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
  • Abstract
  • Description
  • Claims
  • Application Information

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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 indire

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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Example Embodiment

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

[0035] The camera is used to capture the surface image of the blade of the wind turbine. There can be multiple cameras, which are installed at the position where the front and back surfaces of the blade can be captured at the maximum angle. The cameras are all installed on the retractable connecting rod, which can be changed freely. The object distance from the photographed blade.

[0036] The camera control module is connected to 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 much and clearly the surface of the blade as possible.

[0037] The image display module, connected with the camera, is used to display the surface image taken by the camera, and the user can freely observe the enlarged and fo...

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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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