ADJUSTMENT AND/OR DRIVE UNIT, WIND TURBINE HAVING SUCH AN ADJUSTMENT AND/OR DRIVE UNIT, AND METHOD FOR CONTROLLING SUCH AN ADJUSTMENT AND/OR DRIVE UNIT

• Main Authors: MÜLLER, Johannes, DAHL, Martin, WENNHELLER, Oliver, CHRIST, Clemens, FENKER, Oliver
• Format: Patent
• Language: English; French; German
• Published: 18.11.2020
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention relates to adjustment and/or drive units that can be used in wind turbines to set the azimuth angle of the wind turbine nacelle or the pitch angle of the rotor blades. Such an adjustment and/or drive unit has at least two actuating drives for rotating two assemblies, which are mounted for rotation relative to each other, and has a control device for controlling the actuating drives, which control device controls the actuating drives in such a way that the actuating drives are braced in relation to each other during the rotation of the two assemblies and/or at a standstill of the assemblies. The invention further relates to a wind turbine having such an adjustment and/or drive unit and to a method for controlling such an adjustment and/or drive unit. According to the invention, the actuating drives are connected for communication with other each other and each have a control module for the decentralized adjustment of the provided torque in accordance with load signals of load-determining devices, which determine the individual load of each actuating drive, wherein said control modules of the actuating drives are configured to change, upon receipt of a load signal from another actuating drive that indicates that overloading of said other actuating drive has been reached, its own torque by an auxiliary torque amount in order to relieve said other actuating drive.