System and Method for Reducing Torsional Movement in a Wind Turbine Tower
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United States of America Patent
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Issued Date -
Dec 8, 2016
app pub date -
Jun 3, 2015
filing date -
Jun 3, 2015
priority date (Note) -
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Abstract
The present disclosure is directed to a system and method for reducing vibrations of a tower (e.g. a tubular steep tower or a lattice tower structure) of a wind turbine. The method includes continuously determining a torsional movement of the tower based at least in part on measurements obtained from one or more sensors. Another step includes continuously determining, via a controller, a control command for one or more pitch drive mechanisms of the wind turbine based on the torsional movement. Thus, the method also includes operating the one or more pitch drive mechanisms based on the control command so as to dampen the torsional movement of the tower.
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