The method involves directing an illumination beam (34) onto a rotor surface, and detecting light intensities of reflected components (36) of the illumination beam. One of the light intensities of light is re-impinged from a rotor blade (16), and the other light intensity of the light is not re-impinged from the rotor blade. A risk of icing is determined based on the detected light intensities. The illumination beam is directed toward a region (38) of a rotor disk, which is less than quarters of rotor diameter. An independent claim is also included for a wind energy plant.


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    Title :

    Verfahren zum Betreiben einer Windenergieanlage und Windenergieanlage zur Ausführung des Verfahrens


    Additional title:

    Method for operating a wind turbine and wind turbine for implementing the method
    Procédé d'exploitation d'une éolienne et éolienne destinée à l'exécution du procédé


    Contributors:

    Publication date :

    2017-03-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F03D Windkraftmaschinen , WIND MOTORS



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