Online monitoring system for blade lead breakage of wind generating set and positive and negative testing method

A wind turbine and blade lead wire technology, which is applied in wind turbine monitoring, wind turbines, wind power generation, etc., can solve problems such as the immaturity of detection and judgment technology, reduce the probability of large-scale failures, be easy to implement, and ensure safety. Effect

Pending Publication Date: 2022-05-17
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no mature solution for active detection and judgment technology

Method used

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  • Online monitoring system for blade lead breakage of wind generating set and positive and negative testing method
  • Online monitoring system for blade lead breakage of wind generating set and positive and negative testing method
  • Online monitoring system for blade lead breakage of wind generating set and positive and negative testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] For the first form, the hardware part of the monitoring system of the lightning protection wire 3 mainly includes the blades arranged on the wind turbine tower, the lightning protection wire 3 arranged inside the blades, the lightning protection wire 3 is glued to the inner wall of the blade, and the lightning protection wire 3 is automatically connected to the inner wall of the blade. The blade tip of the blade is arranged to the blade root of the blade; the passive sensor system 2 is arranged at the blade tip of the blade, and the passive sensor system 2 and the lightning protection wire 3 are non-contact connections; The edge terminal equipment 4 is arranged on the lower lead of the lightning conductor 3; the radio frequency signal transmitting device 1 is arranged on the tower of the wind power generating set directly opposite to the tip of the blade.

[0057] The radio frequency signal transmitting device 1 mentioned above includes a power supply, a radio frequency ...

Embodiment 2

[0063] For the second form, such as Image 6 As shown, the hardware part of the lightning wire monitoring system is set on the blades on the fan tower and the lightning protection wire 3 arranged inside the blades. The lightning protection wire 3 and the lower lead wire are connected by fittings. The stranded wire is laid inside the blade and glued to the inner wall of the blade. The passive emission system is arranged at the position of the tip of the blade, and is non-contact connected with the lightning protection line 3. The lightning protection line 3 is arranged from the tip of the blade to the At the blade root of the blade; the tower radio frequency signal receiving device 6 is arranged on the tower so that when the blade tip is perpendicular to the ground, the passive sensing system 2 corresponds to the tower radio frequency signal receiving device 6; as figure 2 As shown, the power transmitting terminal equipment 7 is installed on the lower lead of the lightning con...

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PUM

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Abstract

The invention discloses an online monitoring system for blade lead breakage of a wind generating set and a positive and negative testing method. The online monitoring system comprises a blade arranged on a fan tower and a lightning conductor arranged in the blade, and the lightning conductor is arranged from the blade tip of the blade to the blade root of the blade; the device is characterized in that a radio frequency signal device is arranged at the position, right opposite to the blade tip of the blade, of the tower drum; a passive sensing system is arranged at the tip of the paddle, the passive sensing system is in non-contact connection with the lightning conductor, and information interaction is generated between the passive sensing system and the radio frequency signal device in a pulse wave form; a terminal device is arranged at the position of a fan hub; a communicated information loop is formed among the terminal equipment, the lightning conductor and the passive sensing system; and receiving and sending of radio frequency signals between the terminal equipment and the radio frequency signal device are controlled through the upper computer. Through the system and the method, the lightning protection system of the fan blade can be monitored in real time, the efficiency is high, detection can be carried out without shutdown, and economic loss consumed by detection is reduced.

Description

technical field [0001] The invention belongs to the field of disconnection detection of a lightning protection wire of a wind power generator set, and more specifically relates to an online monitoring system for a blade lead wire breakage of a wind power generator set and a positive and negative testing method. Background technique [0002] With the proposal of carbon neutrality and carbon peaking policies, the national energy system is facing an important transformation task of energy structure. Among them, renewable energy will play a pivotal role in the future energy supply. At present, wind power plays an important role in the energy supply of various countries, and in the future "14th Five-Year Plan", the installed capacity of wind power will continue to expand on a large scale. [0003] With the double-sided improvement of human operation and maintenance costs and industry professional requirements. Intelligent wind farms have become an important demand of the indust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D17/00F03D80/30
CPCF03D17/00F03D80/30Y02E10/72
Inventor 张飞郝斌赵艳峰郭靖祁丽
Owner INNER MONGOLIA UNIV OF SCI & TECH
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