10kV地下排管电缆的分布式光纤在线测温技术的应用研究  

On-line Temperature Monitoring of 10 kV Underground Cables-in-pipe Row Based on Distributed Optical Fiber Sensing Technology

作　　者：郑雁翎[1,2] 仪涛[1] 张冠军[1] 李洪杰[1] 张延辉[3] 杨凤民[3] 宋伟[4] 

机构地区：[1]西安交通大学电气工程学院电力设备电气绝缘国家重点实验室,陕西西安710049 [2]宝鸡文理学院电子电气工程系,陕西宝鸡721007 [3]郑州供电公司,河南郑州450006 [4]河南电力公司,河南郑州450052

出　　处：《高压电器》2010年第11期49-52,共4页High Voltage Apparatus

摘　　要：在电力电缆监测中,温度是一个非常关键的参数,精确的、连续的温度数据对于电力电缆的工作状态监测、动态负荷测定、过热点报警和电缆管道的火灾监测等都具有非常重要的意义。笔者采用基于拉曼散射效应和拉曼光学时域反射测量技术的分布式光纤测温系统,对10kV地下排管敷设的电缆温度进行实时地、多测量点监测,获得了精确的点位温度值,可有效用于在线连续监测,为电缆载流量的确定提供了参考数据。Temperature is a vital parameter in monitoring of power cables.Accurate and continuous temperature data are very important to working condition monitoring,dynamic load determination,overheating alarm,and fire forecast of the power cables.In this paper,the distributed temperature sensing （DTS） system based on Raman scattering effect and optic time domain reflection （OTDF） was applied in real-time temperature monitoring of 10 kV underground cables-in-pipe row,and the temperature data of the power cables were obtained accurately,which can be adopted as reference for determination of current carrying capacity of power cables.

关 键 词：光纤 电缆 在线监测 测温系统 

分 类 号：TM757[电气工程—电力系统及自动化]