase-Shifted Control for Wireless Power Transfer System by Using Dual Excitation Units," Energies, MDPI, vol. 10(7), pages 1-16, July.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:7:p:1000-:d:104719
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    References listed on IDEAS

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    1. Qichang Duan & Yanling Li & Xin Dai & Tao Zou, 2017. "A Novel High Controllable Voltage Gain Push-Pull Topology for Wireless Power Transfer System," Energies, MDPI, vol. 10(4), pages 1-13, April.
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    Cited by:

    1. Xin Dai & Xiaofei Li & Yanling Li & Pengqi Deng & Chunsen Tang, 2017. "A Maximum Power Transfer Tracking Method for WPT Systems with Coupling Coefficient Identification Considering Two-Value Problem," Energies, MDPI, vol. 10(10), pages 1-13, October.

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