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/* Wind Turbine Control Systems */
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|rowspan="2" align = "center" bgcolor = "#83caff"|'''Description'''
| A method of controlling the speed of a wind turbine by varying the orientation, or pitch, of the blades, and thereby altering its aerodynamics and efficiency.
Source:[http://www.moog.com/markets/energy/wind-turbines/blade-pitch-control/ Blade Pitch Control]
| The rotation of horizontal axis wind turbine around its tower to orient the turbine in upwind or down wind direction.
Source:[http://zone.ni.com/devzone/cda/tut/p/id/8189 Wind Turbine Control Methods]
|Stall control works by increasing the angle at which the relative wind strikes the blades (angle of attack). As the wind speed increases drag force on the blade increase and lift force gets reduces, thus finally reduces the speed of turbine.A fully stalled turbine blade, when stopped, has the flat side of the blade facing directly into the wind. Compare with furling.
Source[[Media:windenergycontrol.pdf|Wind Energy Control]]
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|[[Image:pitch.jpg|thumb|center|175px|Fig 16(a) '''[http://zone.ni.com/devzone/cda/tut/p/id/8189 Pitch control]''']]
|[[Image:Yaw.jpg|thumb|center|175px|Fig 16(b) '''[http://zone.ni.com/devzone/cda/tut/p/id/8189 Yaw control]''']]
|allignalign='"center" | NA|allignalign='"center" | NA
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