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Unified Control of Bidirectional H4 Bridge Converter
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Yuyan JU1, Yu FANG1, Wei TANG1, Xiaofei WANG1, Li ZHANG2
Journal of Power Supply | 2025, 23(2) : 48 - 56
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Journal of Power Supply | 2025, 23(2): 48-56
• DC-DC Converters •
Unified Control of Bidirectional H4 Bridge Converter
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Yuyan JU1, Yu FANG1, Wei TANG1, Xiaofei WANG1, Li ZHANG2
Affiliations
  • 1 College of Information Engineering, Yangzhou University, Yangzhou 225000, China
  • 2 College of Electrical and Power Engineering, Hohai University, Nanjing 211100, China
Published: 2025-03-30 doi: 10.13234/j.issn.2095-2805.2025.2.48
Outline
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Aimed at the time-delay oscillation of a bidirectional H4 bridge converter in a single-phase energy storage inverter, a unified control method for the bidirectional H4 bridge converter is proposed. In this method, a voltage regulator is used to control the power flow of the converter, and a set of bidirectional feasible control parameters are derived based on the power balance theory. At the same time, in order to realize AC current tracking input voltage without static error and increase the stability, the current inner-loop adopts a quasi proportional resonance controller, and a second-order generalized integrator is used to design a phase-locked loop. PSIM simulation and experimental results show that the proposed method can realize seamless switching between the rectification and active inverter modes, and it also has a good effect in the startup and switching between different modes. Therefore, it can realize stable control of the bidirectional AC-DC bridge converter in a single-phase photovoltaic energy storage system and obtain a good dynamic performance.

Photovoltaic energy storage inverter  /  double closed-loop control  /  unified control  /  seamless switching
Yuyan JU, Yu FANG, Wei TANG, Xiaofei WANG, Li ZHANG. Unified Control of Bidirectional H4 Bridge Converter[J]. Journal of Power Supply, 2025 , 23 (2) : 48 -56 . DOI: 10.13234/j.issn.2095-2805.2025.2.48
Funding
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  • National Natural Science Foundation of China(52177176)
  • The Industrial Foresight and Universal Key Technology Research and Development Project of Yangzhou Science and Technology Project(YZ2021022)
Appendix
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Year 2025 volume 23 Issue 2
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316
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.2.48
  • Receive Date：2022-04-17
  • Online Date：2025-07-01
  • Published：2025-03-30
Article Data
Affiliations
History
  • Received：2022-04-17
  • Revised：2022-06-15
  • Accepted：2022-06-24
Funding
National Natural Science Foundation of China(52177176)
The Industrial Foresight and Universal Key Technology Research and Development Project of Yangzhou Science and Technology Project(YZ2021022)
Affiliations
    1 College of Information Engineering, Yangzhou University, Yangzhou 225000, China
    2 College of Electrical and Power Engineering, Hohai University, Nanjing 211100, China
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