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Generator preferably of wind turbine

A technology for wind turbines and generators, applied in wind engines, engines, wind power generation, etc., can solve problems such as increased power loss and increased heat production, and achieve the effects of reducing torque fluctuations, reducing hot spots, and high cooling performance

Active Publication Date: 2017-07-14
FLENDER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The increasing nominal power of modern wind turbine generators leads to increased power losses and increased heat production

Method used

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  • Generator preferably of wind turbine
  • Generator preferably of wind turbine
  • Generator preferably of wind turbine

Examples

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Embodiment Construction

[0069] figure 1 A schematic partial sectional view of a wind turbine 1 is shown. The wind turbine 1 is a direct drive wind turbine intended for onshore or offshore applications and comprises a rotatable rotor hub 2 having a number of rotor blades 3 attached to the rotor hub 2 . The rotor hub 2 is adapted to transmit a rotational movement to a rotor 4 . The rotor 4 is rotatably supported with respect to the stator 5 , and includes permanent magnets 11 mounted on the inner surface of the rotor 4 and facing the stator 5 . Thus, the rotor 6 is supported on a corresponding bearing unit 7 arranged on a non-rotatable hollow shaft 8 , whereby the stator 5 is supported on a stator frame 9 . The stator frame 9 is supported directly on a central hollow shaft 8 which extends along a 90° rounded angle and is connected to a vertical wind turbine tower 20 .

[0070] The air gap 10 extends in the axial direction 404 between the stator 5 and the permanent magnets of the rotor 4 . The radia...

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Abstract

The invention relates to a generator preferably of a wind turbine. The generator of a wind turbine comprises a stator (5) and a rotor (6). The stator comprises stacked first and second lamination sheets (100, 200, 300) with different through openings (315, 215, 316) radially extending between air gap and non air-gap side of the stator (5, 5') enabling a low fluid flow resistance and a high cooling surface resulting in a high cooling performance.

Description

technical field [0001] The invention relates to a generator, preferably a generator of a wind turbine. Background technique [0002] EP 2 670 026 A1 shows a stator stack for a stator of a wind turbine generator. The stator stack comprises several laminations. The first intermediate lamination comprises first openings for forming a cooling channel between the first lamination and the second lamination such that a cooling fluid can be guided through the cooling channel. [0003] EP 2 600 495 A1 shows a stator stack for a stator of a wind turbine generator. The stack includes a plurality of plates having a generally planar surface that extends to a greater extent in a circumferential direction than in a radial direction, wherein the plurality of plates includes at least a first through-hole having a first shape A first plate of openings, and a second plate having a second through-opening of a second shape different from the first shape, wherein the plates are defined at thei...

Claims

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Application Information

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IPC IPC(8): H02K1/20H02K21/02F03D9/25
CPCH02K1/20H02K21/021Y02E10/72H02K9/04
Inventor P.H.索伦森
Owner FLENDER GMBH
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