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Wind turbine blade and method for producing a wind turbine blade

A technology of wind turbines, blades, applied in the field of wind turbine blades, which can solve problems such as difficulties

Pending Publication Date: 2021-10-15
LM WIND POWER AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is difficult to assemble wind turbine blades that are subjected to high loads and include subsections or segments that are scalable in geometry and strength

Method used

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  • Wind turbine blade and method for producing a wind turbine blade
  • Wind turbine blade and method for producing a wind turbine blade
  • Wind turbine blade and method for producing a wind turbine blade

Examples

Experimental program
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Embodiment Construction

[0069] figure 1 A conventional modern upwind wind turbine 2 according to the so-called "Danish concept" is illustrated with a tower 4, a nacelle 6 and a rotor with a substantially horizontal rotor shaft. The rotor comprises a hub 8 and three blades 10 extending radially from the hub 8 , each blade 10 having a blade root 16 closest to the hub and a blade tip 14 furthest from the hub 8 .

[0070] figure 2 A schematic view of an exemplary wind turbine blade 10 is shown. The wind turbine blade 10 has the shape of a conventional wind turbine blade with a root end 17 and a tip end 15 and includes a root region 30 closest to the hub, a contoured or airfoil region 34 furthest from the hub, and The transition zone 32 to the airfoil zone 34 . The blade 10 comprises a leading edge 18 facing the direction of rotation of the blade 10 when the blade is mounted on the hub, and a trailing edge 20 facing in the opposite direction of the leading edge 18 .

[0071] The airfoil region 34 (al...

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PUM

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Abstract

Disclosed is a wind turbine blade and a method for its production. The wind turbine blade comprises an upwind side shell part and a downwind side shell part. The upwind side shell part and the downwind side part are bonded together along at least one joint. At said at least one joint, the upwind side shall part and the downwind side shell part are bonded at an internal glue flange as well as at an external glue flange. The glue flange can be produced by using a mould insert along which the glue flange is laminated.

Description

[0001] The present disclosure relates to wind turbine blades, and to methods of their production. A wind turbine blade includes an upwind side portion and a downwind side portion joined along at least one joint. Background technique [0002] As wind turbines and wind turbine blades increase in size, blade loads (ie, strains, bending moments, peel loads, etc.) increase particularly along the trailing edge. For this reason and others, the design of the rear edge is an important factor for the structural integrity of the wind turbine. [0003] Turbine blades that include a flatback profile at the trailing edge may have increased efficiency. The optimized profile includes a trailing edge of varying geometry along the airfoil region of the blade. According to some embodiments, the rear edge also includes an aerodynamic flap, which reduces losses caused by air turbulence. [0004] It is difficult to assemble wind turbine blades that are subjected to high loads and that comprise s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06
CPCF03D1/0675F05B2280/6015F05B2280/6013F05B2230/23Y02E10/72Y02P70/50B29C66/54B29D99/0028F05B2280/6003
Inventor M·W·尼尔森D·罗伯茨R·韦斯特加德M·巴库姆
Owner LM WIND POWER AS