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US 10,502,185 B2Granted
Method for operating a wind turbine
AssigneeWobben Properties GmbH
InventorsAlfred Beekmann, Marcel Kruse
Life of this patent
Estimating the term…
Abstract
A method for operating a wind turbine is disclosed. The rotational speed and power of the wind turbine are reduced when the prevailing wind speed exceeds a predetermined first limit value. The rotational speed and power are reduced further with an increasing wind speed until the rotational speed reaches a predetermined minimum rotational speed and/or the power reaches a predetermined minimum power. The wind energy turbine maintains the minimum rotational speed, or the minimum power, if the wind speed increases even further.
Claims14
A method for operating a wind turbine comprising:
- increasing a rotational speed and a power output of the wind turbine with increasing wind speed until a prevailing wind speed reaches a rated wind speed;
- maintaining the rotational speed and the power output of the wind turbine;
- reducing the rotational speed and the power output of the wind turbine when the prevailing wind speed exceeds a predetermined first limit value;
- further reducing the rotational speed and the power output with an increasing wind speed beyond the predetermined first limit value as a function of at least one of:
- a gust intensity and a gust frequency of the prevailing wind until at least one of:
- the rotational speed reaches a predetermined minimum rotational speed and the power output reaches a predetermined minimum power;
- and
- if the wind speed further increases, maintaining at least one of the minimum rotational speed and the minimum power.
5 more elements
Dependencies are inferred from the claim text.