Siemens Aktiengesellschaft

Helmut Kölpin

Ying Li

Christian Hohmann

Andreas Christian Hohle

Brice Tchemtchoua

Claudia Kummer

Christian Becker

Matthias Wohlleb

Ivan Arthur Hede

Michaela Brasseur

A wind turbine includes a component arranged in the nacelle of the wind turbine, which component requires lubricating with a liquid lubricant. An automatic liquid lubricant changing arrangement includes a source of fresh liquid lubricant, a supply line for supplying fresh liquid lubricant from the source to the component, a waste liquid lubricant collecting unit for waste liquid lubricant, and a removal line for conveying waste liquid lubricant from the component to the waste liquid lubricant collecting unit. Moreover, a control device for such a wind turbine and a method of operating such a wind turbine are provided.

Wind turbine with an automatic liquid lubricant changing arrangement

A wind turbine including at least one component with a surface is provided. The surface is coated at least in part with a refractory layer, preferably a boron-based refractory layer. Further, a wind farm including such a wind turbine and a method are provided.

Boron-based refractory coating for a wind turbine component

A wind turbine with a drive train connecting a drive unit with a generator assembly is provided. The generator assembly includes a first generator with a first stator and a first rotor, the first rotor being directly connected to the drive train, and at least a second generator indirectly coupled to the drive train via a gear box. Further, a drive train assembly, a wind turbine nacelle system, a method for converting rotational energy into electrical energy, a method of building a nacelle and methods of re-equipping a wind turbine are provided.

Wind turbine, drive train assembly, wind turbine nacelle system, methods for converting rotational energy and methods for building a nacelle and for re-equipping a wind turbine

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Baesweiler, Germany

Helmut Kölpin