System and Method for Detecting a Pitch Fault in a Wind Turbine Via Voltage, Current, Torque, or Force Monitoring
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United States of America
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Issued Date -
Jan 23, 2020
app pub date -
Jul 17, 2018
filing date -
Jul 17, 2018
priority date (Note) -
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Abstract
A method for reducing loads of a wind turbine includes determining an operational state of the wind turbine. The method also includes commanding a predetermined pitch event. Further, the method includes monitoring at least one operating condition of a pitch drive mechanism of a rotor blade of the wind turbine during the predetermined pitch event. If the operational state corresponds to a predetermined operational state and the operating condition(s) follows a pitch fault pattern during the predetermined pitch event, the method also include yawing a nacelle of the wind turbine away from an incoming wind direction.
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