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Research on Six-switch Dual-resonant Converter with Fixed-frequency Phase-shift Control
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Jian PAN, Haojie SONG, Songlin LIU, Jiaxin XIONG, Di SHI
Journal of Power Supply | 2024, 22(2) : 55 - 63
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Journal of Power Supply | 2024, 22(2): 55-63
• DC-DC Converters •
Research on Six-switch Dual-resonant Converter with Fixed-frequency Phase-shift Control
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Jian PAN, Haojie SONG, Songlin LIU, Jiaxin XIONG, Di SHI
Affiliations
  • School of Electrical and Electronic Engineering Hubei University of Technology Wuhan 430068 China
Published: 2024-03-30 doi: 10.13234/j.issn.2095-2805.2024.2.55
Outline
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Aimed at the poor voltage regulation performance and large circulating current of the traditional frequency-controlled LLC resonant converter in wide voltage applications, a six-switch dual-resonant LLC converter is designed, which is a hybrid combination of two full-bridge LLC resonant converters sharing one bridge arm. Compared with the traditional frequency control, fixed-frequency phase-shift control is employed in this converter to adjust the output voltage and reduce the switching frequency range. According to different connection modes of two transformers, the converter has two topological forms. When the two transformers are connected in series in the forward polarity, the converter's gain range is 0-1, which can achieve an ultra-wide output voltage range. When the two transformers are connected in series in the reverse polarity, the gain range is 1-2, and the circulating current loss during the working process is small. Under the two topological forms, the ZVS turn-ON of the primary switch tube and ZCS turn-OFF of the secondary diodes can be achieved, respectively. Finally, the validity of the research in this paper was verified by Simulink simulations and experimental results.

Fixed-frequency phase-shift control  /  resonant converter  /  wide output voltage  /  soft switching
Jian PAN, Haojie SONG, Songlin LIU, Jiaxin XIONG, Di SHI. Research on Six-switch Dual-resonant Converter with Fixed-frequency Phase-shift Control[J]. Journal of Power Supply, 2024 , 22 (2) : 55 -63 . DOI: 10.13234/j.issn.2095-2805.2024.2.55
Funding
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  • Open Fund of Hubei Province Key Laboratory for Solar Power and Energy Storage Operation Control(HBSEES201902)
Appendix
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Year 2024 volume 22 Issue 2
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276
109
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Article Info
doi: 10.13234/j.issn.2095-2805.2024.2.55
  • Receive Date：2021-04-06
  • Online Date：2025-07-21
  • Published：2024-03-30
Article Data
Affiliations
History
  • Received：2021-04-06
  • Revised：2021-06-10
  • Accepted：2021-06-15
Funding
Open Fund of Hubei Province Key Laboratory for Solar Power and Energy Storage Operation Control(HBSEES201902)
Affiliations
    School of Electrical and Electronic Engineering Hubei University of Technology Wuhan 430068 China
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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