Siemens Aktiengesellschaft

Siemens Gamesa Renewable Energy A/s

Aalborg University

Universal Foundation A/s

Jens Thomsen

Finn Daugaard Madsen

Kim Thomsen

Johnny Soerensen

Jan Thisted

Arne Kryger

Poul Skjaerbaek

Lars Bo Ibsen

Soeren Andreas Langbak Nielsen

Nicolai Hallum Steensgaard

Morten Kristiansen

Poul Henrik Kyvsgaard Hansen

Sigurd Villumsen

Tom Pedersen

Henrik Bach Mortensen

A method for operating at least one wind turbine is provided, the wind turbine being electrically coupled to a power-to-gas converter and an electric grid, wherein a control unit determines a power level for the power generated by at least one generator of the at least one wind turbine and at least partially feeds the generated power to the power-to-gas converter when the determined power level reaches or exceeds a given lower threshold value, wherein the amount of power fed to the power-to-gas converter is kept constant when the determined power level reaches or exceeds a given upper threshold value.

Method for operating at least one wind turbine and wind turbine or group of wind turbines

A suction bucket for a seabed foundation for an offshore facility is provided. The suction bucket is arranged for being embedded into a marine sediment. The suction bucket includes a lid and a sidewall. The sidewall is segmented into a first circumferential segment and at least a second circumferential segment. The first circumferential segment is connected with the second circumferential segment. The first circumferential segment and the second circumferential segment are attached to the lid of the suction bucket. Furthermore, the first circumferential segment and the second circumferential segment each contains at least one substantially planar section. Furthermore, a method to manufacture a suction bucket for a seabed foundation for an offshore facility is also provided.

Segmented suction bucket

A system for supporting a blade for a wind turbine, in particular a wind turbine blade having a curved portion is described. The system includes a first support arrangement with (a) a root support element adapted to support a root portion of the blade such that the root portion is rotatable about a longitudinal axis of the blade, and (b) a root elevation element adapted to adjust a vertical position of the root support element. Further, a transport vehicle for transporting a blade for a wind turbine is provided. The transport vehicle includes (a) a front platform, (b) a rear platform, and (c) a system as described above, wherein the first support arrangement is mounted at the front platform and the second support arrangement is mounted at the rear platform. Furthermore, a method of transporting a wind turbine blade having a curved portion is described.

Transportation of wind turbine blades, in particular along curved roads

A pitch bearing is described for connecting a blade of a wind turbine to a hub of the wind turbine to allow a rotation of the blade about a longitudinal axis, which pitch bearing includes a console housing arranged at a conjunction of the hub and an end section of the blade, which console housing encloses a plurality of planar sliding surfaces arranged around an opening in the hub. Further described is a wind turbine including at least one blade attached to a hub via such pitch bearing. A method of performing maintenance on a pitch bearing is described where a part of the pitch bearing is removed while leaving the blade and the remaining parts of the pitch bearing in place; and the part is replaced after a maintenance step has been carried out.

Pitch bearing

A transport system for a wind turbine blade is provided. The transport system is configured for increasing a curvature of the wind turbine blade in response to an obstacle during transport of the wind turbine blade. Further, a method for transporting a wind turbine blade in order to avoid obstacles is provided.

Transport system for a wind turbine blade

A wind turbine tower is provided, which comprises a number of segments with a polygonal cross section, each segment comprising a number of flat plates which are connected to each other so as to form the polygonal cross section. Further, a method for constructing a wind turbine tower which comprises segments assembled of flat plates is disclosed, wherein the flat plates are connected to each other so as to form segments with a polygonal cross section and the segments are connected to each other so as to form the tower.

Wind turbine tower and method for constructing a wind turbine tower

Growing community of inventors

Brande, Denmark

Jens Thomsen