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Analysis and Design of High-Efficiency Bidirectional GaN-Based CLLC Resonant Converter

Author

Listed:
  • Yuanjun Liu

    (School of Electric Power Engineering, South China University of Technology, Guangzhou 510641, China)

  • Guiping Du

    (School of Electric Power Engineering, South China University of Technology, Guangzhou 510641, China)

  • Xueyi Wang

    (School of Electric Power Engineering, South China University of Technology, Guangzhou 510641, China)

  • Yanxiong Lei

    (School of Electric Power Engineering, South China University of Technology, Guangzhou 510641, China)

Abstract

A bidirectional CLLC resonant converter (CLLC-BRC) based on GaN transistors is analyzed and designed in this paper. Similar resonant topologies are listed and commented on, with the CLLC topology showing competitiveness in bidirectional energy transmission. The analysis of the aforementioned converter has been provided, including the reveal of resonant frequencies of the CLLC topology and an improved zero-voltage switching (ZVS) condition with operation principles of the reverse mode and relevant parasitic parameters taken into account. The design methodology of the aforementioned converter based on pulse frequency modulation (PFM) is further discussed in detail. A prototype with a rated power of 400 W and a maximal operating frequency that is larger than 0.5 MHz was built to verify the proposed design methodology. The highest conversion efficiency of the prototype was 97.02% in the forward mode, and it was 95.96% in the reverse mode.

Suggested Citation

  • Yuanjun Liu & Guiping Du & Xueyi Wang & Yanxiong Lei, 2019. "Analysis and Design of High-Efficiency Bidirectional GaN-Based CLLC Resonant Converter," Energies, MDPI, vol. 12(20), pages 1-13, October.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:20:p:3859-:d:275716
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    Citations

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    Cited by:

    1. Yih-Her Yan & Yong-Nong Chang & Zhi-Xuan Peng, 2022. "Design of a Bidirectional CL 3 C Full-Bridge Resonant Converter for Battery Energy Storage Systems," Energies, MDPI, vol. 15(2), pages 1-22, January.
    2. Bor-Ren Lin, 2021. "Implementation of a Resonant Converter with Topology Morphing to Achieve Bidirectional Power Flow," Energies, MDPI, vol. 14(16), pages 1-21, August.
    3. Armel Asongu Nkembi & Paolo Cova & Emilio Sacchi & Emanuele Coraggioso & Nicola Delmonte, 2023. "A Comprehensive Review of Power Converters for E-Mobility," Energies, MDPI, vol. 16(4), pages 1-28, February.
    4. Hwa-Pyeong Park & Mina Kim & Jee-Hoon Jung, 2020. "A Comprehensive Overview in Control Algorithms for High Switching-Frequency LLC Resonant Converter," Energies, MDPI, vol. 13(17), pages 1-17, August.

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