Wind turbine

摘要

The invention concerns a wind turbine comprising a tower (23), on top of the tower a nacelle (29) supported by a vertical drum (24) enclosing an upper room (52), a rotor rotating with a more or less horizontal shaft (32) supported in bearings (17, 31) mounted in the nacelle with at one end a hub (3) with turbine blades (5) and at the other end a generator rotor (27) rotating with a narrow gap (44) inside a generator stator (11), the generator stator being mounted with its outer surface against an outer wall (9) of the nacelle (29), which outer wall might have cooling strips (37) or similar on its outer surface. In accordance with the invention the wind turbine comprises a first cooling system for cooling the part (19) of the outer surface of the generator stator (11) and/or of the outer wall (9) of the nacelle (29) located in the upper room (52).

主权项

1. Wind turbine comprising a tower (23), on top of the tower a nacelle (29) supported by a vertical drum (24) enclosing an upper room (52), a rotor rotating with a more or less horizontal shaft (32) supported in bearings (17,31) mounted in the nacelle with at one end a hub (3) with turbine blades (5) and at the other end a generator rotor (27) rotating with a narrow gap (44) inside a generator stator (11), the generator stator being mounted with its outer circumferential surface against an outer wall (9) of the nacelle, the generator stator being positioned on top of the vertical drum with a central axis of the tower crossing the generator stator, the vertical drum having a top edge enclosing part of the outer surface of the generator stator and/or of the outer wall of the nacelle mounted against the outer surface of the generator stator, wherein the wind turbine comprises a first cooling system for cooling said part (19) of the outer surface of the generator stator (11) and/or of the outer wall (9) of the nacelle (29), said cooling system being located in the upper room (52) and comprising one or more channels to guide a cooling medium along the part of the outer surface of the generator stator and/or of the outer wall of the nacelle enclosed by the top edge of the vertical drum.