An Optimized Dual Phase Shift Modulation Strategy for Dual Active Bridge DC-DC Converter

被引：0
|
作者：
Wang R. [1 ,2 ]
Yang Q. [1 ,2 ]
Cao S. [1 ,2 ]
Liu P. [1 ,2 ]
Li S. [1 ,2 ]
机构：
[1] State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin
[2] Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2021年 / 36卷
关键词：
Current stress; Dual active bridge DC-DC converter; Dual phase shift modulation; Efficiency; Reactive power;
D O I：
10.19595/j.cnki.1000-6753.tces.191613
中图分类号：
学科分类号：
摘要：
To reduce the reactive power and peak current with the dual active bridge DC-DC converter under conventional dual phase shift (DPS) at non-heavy load, an optimized dual phase shift (ODPS) modulation is proposed in this paper. Two freedom degrees of ODPS are redefined. Based on this condition, the mathematical model of transmission power, reactive power and current stress with ODPS modulation are established. Besides, the reactive power and current stress of ODPS and DPS under the same transmission power were compared and analyzed. By comparison and analysis, the reactive power and current stress at non-heavy load can be effectively reduced by ODPS modulation, and thus the system efficiency can be improved. At last, experimental results verify the excellent performance of transmission power with ODPS modulation and correctness of the theoretical analysis. © 2021, Electrical Technology Press Co. Ltd. All right reserved.
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页码：274 / 282
页数：8
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