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Wind turbine blade noise reduction device and noise reduction method thereof

A technology of wind turbines and wind turbine blades, which is applied to wind turbines, wind turbines consistent with the wind direction, and monitoring of wind turbines. It can solve problems such as the inability to reduce the noise of wind turbine blades comprehensively and efficiently, and reduce aerodynamic noise. , the effect of increasing the distance

Inactive Publication Date: 2019-06-25
安徽驭风风电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the noise reduction of wind turbine blades is still in the state of groping. Basically, vortex generators or sawtooth are used to reduce the noise of wind turbine blades. Comprehensively and efficiently reduce the noise generated by wind turbine blades

Method used

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  • Wind turbine blade noise reduction device and noise reduction method thereof
  • Wind turbine blade noise reduction device and noise reduction method thereof
  • Wind turbine blade noise reduction device and noise reduction method thereof

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Experimental program
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Embodiment 1

[0031] The present invention provides such Figure 1-3 A wind power generator blade noise reduction device shown includes a wind power blade body 1, the wind power blade body 1 is divided into a blade front part 2 and a blade rear part 3, and the blade front part 2 is the length of the wind power blade body 1 2 / 3, the blade rear part 3 is the remaining part of the wind power blade body 1, and the wind power blade body 1 is provided with a noise reduction device 4 at one end of the blade rear part 3. By providing the noise reduction device 4, it is beneficial to The noise-reduced wind turbine blades further reduce noise, thereby achieving efficient noise reduction.

[0032] Further, in the above technical solution, the noise reduction device 4 includes a tiplet 5, and the inner wall of the side wall of the rear part 3 of the blade is provided with an installation groove 6 that matches the tiplet 5, and the installation groove 6 is provided with a battery 7 inside, and an elect...

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Abstract

The invention provides a wind turbine blade noise reduction device and a noise reduction method thereof. The wind turbine blade noise reduction device comprises a wind turbine blade body which is divided into a blade front portion and a blade rear portion, the blade front portion is two thirds of the length of the wind turbine blade body, and the blade rear portion is one third of the length of the wind turbine blade body; one end of the blade rear portion of the wind turbine blade body is provided with a noise reduction device, and the inner wall of the side wall of the blade rear portion isprovided with an installation groove matched with a blade tip small wing; a storage battery is arranged in the installation groove; and an electric telescopic rod is connected between the bottom wallof the interior of the installation groove and the blade tip small wing. According to the wind turbine blade noise reduction device and the noise reduction method thereof, the noise reduction device is arranged, turbulent flow and vortices are inhibited by the blade tip small wing advantageously, vortex air flow is caught and guided through a small wing flap, aerodynamic noise, caused by non-steady pressure pulsation and wake vortices, of the surface of the blade is reduced through small wing sawteeth, and accordingly, the wind turbine blade body can be subjected to efficient noise reduction through combination of the three modes.

Description

technical field [0001] The invention relates to the technical field of wind power generator blade noise reduction, in particular to a wind power generator blade noise reduction device and a noise reduction method thereof. Background technique [0002] Wind energy, as a clean and renewable energy that solves the problems of conventional energy shortage and global ecological environment deterioration, has become a focus of attention and development of energy industries in various countries. The use of wind energy can reduce the consumption of fossil energy and indirectly reduce air pollution and water pollution, but improper treatment will increase noise pollution." With the continuous expansion of my country's wind power installed capacity and localization, the noise problem of wind power blades has gradually emerged Come out and interfere with people's work and life. [0003] However, the noise reduction of wind turbine blades is still in the state of groping. Basically, vor...

Claims

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Application Information

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IPC IPC(8): F03D1/06F03D7/02F03D17/00
CPCY02E10/72
Inventor 陈俊张顺
Owner 安徽驭风风电设备有限公司
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