Stability improvement of fixed speed induction generator based wind farm using statcom for different types of fault

As the power of wind energy system increases, the control of their active and reactive power becomes increasingly more important from a system standpoint given that these are typical frequency and voltage control parameters. This paper presents the impact of fault on the stability of fixed speed induction generator (FSIG) based wind farm connected to interconnected power system. This paper deals with voltage stability improvement of a distribution system embedded with Wind Turbine Induction Generator (WTIG) by using power electronics based Flexible AC Transmission Systems (FACTS) using Static Synchronous Compensator (STATCOM). The contribution of STATCOM to support the fixed-speed wind farm interconnected electric grid for different types of fault (L-G, L-L-G, and L-L-L-G) are investigated. The study is carried out by three-phase dynamic simulation of distribution system component models. Simulations are presented for different cases such as with and without Static Synchronous Compensator (STATCOM) for different symmetrical and unsymmetrical faults. Simulation test cases using MATLAB-Simulink are implemented on a 6 MW wind farm exports a power to 120 KV grids. The simulation results show the influence of faults on active power, reactive power, and bus voltage of the wind farm.