| 摘要 |
The invention relates to a wind energy installation ( 10 ) having a rotor ( 18 ) which can be driven by wind and has at least one rotor blade ( 22 ), having a generator for conversion of the mechanical energy of the rotor ( 18 ) to electrical energy, and having a tower ( 14 ) on which the rotor ( 18 ) is arranged, in which the rotor blade ( 22 ) has one or more additional masses ( 36, 40 ) and/or active and/or passive oscillation dampers ( 24 ), which are designed in such a manner that movements of the rotor blade ( 22 ), in particular oscillations, which are initiated by external influences and are directed towards the tower or away from it are prevented and/or damped. The invention also relates to a method for operation of a wind energy installation, preferably of an off-shore wind energy installation, in which one or more components of the wind energy installation, preferably the tower ( 14 ), have opposing vibration applied to them in order to reduce/prevent sound waves which result from component vibration and disturb animals and/or people, which opposing vibration counteracts vibration (which produces sound) of the component ( 14 ), and reduces or prevents this component vibration.
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