Nordex Energy Gmbh

Gerd Hose

Ulrich Harms

Wolfgang Kabatzke

Thomas Frese

Lars-Ulrich Wiese-Muller

Volker Arlt

Guillaume Steinmetz

Lars-Ulrich Wiese-Müller

A method is provided for operating a wind turbine having an elongated stand apparatus, a generator rotatably mounted on the stand apparatus, and a rotor coupled to the generator via a rotor hub and the wind turbine also having an elongated rotor blade. A position of a radar system is determined with respect to the wind turbine and at least one area is determined for the rotational axis of the rotor as a function of the determined position which is not intended to be permanently assumed for alignment of the rotational axis of the rotor about the longitudinal axis of the stand apparatus. The wind turbine is operated with the at least one determined area not being permanently assumed for the alignment of the rotational axis of the rotor about the longitudinal axis of the stand apparatus.

Method for operating a wind turbine, arrangement and system

A wind energy plant with a nacelle, a rotor, which features at least one rotor blade adjustable in its blade pitch angle, a central control device for controlling the wind energy plant and a control unit disposed in the rotor for controlling the blade pitch angle of the at least one rotor blade, wherein the central control device and the control unit in the rotor can exchange data with each other via a data link, which comprises at least one first sending and receiving device at the nacelle side and at least one second sending and receiving device at the rotor side, wherein a wireless network connection with a safety-oriented communication protocol is provided between the at least one first sending and receiving device and the at least one second sending and receiving device, and that one monitoring- and communication device at a time is associated to the first and/or the second sending and receiving device, which can monitor the function of the sending and receiving device and initiate a predetermined action in the case of an error.

Wind energy plant with a central control device and a control unit in the rotor and method for the operation of such a wind energy plant

The present invention is related to a method for controlling a wind energy plant, with a nacelle disposed on a tower and with a rotor with at least one rotor blade, the blade adjustment angle of which can be adjusted by means of a blade adjustment equipment. The objective to provide a reduction of the loads acting on the plant when there is a malfunction of the blade adjustment equipment is resolved according to the present invention in that the function of the blade adjustment equipment is monitored, and when an error of the blade adjustment equipment occurs, the nacelle is rotated from an operating position into a rest position, in which there is a flow of the wind against the surface extended by the at least one rotor blade () in a rotation of the rotor which is reduced with respect to the operating position.

Method for controlling a wind energy plant

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Preetz, Germany

Gerd Hose