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

• US 20120019001A1
• Filed: 07/01/2011
• Published: 01/26/2012
• Est. Priority Date: 07/09/2010
• Status: Active Grant

• Current Assignee: Siemens Gamesa Renewable Energy A/S (Siemens AG)
• Original Assignee: Siemens AG
• Inventors: Hohle, Andreas Christian, Hohmann, Christian, Kummer, Claudia, Kölpin, Helmut, Li, Ying, Hede, Ivan Arthur, Tchemtchoua, Brice
• Granted Patent: US 8,648,482 B2
• Time in Patent Office: Days
• US Class Current: 290/44
• CPC Class Codes: F03D 15/00 Transmission of mechanical power
• CPC Class Codes: F03D 15/10 using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
• CPC Class Codes: F03D 7/02 the wind motors having rotation axis substantially parallel to the air flow entering the rotor
• CPC Class Codes: F03D 80/88 of mechanical components
• CPC Class Codes: F03D 9/25 the apparatus being an electrical generator F03D9/22 takes precedence
• CPC Class Codes: F05B 2240/40 Use of a multiplicity of similar components
• CPC Class Codes: Y02B 10/30 Wind power
• CPC Class Codes: Y02E 10/72 Wind turbines with rotation axis in wind direction

Abstract

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.

Claims

1-13. -13. (canceled)

14. A wind turbine, comprising:

a drive unit;

a generator assembly comprising

a first generator with a first stator and a first rotor, and

a second generator;

a drive train connecting the drive unit with the generator assembly,

wherein the first rotor is directly connected to the drive train, and

wherein the second generator is indirectly coupled to the drive train via a gear box.

15. The wind turbine according to claim 14, wherein the second generator and the gear box are comprised in a common operation unit.

16. The wind turbine according to claim 15, wherein the operation unit further comprises an azimuth drive.

17. The wind turbine according to claim 14, wherein the gear box comprises several output drive trains driving in operation the second generator and at least a third generator.

18. The wind turbine according to claim 14, further comprising:

a control unit that in operation derives control commands from variable input data which control commands serve to adjust a percentage of rotational energy of the drive train converted by the first generator or by the second generator or by the at least third generator.

19. The wind turbine according to claim 14, further comprising:

a control unit that in operation derives control commands from variable input data which control commands serve to adjust a percentage of rotational energy of the drive train converted by the first generator and by the second generator and by the at least third generator.

20. The wind turbine according to claim 18, further comprising:

at least one adjustment unit connected to the first generator or the second generator or the at least third generator which adjusts the percentage of rotational energy in dependence of the control commands.

21. The wind turbine according to claim 19, further comprising:

at least one adjustment unit connected to the first, second and the at least third generator which adjusts the percentage of rotational energy in dependence of the control commands.

22. A drive train assembly for a wind turbine connecting a drive unit with a generator assembly, wherein the generator assembly comprises

a first generator with a first stator and a first rotor, the first rotor being directly connected to a drive train of the drive train assembly, and

at least a second generator indirectly coupled to the drive train via a gear box.

23. A wind turbine nacelle system for building a nacelle for use in a wind turbine, wherein the nacelle comprises

a generator assembly, and

a drive train connecting a drive unit with the generator assembly,

wherein the nacelle system comprises

a first nacelle part and a series of second nacelle parts, the first nacelle part and any one of the series of second nacelle parts forming the nacelle, and wherein the series of second nacelle parts comprises second nacelle parts different in size.