A method for de-icing a blade of a wind turbine, a wind...

F - Mech Eng,Light,Heat,Weapons – 03 – D

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F03D 11/00 (2006.01) F03D 7/02 (2006.01)

Patent

CA 2701223

The invention relates to a method for de-icing a blade (5) of a wind turbine (1), after the wind turbine (1) has been idle for a period of time. The method comprises the steps of .cndot. creating a controlled acceleration condition of the blade (5), and .cndot. subsequently creating a controlled deceleration condition of the blade (5), whereby ice is shaken of the blade (5). The in-vention further relates to a wind turbine (1) comprising a rotor including at least one blade (5), and de-icing means for de-icing the blade (5) wherein the de- icing means comprises actuating means (19) of the wind turbine (1) and wherein the de-icing means further includes control means for performing a method according to any of claims 1 to 11. Furthermore, the invention relates to use of a wind turbine.

L'invention concerne un procédé de dégivrage d'une pale (5) d'éolienne (1), après que cette éolienne (1) a été inactive pendant un certain temps. Ce procédé comprend les étapes consistant à créer une condition d'accélération contrôlée de la pale (5), puis à créer une condition de décélération contrôlée de cette pale (5), la glace est ainsi expulsée de la pale (5). L'invention concerne, en outre, une éolienne (1) comprenant un rotor équipé d'au moins une pale (5), et des moyens de dégivrage destinés à dégivrer la pale (5), les moyens de dégivrage comprenant des moyens de commande destinés à mettre en oeuvre un procédé selon l'une quelconque des revendications 1 à 11. L'invention concerne enfin l'utilisation d'une éolienne.

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