Patent ID: 9234505
Filing Date: 2016-01-12
CPC Classification: F03D,F05B,Y02E

Claim Text:
1. A damper system of a direct driven wind turbine, the direct driven wind turbine including a nacelle, a rotor hub, and an electric generator, the electric generator comprising a rotor and a non-rotating part, the rotor hub being connected to the rotor of the electric generator, wherein the non-rotating part is connected to the nacelle, the damper system comprising: a liquid damper, wherein the damper system of the direct driven wind turbine at least partially eliminates an unwanted movement of the direct driven wind turbine resulting from wind loads; wherein the damper system is disposed within a cavity of a hollow shaft of the non-rotating part of the electric generator of the direct driven wind turbine; and wherein the liquid damper is mounted to a side wall of the non-rotating part of the electric generator.