General Electric Company

Christoph Hessel

Jacob Johannes Nies

Till Hoffmann

Bart Jan Veldkamp

A method is presented that reduces vibrations of a wind turbine in a situation where yawing of a wind rotor of said wind turbine is at least temporarily not possible. The method includes adjusting a first pitch angle of a first rotor blade and a second pitch angle of a second rotor blade such that the first and second pitch angles differ by at least 30 degrees.

Method for reducing vibrations in wind turbines and wind turbine implementing said method

For reduction of the noise radiation of a wind turbine with a tower () having an outside (), a noise shell () is provided, which at least partially surrounds the outside () of the tower () and is positioned at a distance from the outside () of the tower (). An air gap () remains between the tower wall () and the noise shell (). The noise emitted from the tower wall () is absorbed by the noise shell (). The noise shell can be composed of a waterproof outer layer () and a damping layer () directed towards the tower wall ().

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Meppen, Germany

Christoph Hessel