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Optimal Control of Backflow Power of Dual Active Bridge DC-DC Converter Based on EPS
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Fengxin CUI1, Anbang SHI2, Shan YU1
Journal of Power Supply | 2025, 23(5) : 18 - 24
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Journal of Power Supply | 2025, 23(5): 18-24
• DC-DC Converters •
Optimal Control of Backflow Power of Dual Active Bridge DC-DC Converter Based on EPS
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Fengxin CUI1, Anbang SHI2, Shan YU1
Affiliations
  • 1.Department of Electrical Engineering, Fuzhou University Zhicheng College, Fuzhou 350002, China
  • 2.College of Electric Engineering and Automation, Fuzhou University, Fuzhou 350108, China
Published: 2025-09-30 doi: 10.13234/j.issn.2095-2805.2025.5.18
Outline
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A multi-objective optimal control method based on extended phase shift (EPS) is proposed for a dual active bridge (DAB) converter in order to simultaneously reduce the backflow power and improve its dynamic performance. First, the output power and backflow power characteristics of EPS in each mode are comprehensively analyzed, mathematical models are developed, and the optimal combination of the backflow power shift angles is solved according to the Karush-Kuhn-Tucker (KKT) condition. Second, a virtual voltage compensation scheme is used to improve the dynamic performance of the system by rapidly changing the transmission power at that moment. Finally, the proposed scheme was compared with the traditional single phase shift and EPS schemes through experiments, thereby verifying its effectiveness and advantage.

Dual active bridge (DAB) converter  /  extended phase shift (EPS)  /  backflow power  /  dynamic performance
崔凤新, 石安邦, 俞珊. 基于EPS的双有源桥DC-DC变换器回流功率优化控制. 电源学报, 2025 , 23 (5) : 18 -24 . DOI: 10.13234/j.issn.2095-2805.2025.5.18
Fengxin CUI, Anbang SHI, Shan YU. Optimal Control of Backflow Power of Dual Active Bridge DC-DC Converter Based on EPS[J]. Journal of Power Supply, 2025 , 23 (5) : 18 -24 . DOI: 10.13234/j.issn.2095-2805.2025.5.18
Funding
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  • Fuzhou Science and Technology Planning Project(2019-G-44)
  • Science and Technology Foundation of Fujian Provincial Education Department(JAT170844)
Appendix
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Year 2025 volume 23 Issue 5
62
15
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.5.18
  • Receive Date：2022-08-18
  • Online Date：2026-10-26
  • Published：2025-09-30
Article Data
Affiliations
History
  • Received：2022-08-18
  • Revised：2022-10-08
  • Accepted：2022-10-19
Funding
Fuzhou Science and Technology Planning Project(2019-G-44)
Science and Technology Foundation of Fujian Provincial Education Department(JAT170844)
Affiliations
    1.Department of Electrical Engineering, Fuzhou University Zhicheng College, Fuzhou 350002, China
    2.College of Electric Engineering and Automation, Fuzhou University, Fuzhou 350108, China
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光柄菇属 Pluteus 5 2.39
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栓菌属 Trametes 5 2.39
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