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Real-time state monitoring and fault diagnosing system and method for blades of wind generating set

A technology for wind turbines and fault diagnosis systems, which is applied in the direction of optical testing for flaws/defects, etc. It can solve problems such as cracks, trachoma, lightning strikes, and coverings that cannot be intuitively reflected, so as to prevent the expansion of faults Effect

Inactive Publication Date: 2012-07-04
SHANGHAI DIANJI UNIV
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

However, whether it is vibration signal or stress and strain, the operating state of the blade is analyzed from the perspective of mechanics, and whether the blade of the unit is in a normal state is indirectly known from the perspective of force, and it is impossible to intuitively reflect whether the blade has cracks, trachoma, damage, or peeling off. , lightning strike burn marks, covering and other faults

Method used

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  • Real-time state monitoring and fault diagnosing system and method for blades of wind generating set
  • Real-time state monitoring and fault diagnosing system and method for blades of wind generating set
  • Real-time state monitoring and fault diagnosing system and method for blades of wind generating set

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Embodiment Construction

[0034] like figure 1 Shown is a system structure block diagram of an embodiment of the present invention, including:

[0035] The camera is used to shoot the surface image of the blade of the wind power generating set. There can be multiple cameras, which are respectively installed at positions where the front and back surfaces of the blade can be photographed at the maximum angle. The object distance from the leaf being photographed.

[0036] The camera control module is connected with each camera, and is used to adjust the camera according to the position of the blade. The adjustment includes changing the shooting angle, focal length and resolution of the camera, so that the camera can capture as many and clear images of the surface of the blade as possible.

[0037] The image display module is connected with the camera and is used to display the surface image captured by the camera, and the user can freely observe the enlarged and focused image of the video as required.

...

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Abstract

The invention discloses a real-time state monitoring and fault diagnosing system and method for blades of a wind generating set. According to the system and method, a high-definition camera is used for shooting internal and external surfaces of the blades of the wind generating set in real time, thereby realizing the real-time monitoring on the health state of the blades. For abnormal blade states, a video processing technology is used for diagnosing the fault category of the blades, judging the size and serious degree of damaged regions and providing effective basis for maintaining the blades.

Description

technical field [0001] The invention belongs to the technical field of state monitoring and fault diagnosis of blades of wind power generators, and in particular relates to a system for real-time health status monitoring and fault diagnosis of blades of wind power generators based on video technology. The invention also relates to a monitoring and diagnosis method based on the above system. Background technique [0002] For large-scale megawatt wind turbines, blades are one of the most critical and core components, accounting for the highest proportion of cost, accounting for about 20-30% of the cost of the entire unit, and the price exceeds one million yuan. The length of a single blade of a megawatt wind turbine is more than 30 meters, and the blade of an offshore wind turbine is close to 50 meters in length and weighs close to 20 tons, and is becoming longer and heavier. At present, the blades of megawatt wind turbines are mainly processed by composite materials. Composi...

Claims

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Application Information

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IPC IPC(8): G01N21/88
Inventor 谢源
Owner SHANGHAI DIANJI UNIV
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