That is why wind turbines use induction motors as induction generators. wind turbines can"t make power unless they are connected to live utility lines to provide reactive power. A whole field full of dozens of 2.5MW wind turbines are difficult to connect to the grid. Protection and control "P&C" values for frequency, under voltage, over voltage and over current . Have to be "de-sensitized" , re calibrated to reduce trips . Problem is the turbines are not synced together and thier individual output varies with wind gusts. they will every now and again all either push a burst of power together. Or all hit a lull together. One of the reasons why the utility would rather connect turbines to small 27 , 44, 115 KV lines. Instead of the main distribution backbone of 230 or 500KV lines.
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Today's Featured Article - Threshin Demonstration - by Michael Delaney. Introduction I bring you greetings from Prince Edward Island, Canada. We are Canada�s smallest province but big on farming. Maybe you�ve heard of us. Potatoes are our biggest crop. However, there is lots of mixed farming here also. I have a small mixed farm with 25-30 cattle. I make very good use of old machinery. I have a 135 MF Diesel, Farmall H and 1/3 share in an Allis B. I have complete lines of tillage and harvest equipment, and a saw gear etc. I have everything one would
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