电流谐波环境下电缆故障监测技术研究  

Research on cable fault monitoring technology in current harmonic environment

作　　者：汪元红 张菲 金德发 邱扬波 黄永圣 WANG Yuanhong;ZHANG Fei;JIN Defa;QIU Yangbo;HUANG Yongsheng(Wuhan Sanjiang Zhongdian Technology Co.,Ltd.,Wuhan 430040,China)

机构地区：[1]武汉三江中电科技有限责任公司,湖北武汉430040

出　　处：《粘接》2025年第5期189-192,共4页Adhesion

摘　　要：为解决电力电缆运行过程中的故障监测难题,从分析监测系统组成、功能要求和技术指标出发,基于高频脉冲电流法搭建了电缆故障监测系统。在局部放电监测系统监测过程和方法等方面进行分析和优化,并通过改进优化策略对某电流谐波环境下的电缆故障进行检测分析。结果表明,采用离线监测局部放电监测系统,可实时监测电流谐波环境下电缆电信号等数据,准确判断电流谐波环境下电缆故障点,范围精确在监测点周围20 m内;结合电流谐波环境下电缆运行过程中的电缆设置情况,可进一步排查找出电缆故障的精确位置,并结合监测系统数据库,给出电缆故障原因以及电缆故障排除措施。In order to solve the problem of fault monitoring in the operation of power cables,starting from the analysis of the composition,functional requirements and technical indicators of the monitoring system,a cable fault monitoring system was built based on the high-frequency pulse current method.The monitoring process and method of partial discharge monitoring system were analyzes and optimizes,and the cable fault in a current harmonic environment by improving the optimization strategy were detects and analyzes.The results showed that the off-line monitoring partial discharge monitoring system could monitor the cable electrical signal and other data in the current harmonic environment in real time,and accurately judge the cable fault point in the current harmonic environment,and the range was accurate within 20 m around the monitoring point.Combined with the cable setting during cable operation in the current harmonic environment,the precise location of the cable fault could be further investigated,and the cause of the cable fault and the cable troubleshooting measures could be given in combination with the monitoring system database.

关 键 词：电流谐波 电缆故障 高频脉冲电流法 离线监测 定位监测 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] TM75[自动化与计算机技术—控制科学与工程]