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Research on Optimal Control Strategy for Minimum Reflux Power of Three-level Dual Active Bridge DC-DC Converter
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Junrui WANG, Lu TAN, Rui WANG, Linhui LI, Hao QIN
Journal of Power Supply | 2026, 24(6) : 117 - 125
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Journal of Power Supply | 2026, 24(6): 117-125
• Power Converter Modeling and Control •
Research on Optimal Control Strategy for Minimum Reflux Power of Three-level Dual Active Bridge DC-DC Converter
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Junrui WANG, Lu TAN, Rui WANG, Linhui LI, Hao QIN
Affiliations
  • School of Electrical and Information Engineering, North Minzu University, Yinchuan 750000, China
Published: 2026-06-30 doi: 10.13234/j.issn.2095-2805.2026.6.117
Outline
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To solve the problem of reflux power and switching tube loss in a neutral point clamped three-level dual active bridge (DAB) DC-DC converter, an optimal control strategy for reducing the reflux power in the zero-voltage switching (ZVS) boundary and range is proposed. Under the premise of realizing ZVS for all the switching tubes, this strategy can reduce the reflux power. First, the working principle for the three-level DAB converter under dual phase-shift (DPS) control is analyzed, and the ZVS range is obtained. Then, the mathematical models of transmission power and reflux power are established, and the reflux power is optimized within the ZVS boundary and range, respectively. Finally, the effectiveness of the proposed control strategy was verified by simulations and an experimental platform.

Three-level dual active bridge (DAB) DC-DC converter  /  zero-voltage switching (ZVS)  /  reflux power  /  dual phase-shift (DPS)  /  transformer ratio
王君瑞, 谭露, 王瑞, 李琳慧, 秦豪. 三电平双有源桥DC-DC变换器最小回流功率优化控制策略研究. 电源学报, 2026 , 24 (6) : 117 -125 . DOI: 10.13234/j.issn.2095-2805.2026.6.117
Junrui WANG, Lu TAN, Rui WANG, Linhui LI, Hao QIN. Research on Optimal Control Strategy for Minimum Reflux Power of Three-level Dual Active Bridge DC-DC Converter[J]. Journal of Power Supply, 2026 , 24 (6) : 117 -125 . DOI: 10.13234/j.issn.2095-2805.2026.6.117
Funding
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  • National Natural Science Foundation of China(52167004)
  • Ningxia Hui Autonomous Region Intelligent Equipment and Precision Detection Technology Research and Application Innovation Team(2022BSB03104)
  • North Minzu University Innovation Project(YCX23143)
Appendix
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Year 2026 volume 24 Issue 6
30
2
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.6.117
  • Receive Date：2024-05-28
  • Online Date：2026-10-29
  • Published：2026-06-30
Article Data
Affiliations
History
  • Received：2024-05-28
  • Revised：2024-08-20
  • Accepted：2024-08-31
Funding
National Natural Science Foundation of China(52167004)
Ningxia Hui Autonomous Region Intelligent Equipment and Precision Detection Technology Research and Application Innovation Team(2022BSB03104)
North Minzu University Innovation Project(YCX23143)
Affiliations
    School of Electrical and Information Engineering, North Minzu University, Yinchuan 750000, China
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