Case studies: Interconnection of wind turbines on distribution circuits

Three case studies of proposed wind turbines connected to distribution feeders provide examples of how to efficiently conduct impact studies. In all three cases, the wind turbines are large enough that some engineering analysis was required. To address flicker concerns, power quality monitoring is recommended before and after the wind turbines are connected. Voltage fluctuations can be reduced if the wind turbines absorb some reactive power. Some applications require protective relay functions beyond the minimums identified in IEEE Standard 1547.