Multiplexing Arm Based Modular Multilevel Converter with Energy Storage

被引：0
|
作者：
Zeng W. [1 ,2 ]
Li R. [2 ]
Cai X. [2 ]
机构：
[1] Energy Development Research Institute of China Southern Power Grid, Guangzhou
[2] Wind Power Research Center, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2023年 / 47卷 / 03期
基金：
中国国家自然科学基金;
关键词：
battery energy storage; DC fault blocking; flexible DC transmission; modular multilevel converter (MMC); multiplexing arm; quasi-full-bridge submodule (QFBSM); wind farm;
D O I：
10.7500/AEPS20211129004
中图分类号：
学科分类号：
摘要：
The modular multilevel converter based high voltage direct current (MMC-HVDC) transmission technology has become an ideal solution to the integration of large-scale and remote wind farms. When the penetration rate of wind power is high, the MMC-HVDC system for wind farm integration presents low-inertia characteristics. A possible solution to improving system inertia is adding the energy storage system and the appropriate control strategy. This paper proposes a quasi-full-bridge submodule topology for the MMC with energy storage based on the multiplexing arm and studies its modulation and control strategy. The quasi-full-bridge submodule is mixed with the half-bridge submodule to reduce the cost and loss of the system. Compared with the single-stage half-bridge submodule topology, the proposed topology has significantly lower requirements on battery voltage and can smooth the battery current. Compared with the two-stage half-bridge submodule, the proposed topology has DC fault blocking capability. Finally, the simulation and experimental results verify the effectiveness of the proposed topology and the modulation and control strategies. © 2023 Automation of Electric Power Systems Press. All rights reserved.
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收藏
页码：177 / 186
页数：9
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