US Patent 9518561 Method for the operation of a wind turbine

The invention relates to a method for operating a wind turbine comprising an aerodynamic rotor that has at least one rotor blade. Said method comprises the steps of operating the wind turbine at an operating point that depends on the wind speed, detecting an operating parameter of the operating point, comparing the detected operating parameter with a predetermined reference quantity, and heating the at least one rotor blade when the detected operating parameter exceeds a predetermined variation from the reference quantity, the operation of the wind turbine being continued.