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

US8186948B2 · kind B2 · utility

Assignee

• Nordex Energy GmbH · DE

Inventors

• Wolfgang Kabatzke · Geesthacht, DE
• Gerd Hose · Preetz, DE

Key dates

• Filing date: Feb 5, 2009
• Grant date: May 29, 2012
• Expiry date: Oct 15, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/72
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

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.