Siemens Aktiengesellschaft

Siemens Aktiengesellscaft

Samuel H Hawkins

A method for determining a yaw direction of a wind turbine includes the following steps, receiving at a component of the wind turbine a signal broadcasted from a source, determining a direction from the component towards the source based on the received signal, determining the yaw direction of the wind turbine in relation to the determined direction towards the source is provided. Further, a wind turbine and a device as well as a computer program product and a computer readable medium are disclosed for performing the method.

Determining a yaw direction of a wind turbine

A method for operating a direct drive wind turbine including determining a temperature difference between at least two components of a bearing, comparing the temperature information with an upper threshold temperature difference between the at least two components of the bearing, limiting rotational speed of a rotor and/or an at least one rotatably supported wind turbine component coupled to the rotor to a value unlike zero yet, below a wind turbine specific nominal rotational speed of the rotor and/or below the wind turbine specific nominal rotational speed of the at least one rotatably supported wind turbine component coupled to the rotor and/or limiting electric power output of the generator to a value unlike zero yet, below a wind turbine specific nominal electric power output of the generator, if the temperature difference between the at least two components of the bearing increases above the upper threshold temperature difference, is provided.

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Sheffield, United Kingdom

Samuel H Hawkins