Research Progress of Capacitor Voltage Balancing Strategies for Modular Multilevel Converters

被引：0
|
作者：
Zhou Y. [1 ]
Qin L. [1 ]
Yang S. [1 ]
Yu X. [1 ]
Pu Q. [2 ]
Liu Z. [1 ]
Liu K. [1 ]
机构：
[1] School of Electrical Engineering and Automation, Wuhan University, Hubei Province, Wuhan
[2] Guizhou Power Dispatching Center, Guizhou Province, Guiyang
来源：
Dianwang Jishu/Power System Technology | 2023年 / 47卷 / 01期
基金：
中国国家自然科学基金;
关键词：
capacitance voltage sampling; capacitance voltage self-balancing; capacitor voltage balancing; modular multilevel converter; special working condition;
D O I：
10.13335/j.1000-3673.pst.2022.0056
中图分类号：
学科分类号：
摘要：
The DC capacitor voltage of the half-bridge modular multilevel converter (HB-MMC) is distributed in hundreds of submodules, resulting in complex dynamic interaction. The capacitor voltage balance is the key premise for the stable operation of MMC. A fast, reliable and practical MMC capacitor voltage balancing strategy is always the hotspot of engineering and academic research. In this paper, the research progress in recent years is summarized, the voltage balancing strategies with and without the submodule capacitance voltage sampling are reviewed, and the balancing control strategies under special conditions are induced. Finally, the voltage balancing characteristics of the methods above are compared, the future development trend of the MMC capacitor voltage balancing strategies is discussed, and their application prospect is looked forward to, providing a valuable reference for the safe and stable operation of MMC at different voltage levels. © 2023 Power System Technology Press. All rights reserved.
引用
收藏
页码：322 / 337
页数：15
相关论文
共 100 条
  • [1] Limin YANG, Yaohua LI, Zixin LI, Loss optimization of MMC by second-order harmonic circulating current injection[J], IEEE Transactions on Power Electronics, 33, 7, pp. 5739-5753, (2018)
  • [2] PEREZ M A, BERNET S, RODRIGUEZ J, Circuit topologies，modeling，control schemes，and applications of modular multilevel converters[J], IEEE Transactions on Power Electronics, 30, 1, pp. 4-17, (2015)
  • [3] WANG Chaoliang, XU Jianzhong, ZHAO Chengyong, MMC based on single-clamp sub-module and improved topology schemes[J], Electric Power Automation Equipment, 35, 9, pp. 74-80, (2015)
  • [4] WANG Yifan, ZHAO Chengyong, GUO Chunyi, Small signal stability and oscillation suppression method for islanded double fed induction generator-based wind farm integrated by modular multilevel converter based HVDC system[J], Transactions of China Electrotechnical Society, 34, 10, pp. 2116-2129, (2019)
  • [5] GUO Chunyi, WU Zhangxi, ZHAO Chengyong, Balancing control strategy for unbalanced current between multiple MMC converts in hybrid cascaded UHVDC system[J], Proceedings of the CSEE, 40, 20, pp. 6653-6662, (2020)
  • [6] FAN Xin, GUO Chunyi, DU Xiabing, Reactive power coordinated control approach for suppressing subsequent commutation failure of inverter station in hybrid cascaded UHVDC system[J], Power System Technology, 45, 9, pp. 3443-3452, (2021)
  • [7] CHI Yongning, LIANG Wei, ZHANG Zhankui, An overview on key technologies regarding power transmission and grid integration of large scale offshore wind power[J], Proceedings of the CSEE, 36, 14, pp. 3758-3770, (2016)
  • [8] FAN Qiang, ZHAO Xibei, ZHAO Chengyong, A parallel hybrid MMC for clearing fault in DC grid[J], Proceedings of the CSEE, 41, 14, pp. 4965-4974, (2021)
  • [9] XU Jianzhong, LI Yu, LU Feng, A review of suppression methods for sub-module capacitor voltage ripple amplitudes in modular multilevel converters[J], Proceedings of the CSEE, 39, 2, pp. 571-584, (2019)
  • [10] ZHAO Yuhan, WANG Xin, ZHAO Chengyong, Converter valve loss analysis based on half bridge-full bridge sub-module hybrid MMC[J], Power System Technology, 45, 7, pp. 2847-2855, (2021)
12345678910