STRATÉGIE DE COMMANDE DE FREIN DE SÛRETÉ D'ÉOLIENNE

摘要

A method is provided for braking a rotor of a wind turbine. The rotor comprises rotor blades. The wind turbine comprises a pitch adjustment system for adjusting a pitch of the rotor blades. The method comprises detecting a system failure of the pitch adjustment system, estimating a current wind speed, estimating an available brake torque and estimating a required brake torque, based on the estimated current wind speed. The method further comprises determining a suitable point in time for activating a rotor brake based on the estimated available brake torque and the estimated required brake torque. The rotor brake is then activated at the determined suitable point in time.