Voltage Stability Enhancement by Optimal Allocation of STATCOM and SVC

Abstract

: The current deregulated power system structure demands stability, accuracy and rapid response day by day. The protection and reliability of the electric power system cannot be compromised by voltage instability. Flexible AC transmission systems (FACTS) are therefore used with weak buses to recover and control voltage. Static Synchronous Compensator (STATCOM) and Static Var Compensator (SVC) provide fast working dynamic compensation when a significant fault arises. This article presents the enhancement of voltage stability by minimizing the voltage deviation of the IEEE14 bus test system. For this, the SVSI index is used with STATCOM and SVC.