基于分布式光纤测温的电缆温度在线监测系统设计与应用

Application of Cable Temperature on-Line Monitoring System Based on Distributed Temperature Sensing

文中叙述了分布式光纤测温传感器的工作原理,设计了基于分布式光纤测温的电缆状态在线监控系统,并介绍了该系统在聊城供电公司高压电缆监控中的应用情况。系统检测结果表明,该系统能够满足在温度精度±1℃的前提下,保证测量精度1 m的设计指标,为发现电缆的潜在危险,实现对电缆的全方位监测,为电网安全运行提供保障。

The paper introduced the working principle of the Distributed Temperature Sensing（DTS）, designed the ca- ble temperature on-line monitoring system based on distributed temperature sensing, and introduced the application of this system in Liaocheng power supply company. The results of running test in Liaocheng power supply company showed that the system can ensure measurement precision 1 m design index on the primise of temperature accuracy 1℃, to find the po- tential dangers of the cable, realizing whole monitoring and providing protection for the safe operation of power grid.