LCL output filter design and the influence to the D-STATCOM compensation characteristic

Author

Xin-li, Yao ; Long-fu, Luo ; Jia-zhu, Xu ; Wen-di, Liao

Author_Institution

Coll. of Electr. & Inf. Eng., Hunan Univ., Changsha, China

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

313

Lastpage

316

Abstract

As an important dynamic compensation device, the D-STATCOM is widely used in the power system, but its output current contains a lot of high-frequency harmonic composition. The LCL filter, a typical output filter, has good filter characteristics, but the compensation characteristic of D-STATCOM has strong sensitivity to the filter parameters. The paper firstly analysis the influence caused by the components of the output filter. Considering the compensation capacity of the D STATCOM, the compensation current switching ripple, the grid THD, the resistance loss and the other factors, a method of designing LCL filter was presented, and then analysis the compensation characteristic of the D-STATCOM with the LCL filter, the results proved that the output filter designed in this method has very good inhibitory effect on high-frequency switching ripple, and greatly improved the compensation performance of the D-STATCOM.

Keywords

LC circuits; harmonic distortion; power grids; power harmonic filters; power system harmonics; static VAr compensators; D-STATCOM compensation characteristic; LCL output filter design; compensation current switching ripple; grid THD; high frequency harmonic; Active filters; Automatic voltage control; Capacitors; Power filters; Power harmonic filters; Resonant frequency; Switches; D-STATCOM; output filter; switching ripple;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Zhejiang

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6067917

Filename

6067917