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Minimum Current Stress Control with Varying Switching Frequency for Dual-active-bridge Converter
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Wei HE, Xiaofang LIU
Journal of Power Supply | 2024, 22(5) : 92 - 99
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Journal of Power Supply | 2024, 22(5): 92-99
• DC-DC Converters •
Minimum Current Stress Control with Varying Switching Frequency for Dual-active-bridge Converter
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Wei HE, Xiaofang LIU
Affiliations
  • School of Electrical and Control Engineering Henan University of Urban Construction Pingdingshan 467044 China
Published: 2024-09-30 doi: 10.13234/j.issn.2095-2805.2024.5.92
Outline
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To improve the efficiency of a dual-active-bridge (DAB) converter, a control strategy of minimum current stress with varying switching frequency control is proposed. First, the minimum-current-stress-optimized control method when the voltage changes in a wide range is analyzed, the expressions for the conduction loss and switching loss of the DAB converter under light load conditions are established, and the conduction loss and switching loss at different switching frequencies are further compared. Then, the implementation method for closed-loop control and the power transmission range in each mode are introduced in detail. Under light load conditions, the proposed method can significantly reduce the current stress while improving the efficiency of the DAB converter. Finally, simulation and experimental results verified the advantage of the proposed control method.

Dual-active-bridge (DAB) converter  /  DC/DC converter  /  minimum current stress  /  varying switching frequency control  /  efficiency optimization
Wei HE, Xiaofang LIU. Minimum Current Stress Control with Varying Switching Frequency for Dual-active-bridge Converter[J]. Journal of Power Supply, 2024 , 22 (5) : 92 -99 . DOI: 10.13234/j.issn.2095-2805.2024.5.92
Funding
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  • National Natural Science Foundation of China(61803145)
  • Training Plan for Young Backbone Teachers in Colleges and Universities of Henan Province, China(2023GGJS141)
  • Henan Province Science and Technology Research Project(232102210163)
Appendix
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Year 2024 volume 22 Issue 5
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416
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Article Info
doi: 10.13234/j.issn.2095-2805.2024.5.92
  • Receive Date：2021-07-05
  • Online Date：2025-07-20
  • Published：2024-09-30
Article Data
Affiliations
History
  • Received：2021-07-05
  • Revised：2021-09-29
  • Accepted：2021-10-31
Funding
National Natural Science Foundation of China(61803145)
Training Plan for Young Backbone Teachers in Colleges and Universities of Henan Province, China(2023GGJS141)
Henan Province Science and Technology Research Project(232102210163)
Affiliations
    School of Electrical and Control Engineering Henan University of Urban Construction Pingdingshan 467044 China
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