Study of the implementation of STATCOM on DFIG-based wind farm connected to a power system

The integration of Doubly Fed Induction Generator (DFIG) based wind farm into the power grid has become a major concern for power system engineers today. Voltage stability is a key factor to maintain DFIG-based wind farm in service during the grid disturbances. This paper investigates the implementation of STATCOM to overcome the voltage stability issue for DFIG-based wind farm connected to a distribution network. The study includes the implementation of a static synchronous compensator (STATCOM) as a dynamic reactive power compensator at the point of common coupling to maintain stable voltage by protecting DFIG-based wind farm interconnected to a distribution system from going offline during and after the disturbances. The developed system is simulated in MATLAB/Simulink and the results show that the STATCOM improves the transient voltage stability and therefore helps the wind turbine generator system to remain in service during grid faults.