F - Mech Eng,Light,Heat,Weapons – 03 – D
Patent
F - Mech Eng,Light,Heat,Weapons
03
D
F03D 7/04 (2006.01) F03D 7/02 (2006.01) F03D 11/00 (2006.01)
Patent
CA 2429390
The present invention concerns a method of controlling a wind power installation at very high wind speeds, in which there is predetermined a first wind speed at which the rotor blades of the wind power installation are put into a first predetermined setting. The object of the present invention is therefore to provide a method of controlling a wind power installation and a wind power installation for carrying out that method, which in an extreme wind situation are in a position to reduce as far as possible mechanical loadings on the wind power installation, which occur due to that extreme wind. A method of controlling a wind power installation comprising a machine housing and a rotor with at least one rotor blade, in which the rotor of the wind power installation is put into a first predetermined position upon the attainment of a first predetermined wind speed (shut-down speed, limit speed) which is greater than 20 m/s and the machine housing (12) is put into a predetermined azimuth position upon the attainment of a second predetermined wind speed which is markedly higher than the first predetermined wind speed.
Procédé de commande d'une éolienne et éolienne permettant de mettre en oeuvre ledit procédé, cette éolienne étant en mesure, dans une situation de vents extrêmes, de réduire dans la mesure du possible les sollicitations mécaniques dues aux vents extrêmes et subies par ladite éolienne. Selon ledit procédé, le rotor de l'éolienne est placé dans une première position prédéterminée lorsque le vent atteint une première vitesse prédéfinie (vitesse de coupure ou vitesse limite) supérieure à 20m/s. Lorsque le vent atteint une deuxième vitesse prédéfinie qui est considérablement plus élevée que la première vitesse prédéfinie, la nacelle (12) est amenée dans une position azimutale prédéterminée.
Oyen Wiggs Green & Mutala Llp
Wobben Aloys
LandOfFree
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