Method and device for braking the rotor of a wind energy plant

Details Method and device for braking the rotor of a wind energy plant Method and device for braking the rotor of a wind energy plant

F - Mech Eng,Light,Heat,Weapons

03

D

F03D 7/02 (2006.01)

Patent

CA 2601675

The invention relates to a method and device for braking the rotor of a wind energy plant, comprising rotor blades (3) mounted to rotate on the rotor with electrical devices in the rotor hub (2), such as an actuator (4, 5) for the rotation of the rotor blades (3), whereby on drop-out of the power supply to the electrical devices (4, 5), a rotor brake is activated (11), whereupon the rotor blades (3) as a result of the braking torque of the rotor brake (11) are rotated into the feathered position by means of the inertia thereof.

Procédé et dispositif permettant de faire freiner le rotor d'une éolienne pourvue de pales (3) montées rotatives sur le rotor, de dispositifs électriques placés dans le moyeu (2) du rotor tel qu'un mécanisme d'entraînement (4, 5) destiné à faire tourner les pales (3) du rotor. En cas de défaillance de l'alimentation électrique des dispositifs électriques (4, 5), un frein (11) de rotor est activé, les pales (3) du rotor étant alors tournées par leur inertie dans la position de mise en drapeau en raison du couple de freinage du frein (11) de rotor.

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