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Large wind driven power generator and sectional type blade thereof

A segmented technology for wind turbines, applied in wind turbine components, wind engines, wind motor combinations, etc., can solve the problems of inconvenient transportation and high transportation costs of large blades, and achieve convenient transportation, easy and fast power adjustment, Lightweight effect

Active Publication Date: 2012-07-25
GUODIAN UNITED POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the transportation in these areas is often inconvenient, and the transportation cost of large blades is high.

Method used

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  • Large wind driven power generator and sectional type blade thereof
  • Large wind driven power generator and sectional type blade thereof
  • Large wind driven power generator and sectional type blade thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0031] Such as figure 1 , 2 As shown, a segmented blade of a large-scale wind power generator of the present invention includes a blade root 1 and a blade tip 2 connected to the blade root 1. By designing the blade in segments, the manufacturing and transportation problems in the prior art can be solved. Difficult problem; wherein the blade root 1 includes a cylinder 11, a leaf-shaped skeleton 12 and a skin 13, the leaf-shaped skeleton 12 is placed on the outer circumference side of the cylinder 11 and connected with the cylinder 11, and the skin 13 covers the leaf-shaped skeleton 12 outside and connected with cylinder 11. Through the above-mentioned structural de...

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Abstract

The invention discloses a sectional type blade for a large wind driven power generator. The sectional type blade comprises a blade root and a blade tip connected with the blade root, wherein the blade root comprises a barrel body, a blade-shaped framework and a cover; the blade-shaped framework is arranged on the outer circumferential side of the barrel body and connected with the barrel body; and the cover is covered outside the blade-shaped framework and connected with the barrel body. Due to the structure, the sectional type blade has the advantages of convenience in manufacturing and conveying and low cost. The invention also discloses the large wind driven power generator which comprises the sectional type blade and has the same advantages. Two independent blade pitch variation control systems are adopted in the large wind driven power generator, so that the running reliability and the safety of the wind driven power generator are improved greatly due to the redundancy design.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a large wind power generator and segmented blades thereof. Background technique [0002] Wind power generation is an important form of wind energy utilization. Wind energy is a renewable, pollution-free, high-energy, and promising energy source. It is a strategic choice for all countries in the world to vigorously develop clean energy. Wind power technology and equipment is an important part of the wind power industry, and it is also the basis and guarantee for the development of the wind power industry. Countries around the world have adopted incentives to promote the development of their own wind power technology and equipment industry. At present, my country's wind power technology and equipment industry has made great achievements. According to statistics in 2010 At the end of the year, my country's installed capacity of wind power ranked first in the world. [0003] With...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00F03D7/00F03D9/25
CPCY02E10/723Y02E10/722Y02E10/72Y02P70/50
Inventor 叶凡
Owner GUODIAN UNITED POWER TECH
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