Method for controlling a wind turbine and wind turbine
AssigneeWobben Properties GmbH
InventorRalf Messing
Life of this patent
Estimating the term…
Abstract
A method for controlling a wind turbine and an associated wind turbine. The wind turbine is operated according to an operating point, wherein the operating point is determined at least by a pitch angle and a tip speed ratio, wherein one of the operating points corresponds to a maximum power coefficient, wherein, in a partial load range, the wind turbine is operated at an operating point which differs from the operating point with the maximum power coefficient. The distance of the operating point from the operating point with the maximum power coefficient is set in accordance with a measured turbulence measure.
Claims14
A method for controlling a wind turbine, comprising:
- operating the wind turbine according to a first operating point, wherein the first operating point is determined at least by a pitch angle and a tip speed ratio, wherein the first operating point corresponds to a maximum power coefficient, and
- in a partial load range, operating the wind turbine at a second operating point which differs from the first operating point with the maximum power coefficient,
- wherein a distance of the second operating point from the first operating point with the maximum power coefficient is set in accordance with a measured turbulence measure and with a degree of rotor blade soiling.
A wind turbine, wherein the wind turbine is a pitch-controlled wind turbine with a variable rotational speed, the wind turbine comprising:
- a turbulence sensor configured to measure a turbulence measure;
- and
- a controller configured to control the wind turbine,
- wherein the controller is configured to operate the wind turbine according to an operating point, wherein the operating point is determined at least by a pitch angle and a tip speed ratio,
- wherein a first operating point corresponds to a maximum power coefficient,
- wherein, in a partial load range, the controller is configured to operate the wind turbine at a second operating point which differs from the first operating point with the maximum power coefficient,
- wherein the controller is configured to set a distance of the second operating point from the first operating point with the maximum power coefficient in accordance with the turbulence measure which is measured by the turbulence sensor, and
- wherein the controller is further configured to set the distance of the second operating point from the first operating point with the maximum power coefficient is set in accordance with a degree of rotor blade soiling.
Dependencies are inferred from the claim text.