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Analysis and Elimination of Dead-Time Effect in Wireless Power Transfer System

Author

Listed:
  • Xin Liu

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

  • Tianfeng Wang

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

  • Nan Jin

    (College of Electric and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China)

  • Salman Habib

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

  • Muhammad Ali

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

  • Xijun Yang

    (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)

Abstract

Dead time between the complementary driving signals is needed to avoid short circuit in voltage source inverters (VSIs), however, this raises issues such as voltage distortion and harmonic generation. In wireless power transfer (WPT) systems, the ratio of dead time versus operating period becomes more problematic due to the high frequency, where the dead time can cause serious concerns regarding the phase errors and control performance deterioration. Therefore, this paper presents a comprehensive analysis of the dead-time effect for WPT systems based on a series–series (SS) topology. Firstly, it is found that voltage distortion appears in two regions in comparison with the three in one active bridge WPT system, and seven regions, as compared to the eight in dual active bridge (DAB) WPT system. Afterwards, a novel pulse width modulation (PWM) method is proposed, where the driving signals of the same phase leg are no longer complementary to each other. By employing the proposed method, the dead-time effect can be addressed up to a certain extent, and the desired voltage can be obtained in all the regions. In addition, the proposed method is not influenced by the system parameters, and can be easily applied to other high-frequency resonant converters. Simulated and experimental results are added to verify the feasibility and efficacy of the proposed control scheme.

Suggested Citation

  • Xin Liu & Tianfeng Wang & Nan Jin & Salman Habib & Muhammad Ali & Xijun Yang & Houjun Tang, 2018. "Analysis and Elimination of Dead-Time Effect in Wireless Power Transfer System," Energies, MDPI, vol. 11(6), pages 1-15, June.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:6:p:1577-:d:152794
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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. 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.
    3. Xi Zhang & Ziyang Lai & Rui Xiong & Zhe Li & Zhimin Zhang & Liang Song, 2017. "Switching Device Dead Time Optimization of Resonant Double-Sided LCC Wireless Charging System for Electric Vehicles," Energies, MDPI, vol. 10(11), pages 1-10, November.
    4. Xin Liu & Tianfeng Wang & Xijun Yang & Nan Jin & Houjun Tang, 2017. "Analysis and Design of a Wireless Power Transfer System with Dual Active Bridges," Energies, MDPI, vol. 10(10), pages 1-20, October.
    5. Yi Wang & Fei Lin & Zhongping Yang & Zhiyuan Liu, 2017. "Analysis of the Influence of Compensation Capacitance Errors of a Wireless Power Transfer System with SS Topology," Energies, MDPI, vol. 10(12), pages 1-14, December.
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