Composite insulator hydrophobicity level intelligent determination method

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...

AI Technical Summary

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 method is simple, convenient and quick to operate, but it is greatly affected by human subjectivity. The test results of this method are due to There are certain differences due to different operators

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