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.
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More From: IEE Proceedings - Generation, Transmission and Distribution
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