Wind generator stability by using STATCOM

Recently, Flexible AC Transmission System (FACTS) - based devices have been used for power flow control and for damping power system oscillations. They can also be used to increase transmission line capacity; steady state voltage regulation; provide transient voltage support to prevent system collapse; and damp power oscillations. FACTS devices can be used in wind power systems to improve the transient and dynamic stability of the overall power system. Because of the asynchronous operation nature, system instability of wind farms based on FSIG is largely caused by the reactive power absorption by FSIG (Fixed Speed Induction Generator) due to the large rotor slip during fault. The Static Synchronous Compensator (STATCOM) which is from the family of FACTS devices can be used effectively in wind farms based on FSIG to provide transient voltage and to improve wind farm stability. In other words a STATCOM is an electronic generator of reactive power.