Enhanced Detection and Mitigation on Sub Synchronous Resonance in Wind Farm with Series Compensated Line

Abstract

Recently, wind energy generation grows quickly because of its economical features and it has less effect on mother earth. The long-distance between generation and customer reduces the maximum transmittable power. For addressing this issue series compensation is broadly used to raise the capacity of transmission. But the insertion of capacitors has the hazardous issue of Sub Synchronous Resonance (SSR). An Enhanced Detection Technique(EDT) is used in Double Fed Induction Generator (DFIG) based wind power system connected to the series compensated line(SCL) for fast detection of SSR. Comparison of enhanced detection technique with the traditional technique validate the superiority of EDT. SSR Damping Controller (SSRDC) in the static synchronous compensator (STATCOM) is applied for mitigation of hazardous effect of SSR. The voltage signal is the input for the detection circuit and line current signal is the input for SSRDC.