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Wind turbine blade and method of assembly of blade elements to form wind turbine blade

A technology for wind turbines, elements, applied in the field of joining such blade elements, to achieve the effect of reducing uneven surfaces, time and cost

Active Publication Date: 2019-12-31
LM WIND POWER INT TECH II APS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] There is a continuing need for robust methods for assembling wind turbine blades from blade elements, especially since blade sections are often quite long and flexible, creating challenges in their correct alignment and coupling

Method used

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  • Wind turbine blade and method of assembly of blade elements to form wind turbine blade
  • Wind turbine blade and method of assembly of blade elements to form wind turbine blade
  • Wind turbine blade and method of assembly of blade elements to form wind turbine blade

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Embodiment Construction

[0103] 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 axis. 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 .

[0104] figure 2 A schematic view of a wind turbine blade 10 according to an embodiment of the invention is shown. The wind turbine blade 10 has the shape of a conventional wind turbine blade and includes a root region 30 closest to the hub, a forming or airfoil region 34 furthest from the hub, and a transition region 32 between the root region 30 and the airfoil region 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 .

[0105] Th...

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PUM

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Abstract

A method of assembling a wind turbine blade from wind turbine blade elements is provided. The method comprises joining the elements via a taper joint around the whole circumference of the blade.

Description

technical field [0001] The invention relates to the field of wind turbine blades. In particular, the invention relates to wind turbine blades made from blade elements and methods for joining such blade elements. Background technique [0002] Wind turbine blades typically consist of two half-shells of fiber-reinforced resin molded in two open molds, one for each half-shell, using an adhesive along approximately the entire length of the blade Joined at the leading and trailing edges of the blade. Alternatively, wind turbine blades can also be produced according to a one-shot method, wherein the entire blade is infused with resin in a closed mould, as described eg in EP 1 310 351 and EP 2 116 359 . This one-step process omits adhesive joints at the leading and trailing edges of the blade, but is more complex to practice than processes involving half-shells. [0003] Modern wind turbine blades are typically over 40 meters long, and more recently, blades approaching 90 meters ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06
CPCF03D1/0675F05B2230/20F05B2240/302F05B2250/292F05B2280/6013F05B2280/6015Y02E10/72Y02P70/50F03D13/10F05B2230/604F05B2280/6003
Inventor M.隆德-拉弗里克H.米尼
Owner LM WIND POWER INT TECH II APS