VOLTAGE STABILITY ANALYSIS AND POWER OSCILLATION DAMPING USING STATIC SYNCHRONOUS SERIES COMPENSATOR (SSSC)

Abstract

This paper presents an in-depth study of voltage stability improvement as well as power oscillation damping in power systems using the Static Synchronous Series Compensator (SSSC). The SSSC is a flexible FACTS (Flexible AC Transmission Systems) device capable of improving power system stability via controlling voltage as well as damping oscillations through series compensation. We explore enough of its potential in reducing voltage instability. We explore some potential in improving the damping of power oscillations, which are important to maintaining system reliability. Through a test system simulations were done to show the performance that the SSSC has in various fault scenarios and under varied load conditions. The results do indicate that the SSSC can improve on voltage stability via regulating the transmission line voltage, and suppressing oscillations in an effective manner. Additionally, that paper discusses this integration of that SSSC with a proportional-integral (PI) controller for optimizing system stability in real-time. The simulation shows a large rise in voltage stability margins and damping traits, showing the SSSC may be a key tool for power grids.