DIRECT-DRIVE WIND TURBINE

摘要

A direct driven wind turbine and the main bearing used in such a wind turbine is provided. The rotating drive train is connected with a stationary part of the wind turbine via at least one bearing, which allows the rotation of the drive train in relation to the stationary part. The at least one bearing is a plain bearing; the bearing comprises at least one cylindrical sliding surface constructed to support radial loads present in the drive train. The bearing comprises at least two radial bearing surfaces constructed to support axial loads and bending moments present in the drive train. The surface areas of the radial bearing surfaces is dimensioned proportional to a predetermined maximum total load of the bending moments expected in the drive train.

主权项

1. A direct-drive wind turbine comprising:
a rotor of the direct-drive wind turbine directly connected with a rotating drive train of the wind turbine, wherein the rotating drive train is directly connected with a rotor of an electrical generator of the direct-drive wind turbine; wherein the rotating drive train is connected with a stationary part of the direct-drive wind turbine via at least one bearing, which allows a rotation of the rotating drive train in relation to the stationary part; wherein the at least one bearing is a plain bearing the at least one bearing comprises at least one cylindrical sliding surface constructed to support radial loads present in the rotating drive train; wherein the at least one bearing comprises at least two radial bearing surfaces with a surface area constructed to support axial loads and bending moments present in the rotating drive train, wherein the surface areas of the at least two radial bearing surfaces is dimensioned proportional to a predetermined maximum total load of the bending moments expected in the rotating drive train.