Intelligent cable detection system and method

By using high-precision harmonic analyzer and distributed fiber temperature sensor in an intelligent cable detection system, the harmonic distortion rate fluctuation characteristics and temperature rise rate deviation characteristics of the cable are extracted, the data prediction model is constructed, the accuracy of potential risks of the cable is evaluated, and the monitoring strategy is dynamically adjusted, the problem of insufficient ability to identify complex fault modes in the existing technology is solved, and the accurate identification and early warning of hidden faults of cables are achieved.

CN119575069APending Publication Date: 2025-03-07青岛一缆电缆有限公司
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Patent Information

Application Number
CN202411743402.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-30
Publication Date
2025-03-07

AI Technical Summary

Technical Problem

When existing intelligent cable detection systems identify complex fault modes, insufficient algorithm recognition capabilities may lead to the generation of a ‘false safety state’, neglecting potential risks, delaying maintenance, leading to catastrophic failures such as cable insulation breakdown, high-voltage line breakage or arc flickering.

Method used

By installing a high-precision harmonic analyzer at the input and output of the cable, non-linear change data of low harmonics can be captured in real time, and a distributed fiber optic temperature sensor is used to collect temperature rise rate data in the hot spot area, extract harmonic distortion rate fluctuation characteristics and temperature rise rate deviation characteristics, build a data prediction model, evaluate the accuracy of potential risks of the cable, and dynamically adjust the monitoring strategy.

Benefits of technology

It effectively solves the problem of insufficient ability of algorithms to identify complex fault modes, realizes accurate identification and early warning of hidden cable faults, and improves the reliability and efficiency of the online monitoring system for the assessment of potential cable risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an intelligent cable detection system and method, and particularly relates to the technical field of cable detection. High-precision harmonic analyzers are installed at the input end and the output end of a cable to capture low-order harmonic nonlinear change data in real time, a distributed optical fiber temperature sensor is used for collecting temperature rise rate data of a hot spot area, the data are preprocessed and subjected to feature extraction, harmonic distortion rate fluctuation features and temperature rise rate deviation features are extracted, and the harmonic distortion rate fluctuation features and the temperature rise rate deviation features are extracted. A data prediction model is constructed, and the accuracy of the on-line monitoring system on the potential risk of the cable is accurately evaluated; according to the method, the cable is divided into different grades according to accuracy values, targeted treatment measures are taken respectively, and especially for incomplete accuracy evaluation, accurate identification and real-time optimization monitoring of cable hidden faults are realized by dynamically predicting the accuracy deviation degree and adjusting the monitoring frequency and the detection range. And the accuracy of early warning of cable faults and the reliability of an online monitoring system are obviously improved.
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Citation Information

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  • Cable comprehensive state assessment and diagnosis method, system and device and storage medium

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  • Intelligent online monitoring system for photovoltaic power station

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