Title :
Dynamic quadrature booster as an aid to system stability
Author :
Fang, Y.J. ; MacDonald, D.C.
Author_Institution :
Dept. of Electr. & Electron. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
fDate :
1/1/1998 12:00:00 AM
Abstract :
Quadrature boosters (QB) have been widely used to control the power flow distribution between parallel transmission lines. The advent of very fast thyristor/vacuum switch tap changers makes the dynamic quadrature booster a powerful FACTS device for the improvement of the transient and dynamic stability of power systems. The basic concepts of the dynamic QB operation, the modelling aspects of a multimachine power system in which dynamic QB are situated, the ideal control strategy and practical considerations are presented. Simulations show that in a small, simple, power system the QB can substantially suppress disturbances before swings in load angle have become large. In a large interconnected system the action is less successful
Keywords :
control system analysis computing; flexible AC transmission systems; load flow; power system analysis computing; power system control; power system interconnection; power system stability; power system transients; power transmission lines; thyristor applications; vacuum switches; FACTS device; computer simulation; control simulation; control strategy; dynamic quadrature boosters; dynamic stability; multimachine power system; parallel power transmission lines; power flow distribution control; power system stabilisation; practical considerations; transient stability;
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings-
DOI :
10.1049/ip-gtd:19981623
