基于行波的电缆高频局放监测算法设计  

Design of High-Frequency Partial Discharge Monitoring Algorithm for CablesBased on Traveling Waves

作　　者：朱道俊 陈海涛 杨振邦 ZHU Daojun;CHEN Haitao;YANG Zhenbang(Yunnan Power Grid Co.,Ltd.,Dali Power Supply Bureau,Dali 671000,China)

机构地区：[1]云南电网有限责任公司大理供电局,云南大理671000

出　　处：《电工技术》2022年第5期42-44,共3页Electric Engineering

摘　　要：介绍了基于行波的电缆局放监测算法,利用特高频局放传感器对电缆放电信号进行采集,结合现场放电情况对采集的波形进行处理。利用总结出来的电缆放电规律,将现场传感器采集的波形进行对比,创建特征量数据库。当传感器再次传回行波时,利用机器已学习的算法进行故障对比,可实现电力电缆的高频局放监测,同时可对电力电缆环流进行监测,对于电力电缆正常运行具有重大意义,减少了不必要的电缆故障停电时间,经济效益良好。The partial discharge monitoring algorithm for cables based on traveling wave is introduced.The UHF PD sensor is used to collect the cable discharge signal,and the collected waveform is processed in combination with the field discharge.Using the summarized cable discharge law,the waveforms collected by field sensors are compared,and the characteristic quantity database is created.When the sensor returns the traveling wave again,the machine learned algorithm is used for fault comparison,and the high-frequency partial discharge monitoring of power cable can be realized.At the same time,it can monitor the circulating current of power cable,which is of great significance for the normal operation of power cable,reduces unnecessary cable fault and power outage time,and has good economic benefits.

关 键 词：电力电缆 特高频局放监测 算法 

分 类 号：TM247[一般工业技术—材料科学与工程]