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Wind turbine vane

A technology for wind turbines and blades, which is applied to wind turbines, wind turbines, and motors that are in the same direction as the wind, to achieve the effect of high energy output

Inactive Publication Date: 2014-07-23
YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such fatigue loading generates considerable stresses and strains within the wind turbine structure, requiring significant design constraints on the strength of materials used for turbine construction, reinforcement, etc.

Method used

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  • Wind turbine vane
  • Wind turbine vane
  • Wind turbine vane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] Depend on figure 1 It can be seen that the wind turbine 1 comprises a tower 2 and a nacelle 3 on top of said tower 2 . At one end of the nacelle 3, a hub 4 is provided on a main shaft not shown in the figure. Three wind turbine blades 5 are mounted on the hub 4 .

[0047] figure 2 The profile of several airfoil sections 6 of a wind turbine blade 5 is shown. figure 2 The wind turbine blades are curved in such a way that when the blade 5 is mounted, the blade tip 7 points away from the tower 2, towards the wind. Blades like this are also called curved or pre-curved wind turbine blades 5 .

[0048] For the purpose of illustration in this figure, the wind turbine blade 5 comprises several differently shaped sections or airfoil sections 6 .

[0049] figure 2 The blade 5 is shown looking from the root end 8 towards the blade tip (also called tip) 7 . At the root end 8, the profile is approximately circular and very thick, and at a distance from the root end 8, the ...

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PUM

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Abstract

The invention relates to a wind turbine vane. The length of the wind turbine vane is larger than 49.9 meters and smaller than 50.9 meters, such as 50.5 meters, and the relative length of the vane is one. The wind turbine vane further comprises a vane root end part and a tip end part, the wind turbine vane comprises an overall aerodynamic shape structure which comprises a plurality of sections (cross sections) of the aerodynamic shape, and the sections are at least determined by section thicknesses, wing chords and torsion. The wind turbine vane is provided with a set of specific torsion being + / -10% at the position with a specific relative distance away from the root end part of the vane. The wind turbine vane with above torsion has various advantages, the requirement of the wind turbine vane with the efficient wind power generation capacity is met, and meanwhile the vane can lower fatigue loads due to the fact that the composition of the torsion in the length direction of the vane is the best.

Description

[0001] Technical field The present invention relates to a wind turbine blade, the length of which is greater than 49.9 meters and less than 50.9 meters, such as 50.5 meters, the relative length of the blade is 1, and the wind turbine blade further comprises a blade root end and a tip portion, so The described wind turbine blade comprises an overall aerodynamic shape comprising several aerodynamically shaped sections (cross-sections) determined by at least section thickness, chord and twist. The invention further relates to a wind turbine comprising at least two, preferably three, said wind turbine blades. Background technique [0002] During operation of the wind turbine, the root ends of the wind turbine blades are subjected to enormous loads due to the aerodynamic rotation of the blades. Such fatigue loading generates considerable stresses and strains within the wind turbine structure, requiring significant design constraints on the strength of materials used for turbine con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06
CPCY02E10/72
Inventor 沃特·瑞杰特
Owner YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD