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Grid Impact of a 5.25 MW Wind Farm near St.Anthony, Newfoundland

St. Anthony is a town on the northern peninsula of Newfoundland. This region is connected to the Newfoundland island grid through a 248 km transmission line and has one of the best wind resources in Canada. In this paper, the wind speed data of the region as well as the sizing of a grid connected wind farm at Cape Norman near St. Anthony are presented. The dynamic model of the system, wind farm and the long transmission line are included in the paper. The dynamic model is simulated using Matlab/Simulink to determine system voltage and frequency variations. The study indicates that a 5.25 MW wind farm in this region will lead to a local voltage variation of about 7% and frequency variation of 0.7 Hz for a typical wind speed variation in that region. Such variations in a remote location like St. Anthony are considered acceptable.