Wind turbine and operating method thereof
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United States of America Patent
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Feb 14, 2012
Grant Date -
Mar 20, 2008
app pub date -
Aug 20, 2007
filing date -
Sep 20, 2006
priority date (Note) -
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Abstract
A pitch controller, uninterruptible power supply, and rotational speed detector are disposed in the rotor in a wind turbine. When a slip ring failure or wire breakage occurs, the pitch controller internally creates a pitch angle command so as to control the pitch angle.
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