In modern power system network power oscillation is a major source of concern for power utilities. Because of the
enormous demand on power system has initiated the system to load heavily which leads to voltage unbalance conditions. The
static synchronous series compensator (SSSC) is capable of delivering a compensating voltage with an inductive and capacitive
range. SSSC is a FACTS device which is used to increase the power system capacity and system stability. SSSC has a voltage
source converter, dc capacitor and a series transformer which injects voltage in series with the transmission line. SSSC-based
power oscillation damping (POD) controller is proposed to eliminate the power oscillation damping in power system and
enhance the transient stability. Also, controller used here for controlling SSSC is hysteresis controller and lead lag controller to
enhance the dynamic response of the system.
