Transient stability enhancement of power system equipped with power system stabilizer by static VAR Compensator

The use of power systems as close to their operating limits can cause instability if a disturbance is occurred. The damping of the system´s oscillations can be obtained by conventional means such as voltage and speed regulation but also by Flexible AC Transmission System devices (FACTS). These devices are increasingly used in power systems. In this work, the Static VAR Compensator (SVC) was employed to improve power system transient stability. The optimal design of the compensator provides a better improvement of transient stability.