METHOD FOR CONDITION MONITORING A ROTOR OF A WIND ENERGY PLANT

摘要

The invention relates to a method for condition monitoring a rotor of a wind energy plant. The method comprises the steps of measuring activity signals of the blades in said rotor and establishing one or more differential values between the activity signals of different blades. The one or more differential values are used for monitoring the condition of the rotor in the wind energy plant. The invention also relates to a wind energy plant, a cluster of wind energy plants and use hereof.