Fluid reaction surfaces (i.e. – impellers) – Method of operation
Reexamination Certificate
2007-02-13
2007-02-13
Verdier, Christopher (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Method of operation
C416S031000, C416S032000, C416S035000, C416S036000, C416S037000, C416S041000, C290S055000
Reexamination Certificate
active
10880731
ABSTRACT:
A method for reducing peak loads of wind turbines in a changing wind environment includes measuring or estimating an instantaneous wind speed and direction at the wind turbine and determining a yaw error of the wind turbine relative to the measured instantaneous wind direction. The method further includes comparing the yaw error to a yaw error trigger that has different values at different wind speeds and shutting down the wind turbine when the yaw error exceeds the yaw error trigger corresponding to the measured or estimated instantaneous wind speed.
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Armstrong Teasdale LLP
General Electric Company
McGinness, Esq. James E.
Verdier Christopher
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