Wind Turbine Blades and Wind Turbine

Abstract

The invention provides a paddle of a wind power generating set. The paddle comprises a paddle root section (6), a paddle tip section (5) and a connection piece which connects the paddle root section (6) and the paddle tip section (5) and has an intensity less than those of the paddle root section (6) and the paddle tip section (5); when the paddle of the wind power generating set is blown by strong winds, such as typhoon and the like, and loads exceed the bearing capability of the connection piece, the connection piece fractures, thus the paddle tip section falls off; and due to the falling of the paddle tip section, the diameter of the paddle of the whole wind power generating set and the rotor swept area are decreased, and further bending loads applied to a tower frame and a foundation by the whole paddle are decreased. The tower frame and the foundation are stored in the strong wind environment such as typhoon and the like by the paddle of the wind power generating set, and the loss of the whole wind power generating set is reduced. The invention also provides the wind power generating 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 ...

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

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