Paddle of wind power generating set and wind power generating set

A technology of wind turbines and blades, applied in wind power generation, wind engines, machines/engines, etc., can solve problems such as damage to wind turbines, frequent typhoons, etc., and achieve reduced losses, reduced diameter, and reduced swept area of ​​the wind rotor small effect

Active Publication Date: 2013-09-18
ZHEJIANG WINDEY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, frequent typhoons in the above-mentioned coastal areas put forward new requirements for the normal operation of wind turbines
In the process of designing wind turbines, if improper consideration is given, when strong winds such as typhoons hit the wind farm, the wind turbines may be severely damaged

Method used

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  • Paddle of wind power generating set and wind power generating set
  • Paddle of wind power generating set and wind power generating set
  • Paddle of wind power generating set and wind power generating set

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] The invention provides a wind turbine blade, which reduces the bending moment load generated by the blade on the entire tower and foundation when a strong wind such as a typhoon blows the blade, thereby reducing damage to the entire wind turbine.

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] Please refer to the attached Figure 1-Figure 4 , figure 1 Schematic diagram of the structure of the wind turbine provided by the embodiment of the present invention; figure 2 for figure 1 side vie...

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PUM

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Abstract

A blade for a wind generator set, comprising a blade root segment (6), a blade tip segment (5), and a bridge piece connecting the blade root segment (6) and the blade tip segment (5) and with a strength less than that of the two segments. When the blade of the wind generator set is subjected to gusts of strong wind, such as a typhoon, etc., if the load on the bridge piece exceeds what the piece can withstand, the bridge piece will break up so as to make the blade tip segment fall off. The blade tip segment falling off reduces the diameter of the whole blade of the wind generator set and reduces the swept area of the wind wheel, thus reducing the flexural load exerted on the tower frame and the base by the whole blade. In a very windy environment, such as in a typhoon, etc., the blade of the wind generator set protects the tower frame and the base, reducing loss to the whole of the wind generator set. Also provided in this invention is a wind generator set.

Description

technical field [0001] The present invention relates to the technical field of wind power equipment, and more specifically, relates to a wind turbine blade, and the invention also relates to a wind turbine with the above blade. Background technique [0002] As a clean and renewable energy, wind energy has been paid more and more attention by countries all over the world. my country's wind energy resource reserves are large and widely distributed, and its development prospects are very broad. In recent years, my country's wind power has developed very rapidly, especially in the southeastern coastal areas of my country, which are rich in wind energy resources and are close to the center of power loads, so it is necessary to vigorously develop offshore wind power. [0003] However, frequent typhoons in the above-mentioned coastal areas have put forward new requirements for the normal operation of wind turbines. In the process of wind turbine design, if improper consideration ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06
CPCF05B2260/3011F05B2240/302Y02E10/721F03D1/0675Y02E10/72
Inventor 叶杭冶陈棋
Owner ZHEJIANG WINDEY
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