Design and analysis of SVC using System Identification

The Flexible AC Transmission System (FACTS) technology is a auspicious technology to achieve complete deregulation of power system based on power electronic devices. Static VAR Compensator (SVC) is one of the shunt connected devices, which can be utilized for the purpose of voltage and reactive power control in power systems.This paper deals with the analysis, design and of TCR based reactive power compensation and voltage regulation.Topology for closed loop reactive power compensation suitable for dynamic loads using TCR is presented. Firing angle range of TCR is selected in such a way that to keep the harmonic content at minimum level. Another approach to achieve the complete closed loop control of TCR is by using system identification. By proper linearization of TCR characteristics we can find different transfer function for linear ranges using system identification toolbox in MATLAB. The dynamic equations for TCR SVC model will be presented in the form of transfer function.