Peak Current Reduction of Bidirectional-Asymmetrical-Power-Flow DC-DC Converters for Low-Penetration-Renewable-Energy Power Distribution Networks

被引：0
|
作者：
Wang, Kangan [1 ]
Wu, Siyu [2 ]
Fan, Chenjie [1 ]
Yang, Cheng [1 ]
Wu, Weimin [3 ]
Liserre, Marco [4 ]
机构：
[1] Shanghai Maritime Univ, Logist Engn Coll, Shanghai 201306, Peoples R China
[2] Sungrow Power Supply Co Ltd, Shanghai 201611, Peoples R China
[3] Anhui Univ Sci & Technol, Sch Elect & Informat Engn, Huainan 232000, Peoples R China
[4] Univ Kiel, Chair Power Elect, D-24105 Kiel, Germany
来源：
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2024年 / 12卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Bidirectional-asymmetric-power-flow; dc-dc converter; low-penetration-renewable-energy; peak current; power path; DUAL-ACTIVE BRIDGE; ALGORITHM; MVDC;
D O I：
10.1109/JESTPE.2024.3406574
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The bidirectional-asymmetrical-power-flow (BAPF) dc-dc converters, which consist of the uncontrolled rectification power path dealing with large forward power and the active power path dealing with small reverse power, show the potential for constructing simple and reliable ac-dc or dc-dc power electronics transformers (PETs). However, the peak current caused by the uncontrolled rectification power path threatens the security of the active switches in the medium-voltage (MV) side and increases the power loss. This article analyzes the active operation mode of the BAPF dc-dc converter and proposes the optimized operation method for the peak current reduction. Based on those, a downscaled experimental prototype is developed, and the correctness of the theoretical analysis and the optimization method are verified by experimental results.
引用
收藏
页码：4342 / 4351
页数：10
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