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

A technology for wind turbines and on-line testing, applied in wind turbines, wind turbine monitoring, wind power generation, etc., can solve problems such as low efficiency, huge labor and mechanical use costs, etc., to reduce construction time and reduce large-scale failures. Probability, easy-to-achieve effects

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

Although this method is simple in principle and easy to operate, it needs to connect the lightning receptor at the tip of the blade. The current detection methods all need the assistance of a crane or a self-climbing robot.
This method is very inefficient, and testing a fan will result in huge labor and mechanical costs due to the use of professional auxiliary equipment.

Method used

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

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Embodiment Construction

[0035] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings.

[0036] In order to facilitate the understanding of the online testing system and method for the disconnection of the lead wires of the blades of the wind power generating set provided in the embodiment of the present application, the following firstly introduces its application scenarios.

[0037] At present, the detection of the lightning protection wire on the blade of the fan can only be carried out offline detection, that is, the fan is stopped, and then the connection of the lightning protection wire is detected through the corresponding equipment. This detection method requires manual inspection on a regular basis, which is more labor-intensive. , At the same time, the proportion of the loss caused by the shutdown of the fan cannot be ignored; it is unpredictable that t...

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Abstract

The invention discloses a wind generating set blade lead wire breakage on-line test system and method. The system comprises a blade and a lightning conductor arranged in the blade. The method is characterized in that an active transmitting device and a high-frequency sensor system are arranged at the two ends of a lightning conductor respectively, after the active transmitting device loads high-frequency pulses to the lightning conductor, the high-frequency pulses are transmitted to a high-frequency sensor along the lightning conductor, and the high-frequency sensor system receives high-frequency pulse signals; the lightning conductor is in communication connection with an upper computer system in a wired or wireless mode, and the upper computer system executes on-off alarm of the lightning conductor according to whether the signal is received or not; 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 testing system and method for a blade lead wire breakage of a wind power generator set. Background technique [0002] In order to capture more wind energy, wind turbines often work in open areas. Once thunderstorm clouds pass by, they are easily damaged by lightning strikes, and the mechanical or electrical systems are easily caused to fail. In severe cases, it will cause serious accidents such as blade bursting and fire. It usually leads to a longer downtime, causing a lot of downtime losses. In addition, the cost of wind turbines is high, and once they are struck by lightning, they will incur huge maintenance costs, especially after the valuable parts such as blades and generators are damaged by lightning, in addition to the loss of power generation caused by shutdown, the damaged parts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D17/00F03D80/30
CPCF03D80/30F03D17/00Y02E10/72
Inventor 任晓颖张飞王金明郭靖祁丽
Owner INNER MONGOLIA UNIV OF SCI & TECH
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