Abstract: As a promising renewable alternative, the wind power is one of the significant source of generation. In this paper, the importance of renewable energy source i.e. wind energy is being explained. There are many power quality issues pertaining when wind energy is connected to the grid. For example voltage sag, swells, harmonics, flicker etc. Inorder to mitigate these issues, various techniques have been explained in the paper like association of N-Aerogenerators with permanent Magnetic Synchronous Generator (PMSG), UPQC, Vector Control Strategy, IPQC, STATCOM, Active Power Filter etc. From the papers it can be seen that voltage variations and load current harmonics are the two critical issues responsible for deterioration of Power Quality.

Keywords: Wind Energy, Aerogenerators, PMSG, UPQC.