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A Dual Half-Bridge Converter with Adaptive Energy Storage to Achieve ZVS over Full Range of Operation Conditions

Author

Listed:
  • Lei Zhao

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150-001, China)

  • Chuangyu Xu

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150-001, China)

  • Xuemei Zheng

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150-001, China)

  • Haoyu Li

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150-001, China)

Abstract

The phase-shifted full-bridge (PSFB) converter is widely employed in high-power applications. However, circulating current, duty-cycle loss, secondary voltage oscillation, and narrow zero-voltage-switching (ZVS) range are the main drawbacks of the conventional PSFB converter. This paper proposes a novel full-bridge converter to improve the performance of the conventional PSFB converter. The proposed converter contains two paralleled half-bridge inverters and an auxiliary inductor on the primary side. The rectifier stage is composed of six diodes connected with the form of full-bridge rectification. This structure allows the stored energy for ZVS operation to change adaptively with duty-cycle. The power can be transferred from the primary side to the secondary side during the whole period. Therefore, the requirement of output filter inductance is reduced and the circulating current is removed. The proposed converter is a good candidate for high power, high voltage and variable input voltage applications. The operation principle and performance are verified on a laboratory prototype.

Suggested Citation

  • Lei Zhao & Chuangyu Xu & Xuemei Zheng & Haoyu Li, 2017. "A Dual Half-Bridge Converter with Adaptive Energy Storage to Achieve ZVS over Full Range of Operation Conditions," Energies, MDPI, vol. 10(4), pages 1-10, March.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:4:p:444-:d:94256
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    References listed on IDEAS

    as
    1. Song Hu & Xiaodong Li & Ming Lu & Bo-Yue Luan, 2015. "Operation Modes of a Secondary-Side Phase-Shifted Resonant Converter," Energies, MDPI, vol. 8(11), pages 1-17, October.
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    Cited by:

    1. Dorin Petreus & Radu Etz & Toma Patarau & Ionut Ciocan, 2020. "Comprehensive Analysis of a High-Power Density Phase-Shift Full Bridge Converter Highlighting the Effects of the Parasitic Capacitances," Energies, MDPI, vol. 13(6), pages 1-20, March.
    2. Wenzheng Xu & Nelson Hon Lung Chan & Siu Wing Or & Siu Lau Ho & Ka Wing Chan, 2017. "A New Control Method for a Bi-Directional Phase-Shift-Controlled DC-DC Converter with an Extended Load Range," Energies, MDPI, vol. 10(10), pages 1-17, October.

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