Title :
Operating principles of shunt STATCOM based on 3-level diode-clamped converters
Author :
Ooi, Boon Teck ; Joos, Geza ; Huang, Xiaogang
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
fDate :
10/1/1999 12:00:00 AM
Abstract :
This paper offers a novel topology for the implementation of a shunt STATCOM based on a grouping of four three-level, diode-clamped power 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 11th and on the DC side the 12th. The proposed STATCOM can meet typical harmonic distortion requirements
Keywords :
flexible AC transmission systems; power convertors; power transformers; static VAr compensators; switching circuits; DC capacitor; direct voltage control; gating pattern; harmonic distortion requirements; line frequency; operating principles; shunt STATCOM; three-level diode-clamped power converters; wye/delta phase-shifting transformers; wye/wye phase-shifting transformers; Analog-digital conversion; Automatic voltage control; Capacitors; Diodes; Frequency conversion; Phase distortion; Shunt (electrical); Switching converters; Topology; Voltage control;
Journal_Title :
Power Delivery, IEEE Transactions on
