A New Circulating Current Suppressing Control Strategy for Modular Multilevel Converters

被引：0
|
作者：
Ji, Huali [1 ]
Chen, Alian [1 ]
Liu, Qi [1 ]
Zhang, Chenghui [1 ]
机构：
[1] Shandong Univ, Sch Control Sci & Engn, Jinan 250061, Shandong, Peoples R China
来源：
PROCEEDINGS OF THE 36TH CHINESE CONTROL CONFERENCE (CCC 2017) | 2017年
基金：
中国国家自然科学基金;
关键词：
Modular multilevel converter; circulating current; suppression; rotating coordinate transformation; PIR;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The modular multi-level converter (MMC) is considered as the state of the art converter among multilevel topologies. The harmonic suppression of circulating current is the inherent problem needed to be solved. In this paper, a new control strategy is proposed. The strategy includes the double fundamental frequency, negative sequence rotating coordinate transformation and the four fundamental frequency, positive sequence rotating coordinate transformation, besides, the PIR controller is used to improve the harmonic characteristic. Through this control strategy, the second-and the fourth-order harmonics are suppressed, and the source of higher-order harmonics generation are prevented. Simulation results based on MATLAB verify the effectiveness of the proposed control strategy.
引用
收藏
页码：9151 / 9156
页数：6
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