Hopf bifurcations of Subsynchronous resonance in a hybrid series compensated system with SSSC-ES

Abstract

This paper investigates the impact of static synchronous series compensator with energy storage (SSSC-ES) on Hopf bifurcations of Subsynchronous resonance (SSR). The effect of injecting real and reactive voltage by SSSC-ES on SSR is investigated using bifurcation analysis. The IEEE first benchmark model with static exciter and power system stabilizer is considered for the analysis. The results obtained are validated by eigenvalue analysis and transient simulation. The effect of adding SSSC-ES into the power system on the stability boundary is analyzed.