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

Volume

19

Issue

3

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

1410

Lastpage

1418

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;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2004.829953

Filename

1308374