Patent ID: 11952980
Assignee: WOBBEN PROPERTIES GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 4:
5. The method as claimed in claim 1, wherein
the at least one speed range is respectively provided as a speed avoidance range and has a lower avoidance speed and an upper avoidance speed;
the speed-power control is used if the lower avoidance speed is reached when there is increasing rotational speed or the upper avoidance speed is reached when there is decreasing rotational speed;
when using the speed-power control, the wind power installation, depending on a prevailing wind speed:
is operated at a first operating point in a first speed range that includes the lower avoidance speed, and
is operated at a second operating point in a second upper speed range that includes the upper avoidance speed; and

switching between the first operating point and second upper operating point is performed depending on an aerodynamic evaluation of the first operating point and the second operating point.