High-voltage cable fault rapid positioning method and system based on multi-modal monitoring

By deploying Rogowski coil sensors in the cross-connection units of high-voltage cables, and combining multimodal monitoring and cluster analysis of current polarity fluctuations, vibration, and ultrasonic data, the problem of rapid location of faults in the cross-connection units of high-voltage cables was solved, achieving efficient and accurate fault location.

CN121741376APending Publication Date: 2026-03-27GUANGDONG CHANGCHUAN INTELLIGENT TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-18
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In the existing technology, the high-voltage cable fault detection method based on Rogowski coil sensors cannot achieve rapid location of cross-connection units within the fault cross-connection section, making it difficult to meet the needs of rapid handling of high-voltage cable faults.

Method used

By deploying Rogowski coil sensors in the cross-interconnection unit, current polarity fluctuation, vibration, and ultrasonic data are acquired. Multimodal monitoring data are spliced ​​and clustered, and faulty cross-interconnection units are screened out using cluster center distance and fault conditions.

Benefits of technology

It enables rapid location of faulty cross-connection sections in high-voltage cables, improving location efficiency and accuracy, and allows for multimodal verification after initial screening to ensure accuracy.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121741376A_ABST
    Figure CN121741376A_ABST
Patent Text Reader

Abstract

The invention relates to the field of cable fault monitoring, and discloses a high-voltage cable fault rapid positioning method and system based on multi-modal monitoring, and the method comprises the steps: clustering the historical multi-modal monitoring data of a plurality of cross interconnection units, and obtaining a plurality of historical multi-modal monitoring data clustering groups; determining clustering center distances from the plurality of clustering centers to the sample fault data; acquiring real-time current polarity fluctuation data of the target cross interconnection section; when the real-time current polarity fluctuation data of the target cross interconnection section meets a current polarity fault condition, determining a target cross interconnection unit of which the clustering center distance corresponding to a plurality of historical multi-modal monitoring data clustering groups where the plurality of cross interconnection units are located is smaller than a preset clustering center distance; and when the real-time multi-modal monitoring data of the target cross interconnection unit meets a multi-modal fault condition, determining that the target cross interconnection unit is a fault cross interconnection unit. According to the method and the device, the cross interconnection unit of the cross interconnection section with the fault can be quickly positioned.
Need to check novelty before this filing date? Find Prior Art