Mitigate voltage sag and swell in transmission line by using SEN Transformer

Abstract

Many different Flexible AC Transmission Systems (FACTS) devices have been studied in the literature in order to control the flow of power through transmission lines.  The SEN Transformer (ST) proposed in the research literature [1] uses transformer technology to independently control the active and reactive power in a transmission line. Power flow control is essential to ensure preserving lines loading security, mange the congestion of power system, alleviate line overload, and semi-equally utilize the available transmission lines as far as possible. The traditional technology of transformer and tap changer is used to implement this novel technique. A “SEN” Transformer (ST) uses transformer and tap changers that are traditionally used to build a voltage-regulating transformer.