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Wind turbine

A technology for wind turbines and generators, applied in the directions of wind turbines, wind turbine combinations, wind turbine components, etc., can solve problems such as bending loads that cannot be completely avoided

Active Publication Date: 2013-04-03
GE RENEWABLE TECH WIND BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This represents a major improvement over other prior art wind turbines for this direct drive wind turbine, but cannot completely avoid the transfer of bending loads from the rotor to the generator

Method used

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Embodiment Construction

[0033] figure 1 A first embodiment of a wind turbine according to the invention is shown. The wind turbine 1 comprises a hub 10 carrying a plurality of blades (not shown). The root of the blade is attached directly at the hub. Hub 10 is rotatably mounted on front frame 20a by suitable bearings 15 and 16 . A generator 30 is also mounted on the front frame 20a. The generator 30 comprises a generator stator 32 and a generator rotor 33 which are arranged in a generator housing 31 . The generator rotor 33 is rotatably mounted relative to the generator stator via bearings 34a and 34b. The front frame 20a is also connected to a rear frame 20b, which is mounted on top of a wind turbine tower (not shown).

[0034] In this embodiment, the hub 10 includes a plurality of protrusions 12 formed integrally with the hub. The generator rotor 33 comprises (electric) magnetic elements carried by a carrying structure 35 . The protrusion 12 extends into the generator 30 and is connected by ...

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Abstract

Wind turbine comprising a rotor and a generator, said rotor comprising a rotor hub and one or more rotor blades and said generator comprising a generator stator and a generator rotor, wherein the hub is rotatably mounted on a frame, the generator rotor comprises a carrying structure carrying magnetic or electromagnetic elements, one or more circumferentially arranged substantially axial protrusions are attached to said rotor, wherein said axial protrusions extend into the generator rotor carrying structure, and one or more flexible couplings are arranged between one or more of said axial protrusions and said carrying structure.

Description

technical field [0001] The invention relates to a wind turbine. Background technique [0002] Modern wind turbines are commonly used to supply electricity into the grid. Such wind turbines generally include a rotor having a rotor hub and a plurality of blades. The rotor is set to turn as the wind affects the blades. The rotation of the rotor shaft drives the generator rotor directly ("direct drive") or through the use of a gearbox. [0003] The gearbox forms one of the most maintenance intensive components of a wind turbine. Gearboxes need to be inspected regularly, and don't always wear out their expected life; gearboxes or parts of gearboxes sometimes need to be replaced prematurely. This is due to the high loads and fluctuating loads to which the gearbox is subjected. In particular, bending loads that may be transmitted through the rotor shaft to the blades of the gearbox can be destructive. [0004] Direct drive wind turbines known eg from WO 2005 / 103489 do not suf...

Claims

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Application Information

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IPC IPC(8): F03D11/02
CPCF03D11/028Y02E10/725Y02E10/722F05B2260/96F05B2220/7068F03D9/25F03D15/00F03D15/20Y02E10/72
Inventor D·卡斯特利马丁内斯C·卡萨诺瓦斯贝尔梅霍S·卡内多帕尔多
Owner GE RENEWABLE TECH WIND BV
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