高压电器2024，Vol.60Issue(5)：46-53,60,9.DOI:10.13296/j.1001-1609.hva.2024.05.006
基于弗雷歇距离的GIS隔离开关卡涩缺陷识别及量化方法
Clogging Defect Identification and Quantification Method of GIS Disconnector Based on Fréchet Distance
柯艳国 1张国宝 2杨为 2赵恒阳 1黄伟民 1阮江军 3何松3
作者信息
- 1. 国网安徽省电力有限公司,合肥 230601
- 2. 国网安徽省电力有限公司电力科学研究院,合肥 230601
- 3. 武汉大学电气与自动化学院,武汉 430000
- 折叠
摘要
Abstract
In the electric power industry,various mechanical faults of disconnector for in gas insulated switchgear(GIS)are often due to the stress variation of the driving mechanisms and conductive parts.The early manifestation of this kind of stress variation is mainly clogging defect.The identification and quantification of these clogging in GIS disconnector is of significant importance in preventing severe equipment failures.However,GIS disconnector faces challenges in identifying and quantifying the clogging defects due to the discrete nature of mechanical states result-ing from industrial operational conditions.This limitation hampers the ability of maintenance personnel to effectively perceive the mechanical condition of GIS disconnector and predict potential failures.In this paper,the power curve of the driving motor under normal mechanical conditions of GIS disconnector is used as the refere;nce curve.The multi-window slope-based feature point identification method is adopted,the analysis of the switch's operational physical processes is combined to segment the power curve of the motor.Within each segment of the switch's opera-tion,the Fréchet distance analysis is adopted to identify clogging defects of GIS disconnector.Furthermore,these de-fects are quantified by using the Fréchet distance between the standard curve and the operational curve.Finally,the effectiveness of the proposed technological approach is validated through experiments on a ZF12B-126 model GIS disconnector.The experiments demonstrate that the method adopted in this paper is sensitive to the identification of clogging defects during the early stages of its development.关键词
GIS隔离开关/相似度分析/机械故障/智能诊断Key words
GIS disconnector/similarity analysis/mechanical failure/intelligent diagnosis引用本文复制引用
柯艳国,张国宝,杨为,赵恒阳,黄伟民,阮江军,何松..基于弗雷歇距离的GIS隔离开关卡涩缺陷识别及量化方法[J].高压电器,2024,60(5):46-53,60,9.
