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This paper has analyzed the impact of large induction motors on the dynamic performance of distribution networks in the presence of a wind farm. The study is restricted to wind farms with small installed capacity compared to the local industrial plants. The results show that the technology of the wind generators and the applied control scheme have a significant influence on system stability and on the voltage recovery time. Is has been seen that even a critical wind farm technology. using squirrel cage induction generator. with the appropriate reactive power resource can improve the voltage at the power system during the starting of large motors. It has also been verified that DFIGs controlling motor terminal voltage and injecting reactive power through the grid side converter can improve system stability during the connection of large induction motors.
