Voltage stability enhancement using svc in pscad software

Abstract

In the modern power system, the need for flexibility, accuracy and fast response is growing every day. Voltage instability affects the system’s reliability and security. FACTS devices are used to restore voltage and to control the weak bus. SVC provides the fast acting dynamic compensation in case of severe fault. This paper is focused on voltage stability improvement of IEEE-14 bus test system. Simplified voltage stability index (SVSI) is calculated to identify the weakest bus of the system. All the analysis is being performed using PSCAD simulation software.