The paper presents the measurements at wind power project and 220/33 kV sub-station, which is dedicated for wind power evacuation, Satara district of Maharashtra State, India for the comparison of voltage harmonics generated by grid connected wind turbines, at different voltage levels: 415 V, 33 kV and 220 kV to see the effect of voltage and short circuit level of the grid. The parameters like voltage distortion factor, harmonics and crest factor are monitored. The short circuit level of the grid network is very high than the wind power penetration into the network, the impact of wind turbines on power quality is not significant. A trend in wind power quality parameters is seen even though the measurements could not be taken simultaneously on all voltage levels.

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