DEVELOPMENT OF EFFICIENT WIND FARMS BASED ON SQUIRREL CAGE INDUCTION GENERATOR AND DOUBLY-FED INDUCTION GENERATOR WITH STATIC VAR COMPENSATOR (SVC)

Abstract

Squirrel Cage Induction Generators (SCIG) and Dual Power Induction Generators (DFIG) are the main types of generators used in wind farms. The impact of a grid disturbance on wind farms differs according to the type of generator used in the wind farm. The high reactive power requirement can lead to the disconnection of the SCIG generators from the grid during grid disturbances. DFIG wind turbines are considered to be of the modern type, but they are more expensive than SCIG wind turbines. DFIG wind turbines can provide voltage support to the grid during faults, but they suffer a reduction to zero in their output power without disconnecting the wind farm from the grid. With the progress of FACTS technology, the performance of wind farms using these devices has been improved.