济南市隧道巡检机器人电缆故障监测方法分析

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英文篇名：Analysis of Monitoring Methods for Cable Faults of Tunnel Inspection Robots in Jinan City 作者：姜涛 ; 葛少伟 ; 李德泉 ; 牟泽刚 ; 孟庆瑞 英文作者：Jiang Tao;Ge Shaowei;Li Dequan;Mu Zegang;Meng Qingrui;State Grid Jinan Power Company; 关键词：济南市 ; 隧道 ; 巡检机器人 ; 故障 ; 监测 英文关键词：Jinan city;;tunnel;;inspection robot;;malfunction;;monitor 中文刊名：KJTB 英文刊名：Bulletin of Science and Technology 机构：国网济南供电公司; 出版日期：2019-04-30 出版单位：科技通报 年：2019 期：v.35;No.248 语种：中文; 页：KJTB201904012 页数：5 CN：04 ISSN：33-1079/N 分类号：77-81

摘要

针对当前监测方法无法直观地反映出隧道电缆表面温度随时间的变化情况,给隧道电缆的运行维护与日常管理工作带来困难,提出一种基于分布式光学温度传感器的电缆故障监测方法。以济南市为例,详细设计隧道巡检机器人控制系统的控制单元、各功能单元、电源电路与驱动程序,完善系统的整体控制框架;其中,隧道巡检机器人电缆故障监测装置的光路设计部分采用拉曼分布式光纤温度传感器作为基本结构,同时选择具有较强抗干扰性能的中心频率为300 MHz的数据采集卡、工作频率为500 kHz～80 MHz的高频宽带传感器、放大器对电缆的温度、电缆外部绝缘破坏程度、应力应变以及局部放电进行监测。实验结果表明,所提方法非常适用于济南市隧道电缆故障的监测与抢修,能够准确的反映出隧道电缆表面温度随时间的变化情况,对提高隧道电力系统供电质量具有重要意义。
        In view of the current monitoring methods can not directly reflect the changes in the temperature of the tunnel cable surface with time, it brings difficulties to the operation and maintenance of the tunnel cable and the daily management, and proposes a cable fault monitoring method based on the distributed optical temperature sensor. Taking Ji'nan as an example, the control unit, function unit, power circuit and driver of the control system of the tunnel inspection robot are designed in detail, and the overall control frame of the system is perfected. At the same time, a data acquisition card with a central frequency of 300 MHz with strong anti-interference performance, a high frequency broadband sensor with a frequency of 500 kHz～80 Mhz, the temperature of the cable, the damage degree of the cable external insulation, the stress strain and the partial discharge are monitored. The experimental results show that the proposed method is very suitable for the monitoring and repair of the cable fault in Ji'nan tunnel. It can accurately reflect the change of the temperature of the tunnel cable surface with time, and is of great significance to improve the power supply quality of the tunnel power system.

引文

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