Mitigation of Sub Synchronous Resonance in a Series Compensated Wind Farm Using SVC
Keywords:
First benchmark model (FBM), single cage induction generator (SCIG), sub synchronous resonance (SSR), static var compensator (SVC)Abstract
Series compensation is a well known technology which is used to increase the power transfer
capability of the transmission lines. When the level of series compensation is more, it causes
sub synchronous resonance. This paper presents a study of sub synchronous oscillations due
to torsional interactions and induction generator self-excitation effects in a wind farm. Sub
synchronous resonance will affect the system if adequate control measure is not taken. A
static var compensator (SVC) with a voltage controller is connected at the induction
generator terminal to damp the sub synchronous oscillations. Time domain simulations are
carried out using EMTDC/PSCAD to validate the result.
