Abstract
In recent years, a remarkable and numerous improvements have been achieved because of electric energy generation by utilization of wind energy. However, these achievements are accompanied by several problems such as grid stability and security. The transient stability issues of the grid connected wind farms have increased especially in case of severe disturbances and contingences. The aim of this paper is to investigate the transient stability at the grid point and at point of common coupling of the proposed system in different operating conditions. A wind farm of 15 MW consisting of five wind turbines which are based on fixed speed induction generators connected to grid has been proposed. A Static Var Compensator (SVC) and Static Synchronous Compensator (STATCOM) have been attached at the transmission system for reactive power support. It was noticed from the simulation results that STATCOM and SVC have strongly supported the point of common coupling voltage and reactive power as well as the grid voltage and reactive power particularly when the system has subjected to severe disturbances. In addition, it was also noticed that STATCOM is more robust and faster than SVC in recovering the system back to a stable operation. ď€
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