OPGW光纤传感监测系统的绝缘子覆冰闪络信号分析  

Insulator Icing Flashover Signal Analysis of OPGW Optical Fiber Sensing Monitoring System

作　　者：迟兴江[1] 蓝骞[1] 潘金虎 李华[1] 杜觉晓 叶宝安 张哲民 CHI Xingjiang;LAN Qian;PAN Jinhu;LI Hua;DU Juexiao;YE Baoan;ZHANG Zhemin(Maintenance Branch Company State Grid Beijing Electric Power Corporation, Beijing 100054, China;Wuhan Kangpu Changqing software technology Limited by Share Ltd., Wuhan 430073, China)

机构地区：[1]国网北京市电力公司检修分公司,北京100054 [2]武汉康普常青软件技术股份有限公司,武汉430073

出　　处：《电瓷避雷器》2019年第3期178-182,共5页Insulators and Surge Arresters

摘　　要：输电线路绝缘子覆冰闪络已成为影响线路安全稳定运行的重要问题,目前国内外学者对此进行了大量理论和实验研究,但对现场覆冰闪络事故的数据分析还鲜见报道。基于北京某500 kV线路绝缘子覆冰闪络事故,介绍了OPGW光纤传感闪络监测原理,分析了该事故闪络数据特征。验证了OPGW光纤传感监测覆冰闪络的可行性与有效性,分析结果表明冰闪信号工频特征十分明显,频率分布主要集中在0~500 Hz低频段,频谱峰值多是在工频或其谐波频率附近。Icing flashover of transmission line insulators has become an important problem affecting the safe and stable operation of transmission lines. At present, a large number of theoretical and experimental studies have been carried out by scholars both at home and abroad, but the data analysis of ice flashover accident is rarely reported. Based on the ice flashover accident of insulators in a 500 kV line in Beijing, the principle of OPGW light sensor flashover monitoring is introduced, and the characteristics of flashover data are analyzed. The feasibility and effectiveness of icing monitoring by OPGW fiber sensor are verified. The analysis results show that the frequency characteristic of ice flashover signal is very obvious. The frequency distribution is mainly concentrated in the low frequency band of 0~500Hz, and the peak frequency is near the power frequency or its harmonic frequency.

关 键 词：覆冰 OPGW 绝缘子 光纤传感 覆冰闪络特性 

分 类 号：TM216[一般工业技术—材料科学与工程]