Methods and apparatus for rotor blade ice detection

Details Methods and apparatus for rotor blade ice detection Methods and apparatus for rotor blade ice detection

2006-08-08

2006-08-08

Nguyen, Ninh H. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Method of operation

C416S035000, C416S037000, C416S039000, C416S061000

Reexamination Certificate

active

07086834

ABSTRACT:
A method for detecting ice on a wind turbine having a rotor and one or more rotor blades each having blade roots includes monitoring meteorological conditions relating to icing conditions and monitoring one or more physical characteristics of the wind turbine in operation that vary in accordance with at least one of the mass of the one or more rotor blades or a mass imbalance between the rotor blades. The method also includes using the one or more monitored physical characteristics to determine whether a blade mass anomaly exists, determining whether the monitored meteorological conditions are consistent with blade icing; and signaling an icing-related blade mass anomaly when a blade mass anomaly is determined to exist and the monitored meteorological conditions are determined to be consistent with icing.

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patent: WO 01/33075 (2001-05-01), None

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