Composite insulator hydrophobicity level intelligent determination method

A technology of composite insulators and determination methods, applied in instruments, surface/boundary effects, measuring devices, etc., can solve problems such as limited application and human harm, and achieve the effects of reducing labor costs, large economic benefits, and ensuring personnel safety.

Inactive Publication Date: 2018-12-21
PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER +1
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Problems solved by technology

The liquid used in the surface tension method is harmful to the human body, which limits its application in the evaluation of the hydrophobicity of insulators. The water spray classification metho

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  • Composite insulator hydrophobicity level intelligent determination method
  • Composite insulator hydrophobicity level intelligent determination method
  • Composite insulator hydrophobicity level intelligent determination method

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Embodiment Construction

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] Such as figure 1 As shown, an intelligent method for determining the hydrophobicity level of composite insulators includes water droplet separation and hydrophobicity level determination: preprocessing and water droplet separation are performed on the image of the water spray classification; (2) the feature quantity of the hydrophobic image is extracted And calculation, using BP neural network to judge the level of hydrophobicity....

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Abstract

The invention provides a composite insulator hydrophobicity level intelligent determination method. The composite insulator hydrophobicity level intelligent determination method comprises the following steps: preprocessing an image taken by an unmanned aerial vehicle through adaptive smoothing filtering; performing contour extraction on the preprocessed image to obtain the outer contour of water droplets distributed on the umbrella skirt of the composite insulator; using a Bayesian decision-making algorithm combined with an artificial intelligence neural network algorithm to compare an hydrophobic detection image obtained by the contour extraction in step 2 with a standard hydrophobic image, so as to intelligently judge which one of the hydrophobicity level images is most consistent with the hydrophobic detection image, thereby judging the hydrophobicity level of the current hydrophobic detection image. The invention combines the artificial intelligence determination method to detect the hydrophobicity of the composite insulator in operation, which not only improves the detection efficiency, reduces the labor cost, but also greatly improves the working conditions of the line operators, ensures the safety of personnel, avoids the economic loss caused by power failure of the detection methods in the prior art, and has greater economic benefits and good social benefits.

Description

Technical field [0001] The invention relates to the technical field of water-repellency detection of composite insulators, in particular to a method for intelligently determining the water-repellency level of composite insulators. Background technique [0002] Silicone rubber composite insulators have been widely used in power systems because of their light weight, high strength, resistance to breakage, and good pollution resistance. However, during use, due to the combined effect of many factors such as high-voltage electric field, high-temperature sunshine, harsh weather and acid rain, the umbrella skirt of composite insulators gradually ages over time, showing a phenomenon of hydrophobic degradation. The degradation of hydrophobicity will seriously affect the insulation performance of composite insulators and increase the probability of flashover. In order to prevent the occurrence of pollution flashover accidents, it is necessary to regularly test the hydrophobicity of the i...

Claims

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Application Information

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IPC IPC(8): G01N13/00
CPCG01N13/00
Inventor 潘龙盛从兵宋伟裴付中黄桥林郭彦朝邵震冯盼增孟凡众张烜
Owner PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER
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