Application of Static Synchronous Series Compensator to Damp Sub-Synchronous Resonance

In this paper, a static synchronous series compensator (SSSC) is used to avoid torsional mode instability in a series compensated transmission system. The power system used in this study is the IEEE first benchmark model for sub-synchronous resonance (SSR) analysis. Simulation results in time domain using PSCAD/EMTDC presented and discussed.