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Study on Current-fed Dual-active-bridge DC-DC Converter Based on Coupling Filter Inductance
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Zhen LAI1, Jun ZENG1, Junfeng LIU2
Journal of Power Supply | 2025, 23(2) : 11 - 20
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Journal of Power Supply | 2025, 23(2): 11-20
• DC-DC Converters •
Study on Current-fed Dual-active-bridge DC-DC Converter Based on Coupling Filter Inductance
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Zhen LAI1, Jun ZENG1, Junfeng LIU2
Affiliations
  • 1 School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, China
  • 2 School of Automation Science and Engineering, South China University of Technology, Guangzhou 510640, China
Published: 2025-03-30 doi: 10.13234/j.issn.2095-2805.2025.2.11
Outline
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In an energy storage system, the current-fed dual-active-bridge converter has a large current stress and the corresponding soft-switching range is limited, which limits the converter’s efficiency and power density. To solve these problems, combined with the coupled inductor technology, a current-fed dual-active-bridge converter with a low current ripple on the energy storage side and a wide soft-switching range is proposed. Two current-fed full bridges are connected in parallel on the energy storage side, thus effectively reducing the current stress of switches therein. By adjusting the phase shift angle between the two parallel full bridges on the energy storage side, the current ripple is reduced. By reasonably designing the coupling filter inductance, the obtained mutual inductance current is large enough to satisfy the soft-switching conditions for switches. The working principle and steady-state analysis of the converter were given in detail, and a 400 W experimental prototype was designed to verify the superiority and feasibility of the proposed converter.

Dual-active-bridge converter  /  coupled inductor  /  interleave technology  /  soft-switching
Zhen LAI, Jun ZENG, Junfeng LIU. Study on Current-fed Dual-active-bridge DC-DC Converter Based on Coupling Filter Inductance[J]. Journal of Power Supply, 2025 , 23 (2) : 11 -20 . DOI: 10.13234/j.issn.2095-2805.2025.2.11
Funding
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  • National Natural Science Foundation of China(51877085)
  • National Natural Science Foundation of China(62173148)
  • Guangzhou Science and Technology Program Scientific Research Project(202002030373)
Appendix
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Year 2025 volume 23 Issue 2
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.2.11
  • Receive Date：2022-03-22
  • Online Date：2025-07-01
  • Published：2025-03-30
Article Data
Affiliations
History
  • Received：2022-03-22
  • Revised：2022-05-31
  • Accepted：2022-06-03
Funding
National Natural Science Foundation of China(51877085)
National Natural Science Foundation of China(62173148)
Guangzhou Science and Technology Program Scientific Research Project(202002030373)
Affiliations
    1 School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, China
    2 School of Automation Science and Engineering, South China University of Technology, Guangzhou 510640, China
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https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2025.2.11
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表12种不同金属材料的力学参数
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Family		 属数
Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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