高压电缆多源局放单端定位方法、装置、设备和存储介质
By acquiring signals from a single end of a high-voltage cable and using multi-source partial discharge inversion model separation and clustering techniques, the problem of insufficient positioning accuracy of multi-source partial discharge was solved, achieving high-precision and low-cost cable fault location.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING XIONGXIN ELECTRIC POWER TECH CO LTD
- Filing Date
- 2025-11-20
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional single-end positioning methods for multi-source partial discharge of high-voltage cables are difficult to accurately identify the first arriving pulse and its precise arrival time from complex waveforms when multiple discharge sources coexist, leading to decreased positioning accuracy or even failure.
By acquiring mixed partial discharge signals at a single-end measurement end of the cable to be evaluated, inversion recovery is performed based on a pre-built multi-source partial discharge inversion model. Multiple original partial discharge pulse signals and their absolute occurrence times are separated, and clustering is performed using feature information and physical constraints to determine the location of the partial discharge source.
It significantly improves the single-end positioning accuracy and reliability under multi-source partial discharge conditions, reduces positioning errors, enhances accuracy and reliability in environments with strong reflection interference, and reduces engineering complexity and cost.
Smart Images
Figure CN121476828B_ABST