Yaw Drives and Turbines
Location: Outside U.S.
Date: Fall 2009
How do Yaw drives in wind turbines work? (How do they know
which way the wind is blowing?)
This URL also has a really good drawing that can be enlarged by clicking on
This URL also has drawings that also show a wind vane that senses the
direction of the wind
And sends signals to the yaw motor.
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Update: June 2012