Circulating Current and DC Current Ripple Control in MMC Under Unbalanced Grid Voltage

被引：0

作者：

Ma, Yan ^{[1
]}

Fan, Lingling ^{[1
]}

机构：

[1] Univ S Florida, Dept Elect Engn, Tampa, FL 33620 USA

来源：

2015 NORTH AMERICAN POWER SYMPOSIUM (NAPS) | 2015年

关键词：

Modular Multilevel Converter; Circulating Current Suppression Control; DC Current Ripple Control; MATLAB/Simpowersystem; Proportion Resonance Controller; HVDC; SUPPRESSION;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents a control method for MMC under unbalanced grid voltage condition. The control method regulates the power, line current, and circulating current of a MMC. Under the unbalanced condition, the objective of control is to reduce the negative-sequence line current. Furthermore, the circulating current of a MMC consists not only double-line negative-sequence component, which appears under the balanced condition, but also positive-and zero-sequence double-line components. Thus the controller should be able to eliminate all those components of the circulating current. A proportional-resonant controller (PR controller) is applied to regulate the positive-and negative-sequence components of circulating current. In addition, the zero-sequence component of circulating current is controlled by a dc current controller. The proposed control method is verified in MATLAB/SimPowerSystem.

引用

页数：6

共 16 条

[1]

[Anonymous], 2014, GeoRich@SIGMOD, DOI DOI 10.1109/PESMG.2013.6672071

[2]

Fan L., 2009, 2009 IEEE Power Energy Society General Meeting, P1

[3] A novel control scheme for DFIG-based wind energy systems under unbalanced grid conditions [J].