Vector analysis and control of advanced static VAr compensators

Author

Schauder, C. ; Mehta, H.

Author_Institution

Westinghouse STC, Pittsburgh, PA, USA

Volume

140

Issue

4

fYear

1993

fDate

7/1/1993 12:00:00 AM

Firstpage

299

Lastpage

306

Abstract

The advanced static Var compensator (now widely known as the static condenser or STATCON) uses a high power self-commutating inverter to draw reactive current from a transmission line. Two fundamentally different types of invertor can be used for this purpose, one providing control of output voltage magnitude and phase angle, and the other having only phase angle control. For each of these types, the governing equations are derived, and frequency domain analysis is used to obtain the relevant transfer functions for control system synthesis. Further analysis is provided to determine the response of the STATCON to negative sequence and harmonic voltage components on the transmission line. The results are illustrated with measured waveforms obtained from a scaled analogue model of an 80 MVAr STATCON

Keywords

commutation; compensation; control system synthesis; invertors; phase control; power system control; power transmission lines; reactive power; static VAr compensators; transfer functions; voltage control; 80 MVA; STATCON; control system synthesis; frequency domain analysis; harmonic voltage; negative sequence voltages; phase angle control; power system control; reactive power compensation; response; self-commutating inverter; static VAr compensators; static condenser; transfer functions; transmission line; vector control; voltage control;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings C

Publisher

iet

ISSN

0143-7046

Type

jour

Filename

223818