Enhanced Utilization of the Transmission Line by using FC–TCR based SVC System

Abstract

For the steady operation of the electrical power system control over reactive power flow is of great importance, as its correct handling not only maintain the system voltages constant but can also increase the stability margin for the existing transmission system. An application of the Fixed Capacitor–Thyristor Controlled Reactor (FC–TCR) type Static VAR Compensator (SVC) for increased power handling capacity and improved voltage regulation is presented in this paper. The system under consideration is an interconnected 220KV transmission network in Sindh, Pakistan. Key objective of the study is to enhance the utilization capacity of the installed transmission system by allowing the increased active and reactive power flows over the same line and to improve the system voltages under various loading conditions. Simulation work is carried out in MATLAB/SIMULINK environment.