Authors : D. Murali and M. Rajaram
Abstract: This study concentrates on studying the effects of two Flexible AC Transmission System (FACTS) devices, namely Static Synchronous Compensator (STATCOM) and Static Synchronous Series Compensator (SSSC) on power system electromechanical oscillation damping. The study is based on the concept that the rate of dissipation of transient energy is used as a measure of system damping. The proposed technique of evaluating system damping is studied for a Single Machine Infinite Bus (SMIB) system installed with STATCOM and SSSC. The damping of power oscillations of a two-machine system by a Power Oscillation Damping (POD) controller for FACTS devices is also described. Results from analytical and digital simulation studies reveal that the series connected SSSC is more effective than the shunt connected STATCOM on damping power system oscillations.
D. Murali and M. Rajaram, 2009. Transient Energy Analysis for STATCOM and SSSC Applications. International Journal of Electrical and Power Engineering, 3: 191-197.