Operational Flexibility of the Modular Multilevel Converter under Unbalanced Grid Conditions

被引：6
|
作者：
Su, Yu-chen [1 ]
Li, Hsuan-ming [1 ]
Chen, Po-lin [1 ]
Cheng, Po-tai [1 ]
机构：
[1] Natl Tsing Hua Univ, Dept Elect Engn, Hsinchu, Taiwan
来源：
2021 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2021年
关键词：
Static synchronous compensator (STATCOM); modular multilevel converter (MMC); power flow analysis; DC capacitor voltage balancing control; unbalanced grid conditions; CONTROL STRATEGY; FAULT RIDE; STATCOM; PERFORMANCE; DRIVES; ZERO;
D O I：
10.1109/ECCE47101.2021.9595263
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This paper has developed a static synchronous compensator (STATCOM) based on the open-DC modular multilevel converter (MMC) which has one more degree of freedom than the cascaded H-bridge converter to deal with the unbalanced grid conditions. In addition to the negative sequence current and the zero sequence voltage, the DC circulating current is also available in the open-DC MMC so that there are three control freedoms for addressing the unbalanced grid conditions. The corresponding control scheme is thus designed, and the laboratory test results are provided as well to validate the proposed control scheme.
引用
收藏
页码：2992 / 2999
页数：8
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