Method and system for evaluating risk degree of mechanical property of defective basin-type insulator based on infrared imaging

By using infrared imaging technology and COMSOL simulation, the problem of insufficient resolution in infrared thermal wave detection has been solved, enabling accurate identification and mechanical performance evaluation of bubble defects in basin insulators. This improves the accuracy and reliability of detection and promotes resource utilization and sustainable development in the power industry.

CN120928121APending Publication Date: 2025-11-11GUIZHOU POWER GRID CO LTD
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Patent Information

Application Number
CN202510766479.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-10
Publication Date
2025-11-11

AI Technical Summary

Technical Problem

Existing infrared thermal wave detection technology has limited resolution, making it difficult to accurately detect tiny bubble defects inside basin insulators, which affects the accuracy of their mechanical performance assessment.

Method used

Infrared radiation signals during temperature changes are collected using infrared imaging technology to generate time-series temperature field distribution data. By combining wavelet transform and fuzzy algorithm, bubble defects are identified, and mechanical performance is evaluated using COMSOL simulation.

Benefits of technology

This improves the accuracy and reliability of mechanical performance assessment of defective pot insulators, avoids resource waste and power transmission interruptions caused by misjudgment of pot insulators, and promotes the maximization of resource utilization and the sustainable development of the power industry.

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Abstract

The invention discloses a defect basin-type insulator mechanical property risk degree evaluation method and system based on infrared imaging, and belongs to the field of power equipment partial discharge detection.The method comprises the steps that infrared radiation signals of the surface of a test product in the temperature change process are collected, and time sequence temperature field distribution data are generated; calculating a temperature change rate based on the temperature field distribution data, positioning an internal heat conduction abnormal area and identifying bubble defects; carrying out mechanical property simulation on the basin-type insulator with the bubble defect, applying the same fixed mechanical load in the simulation process, and analyzing the stress conditions of the defect part and the whole body of the basin-type insulator; and evaluating the harmfulness to the mechanical property of the basin-type insulator. According to the method, the risk degree of the defective basin-type insulator can be judged, power transmission interruption or fluctuation caused by blind replacement or wrong judgment is avoided, various inconveniences and losses caused by power failure accidents are further reduced, maximum utilization of resources is achieved, and the power industry is promoted to develop towards the green and sustainable direction.
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