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Wind turbine blade damage positioning detection method

A wind turbine blade and damage location technology, which is applied to measuring devices, processing detected response signals, and using sonic/ultrasonic/infrasonic waves to analyze solids, etc. The effect of convenient blade design, shortening time and improving detection efficiency

Inactive Publication Date: 2021-09-17
北京京能能源技术研究有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the embodiments of the present invention is that it is impossible to quickly and accurately locate and detect the damage of wind turbine blades, and the detection efficiency is low

Method used

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  • Wind turbine blade damage positioning detection method
  • Wind turbine blade damage positioning detection method
  • Wind turbine blade damage positioning detection method

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Embodiment 1

[0070] A wind turbine blade damage location detection method can quickly locate the damage or defect location by collecting and processing the sound generated by the damage or defect during the blade movement. The sound generated by the damaged part during the movement of the blade is collected by the sound sensor to obtain the location of the damaged part. Then, when the fan blade is stationary, use the phased array ultrasonic testing equipment to scan and detect the blade surface in the positioning area to quickly understand the defect type of the blade And the damage situation, at the same time, according to the comparison of the detection results and the sound signal, the sound source signal is classified according to the defect type, and the defect sound database is established. Taking the blade suction side as an example, the pressure side method is the same. The sensors are arranged in a triangular manner on the suction surface of the blade. From the root of the blade t...

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Abstract

The embodiment of the invention provides a wind turbine blade damage positioning detection method. The wind turbine blade damage positioning detection method comprises the following steps that multiple sets of sensors arranged in a triangular shape are arranged on a wind turbine blade; sound signals are received through the multiple sets of sensors; and the location of the blade damage or defect is obtained through the sound signal and the position coordinate of the sensor. The time for finding the damaged position of the blade can be greatly shortened, and positioning and detection can be quickly completed. The blade damage position can be quickly and effectively positioned through the sound signal generated at the blade damage position, the position is detected, and the internal damage of the blade is quickly identified.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method for locating and detecting damage to wind turbine blades. Background technique [0002] The non-destructive testing method for blades is now widely used to find the damage location and size of the blade through the ultrasonic non-destructive testing method. If you want to know the damage of the blade during the type test, it usually requires professionals to carry out all-round inspection from the root to the tip of the blade. In addition, the blade needs to be scanned repeatedly at different time points, which takes a lot of time to complete these tasks, and the efficiency is extremely low. There is an urgent need for a method for quickly locating the defect position and performing blade inspection. [0003] The applicant found that there are at least the following problems in the prior art: it is impossible to quickly and accurately locate and detect the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/44
CPCG01N29/043G01N29/4445G01N2291/023G01N2291/0289
Inventor 梅东升孟超毛永清蔡来生徐伟石敏温向炜呼木吉乐图谢正和张博洋梁国杰蔚鹏飞杨科康顺
Owner 北京京能能源技术研究有限责任公司
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