Operating principles of shunt STATCOM based on 3-level diode-clamped converters

Author

Ooi, Boon Teck ; Huang, Xiaogang ; Joos, Geza

Author_Institution

Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada

Volume

2

fYear

1999

fDate

31 Jan-4 Feb 1999

Abstract

Summary form only given. This paper offers a novel topology for the implementation of a shunt STATCOM based on a grouping of four 3-level, diode-clamped converters, switching at line frequency and coupled to the AC system through wye/wye and wye/delta phase-shifting transformers. Advantages include direct voltage control through the gating pattern and reduced size of DC capacitor. The dominant harmonic on the AC side is the 11^th and on the DC side the 12^th. The proposed STATCOM can meet typical harmonic distortion requirements.

Keywords

diodes; harmonic distortion; phase shifters; power conversion harmonics; power convertors; power system control; power transformers; static VAr compensators; switching circuits; voltage control; 3-level diode-clamped converters; AC system; DC capacitor size reduction; direct voltage control; dominant harmonic; gating pattern; harmonic distortion requirements; line frequency switching; operating principles; shunt STATCOM; wye/delta phase-shifting transformers; wye/wye phase-shifting transformers; Automatic voltage control; Capacitors; Diodes; Frequency conversion; Shunt (electrical); Switching converters; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society 1999 Winter Meeting, IEEE

Print_ISBN

0-7803-4893-1

Type

conf

DOI

10.1109/PESW.1999.747412

Filename

747412