Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Blade of wind turbine

A technology of wind turbines and blades, which is applied to wind engines, wind engines consistent with the wind direction, engines, etc., to achieve the effect of high energy output

Inactive Publication Date: 2014-07-23
YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
View PDF4 Cites 2 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Blade of wind turbine
  • Blade of wind turbine
  • Blade of wind turbine

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 a plurality of 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 airfoils 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 thick, and at some distance from the root end 8, the maxi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a blade of a wind turbine. The length of the blade of the wind turbine ranges from 49.9 m to 50.9 m, for example, the length of the blade of the wind turbine can be 50.0 m, and the relative length of the blade is 1. The blade of the wind turbine comprises a blade root end and a point end, the blade of the wind turbine is in an integral aerodynamic shape, the aerodynamic shape comprises a plurality of aerodynamic-shaped profiles (cross sections), and the profiles are determined at least according to the profile thickness, wing chords, and torsion. According to the blade of the wind turbine, a set of specific profile thicknesses with an allowance of + / -10% exist at positions certain specific distances away from the blade root end. The blade, with the profile thickness, of the wind turbine has multiple advantages, and the requirement for a blade, with high efficiency, of the wind turbine for wind power generation is met; meanwhile, the probability of the fatigue load can be lowered due to the fact that the profile thickness formed in the length direction of the blade is optimal.

Description

technical field [0001] 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. A 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 construction, reinforcement, and the like. Therefore, it would be advantageous to develop specific wind turbine designs that can reduce suc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F03D1/06
CPCY02E10/72
Inventor 沃特·瑞杰特
Owner YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com