| 摘要 |
The invention relates to a wind energy plant with an asynchronous machine for determining the azimuth position of the power house of the wind energy plant. The invention describes a drive for determining the azimuth position of the power house of the wind energy plant, wherein the drive eliminates backlash of the mechanical components in a given target position, without causing mutual influence between the desired braking moment and the elimination of the backlash. According to the invention, the above-mentioned asynchronous machine has a second rotor/stator arrangement (22, 24), which is electrically separated from the first rotor/stator arrangement (12, 14), wherein the rotor of the second rotor/stator arrangement is also connected to the shaft. The rotor/stator arrangement is charged with a d.c. current in the desired direction in order to create the desired braking moment, while the second rotor/stator arrangement is charged with an a.c. current which creates a turning moment in the direction of the rotating field, thereby activating the drive.
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