Wind turbine blade with tip vane

A wind turbine blade and blade tip technology, applied in the energy field, can solve the problems of high pressure, no lift generated by the blade, loss of the blade tip, etc.

Inactive Publication Date: 2014-01-01
中国大唐集团科学技术研究总院有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the wind turbine is actually running, the blade tip is driven by the blade body or the pressure on the wind-receiving surface of the blade is relatively large.
For a long time, the tip of the blad

Method used

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  • Wind turbine blade with tip vane
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Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The core idea of ​​this application:

[0034] Such as figure 1 As shown, the horizontal axis wind turbine in the prior art includes: a blade 1 , a blade tip 2 , a hub 3 , a nacelle 4 and a tower 5 . When the blade 1 rotates, a wake flow field will be generated at the tip of the blade 1 along with the rotation of the blade 1 . This wake field has vortices exhibiting multiple helical structures. When the vortex flows around the blade tip, there will be a pressure difference between the upper and lower surfaces of the blade tip section, causing the vortex to flow around the blade tip, which means that the circulation at the blade tip is reduced, resulting in a decrease in torque, making The blades do not generate lift, this los...

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PUM

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Abstract

The invention provides a wind turbine blade with a tip vane. The wind turbine blade with the tip vane comprises a tip and a tip vane, wherein the tip vane further comprises an empennage connection component, a first empennage and a second empennage; the first empennage and the second empennage are simultaneously connected with one end of the empennage connection component to form a forked tail structure; the other end of the empennage connection component is sheathed and fixedly arranged on the tip; therefore an included angle is respectively formed between the first empennage and the wind turbine blade as well as between the second empennage and the wind turbine blade; the first empennage is positioned on the windward side of the wind turbine blade; the second empennage is positioned on the lee side of the wind turbine blade; and the first empennage and the second empennage are both of the flat structure and tangentially extend along the rotation track of the wind turbine blade. According to the wind turbine blade with the tip vane, which is disclosed by the invention, the aerodynamic characteristics and the surface load of the wind turbine are effectively improved, and the tip loss and the aerodynamic noise are reduced.

Description

technical field [0001] The present application relates to the field of energy technology, and in particular to a wind turbine blade with tiplets. Background technique [0002] Wind energy, as a clean and renewable energy, has developed rapidly in the past decade due to energy, environment, and climate issues. Obviously, the cleanliness and renewable nature of wind energy and its large-scale application technology are increasingly mature, making wind power generation increasingly the most mature, most developmental and most promising power generation method in the field of new energy besides nuclear energy. [0003] A typical wind turbine consists of rotor, hub, blades, gearbox and drive train, generator, power conditioning, software control and monitoring. Although the theoretical maximum efficiency of a wind turbine is 59%, the performance of modern large wind turbines has been increasing due to the adoption of more advanced aerodynamically efficient blades, modern control...

Claims

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Application Information

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IPC IPC(8): F03D1/06
CPCY02E10/721F03D1/0633F05B2240/307Y02E10/72
Inventor 薛宇刘燕张蔚马斌
Owner 中国大唐集团科学技术研究总院有限公司
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