Sub-module capacitance design of modular multilevel converters

被引：0
作者：
Guo, Gaopeng [1 ,2 ]
Hu, Xuehao [2 ]
Wen, Jialiang [1 ]
Wu, Guanglu [2 ]
机构：
[1] Smart Grid Research Institute of SGCC, Changping District, Beijing
[2] China Electrical Power Research Institute, Haidian District, Beijing
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2014年 / 34卷 / 30期
关键词：
Capacitor parameter design; Equivalent circuit; High- voltage dc (HVDC); Modular multilevel converter (MMC);
D O I：
10.13334/j.0258-8013.pcsee.2014.30.009
中图分类号：
学科分类号：
摘要：
In this paper, the power characteristics of the arm in the Modular Multilevel converter (MMC) was studied, and the mathematical equation of the instantaneous power of the arm and the DC component of the arm current were acquired. By studying the equivalent circuit of the capacitor charge circuit, the mathematical equation of the equivalent charge current and capacitor AC voltage component were acquired. Based on the mathematical equation of the capacitor AC voltage component, the relationship of magnitude of B with modulate ratio and power factor angle were acquired. Furthermore, the mathematical equation of the magnitude of capacitor AC voltage component were worked out and the design approach of the sub-module capacitor were put forward. The simulation results show the accuracy of the mathematical equation of capacitor AC voltage component and the design approach of the sub-module capacitor. © 2014 Chinese Society for Electrical Engineering.
引用
收藏
页码：5329 / 5334
页数：5
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