METHOD AND DEVICE FOR DETERMINING AN ICED CONDITION OF A WIND TURBINE BLADE

It is described a method and a device for determining an iced condition of a blade (6) of a wind turbine (1). A target nacelle displacement (DXTABLE) along a rotational axis (8) is acquired as a function of at least one predetermined parameter (A) in an ice-free condition of the blade (6); an actual...

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Bibliographische Detailangaben
Hauptverfasser:	BELMONTE DE UDAONDO, Esteban, MIQUELEZ MADARIAGA, Irene, VITAL AMUCHASTEGUI, Pablo, ELSO TORRALBA, Jorge, SAENZ AGUIRRE, Aitor
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	It is described a method and a device for determining an iced condition of a blade (6) of a wind turbine (1). A target nacelle displacement (DXTABLE) along a rotational axis (8) is acquired as a function of at least one predetermined parameter (A) in an ice-free condition of the blade (6); an actual nacelle displacement (DXFILT) along the rotational axis (8) is measured by a displacement sensor (9); and the iced condition of the blade (6) is determined if a difference between the target nacelle displacement (DXTABLE) and the actual nacelle displacement (DXFILT) exceeds a predetermined threshold value.