Title :
A linear frequency-domain model of a STATCOM
Author :
Wood, Alan R. ; Osauskas, Chris M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Canterbury, Christchurch, New Zealand
fDate :
7/1/2004 12:00:00 AM
Abstract :
A linear frequency-domain model of a static VAr compensator (STATCOM) is presented. Large signal transfers are derived to determine characteristic harmonics, and small-signal transfers are derived to determine noncharacteristic harmonics. Harmonic transfers are also derived for phase-locked loop and reactive power controls, and the response of a controlled STATCOM to a negative sequence fundamental frequency imbalance is demonstrated. As the model is linear, it is very computationally efficient, and is well suited to analysis of large networks with a number of similar connected FACTs devices. The importance of including full control dynamics for harmonic analysis is also clearly shown.
Keywords :
PWM power convertors; flexible AC transmission systems; frequency-domain analysis; harmonic analysis; phase locked loops; power transmission control; reactive power control; static VAr compensators; FACTS devices; STATCOM; harmonic transfer; linear frequency-domain model; negative sequence fundamental frequency imbalance; phase locked loop; reactive power control; signal transfer; static VAr compensator; Automatic voltage control; Converters; Frequency; Harmonic analysis; Phase locked loops; Power conversion; Power system harmonics; Reactive power control; Static VAr compensators; Switching circuits; Control; FACTS; STATCOM; VSC; harmonics; linear; modeling;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2004.829953
