基于分布式光纤传感技术的接触网附加导线实时在线监测方案  

Real-time Online Monitoring Scheme for Additive Conductors of OCS Based on Distributed Optical Fiber Sensing Technology

作　　者：古晓东 罗健 张琦 GU Xiaodong;LUO Jian;ZHANG Qi(Electrification&Telegraphy Engineering Design Research Department,China Railway Design Corporation,Tianjin 300308,China)

机构地区：[1]中国铁路设计集团有限公司电化电信工程设计研究院,天津300308

出　　处：《中国铁路》2024年第10期67-71,共5页China Railway

基　　金：国家重点研发计划(2023YFB4302001);中国国家铁路集团有限公司科技研究开发计划项目(N2022G030)。

摘　　要：铁路接触网附加导线故障具有早期发现困难、偶发性强、故障定位难度大等特点,直接影响接触网系统运行可靠性的提升,对行车安全构成潜在威胁。提出通过架设光纤复合附加导线并设置监测系统的方案,利用分布式光纤技术实时监测附加导线运行状态并实现列车运行位置监测,重点围绕监测系统方案、导线监测、列车运行状态监测等开展论述。该监测方案具有灵敏度高、监测距离长、不受隧道等环境限制等优势,可实现接触网架空附加导线重大故障、列车运行状态的实时监测,提升了运维效率和安全可靠性。同时为搭建具有实时监测、实时评价、实时报警等特点的智能接触网系统提供了基础技术支撑。The faults of additive conductors in railway OCS are characterized by challenges in early detection,high sporadic occurrence,and significant difficulties pinpointing their location.These issues directly impact the operational reliability of the OCS system and pose potential risks to safety during operations.This paper proposes a solution that involves the installation of optical fiber composite additive conductors and the establishment of a monitoring system.By utilizing distributed optical fiber technology,the system can monitor the operational status of the additive conductors in real time and facilitate train location tracking.The discussion primarily focuses on the three aspects:the scheme of monitoring system,conductor monitoring,and the monitoring of train operating status.This monitoring scheme offers several advantages,including high sensitivity,extended monitoring range,and immunity to environmental constraints,such as those presented by tunnels.It enables real-time monitoring of major faults in the overhead additive conductors of OCS,as well as real-time monitoring of train operating status,thereby enhancing O&M efficiency and safety reliability.Additionally,it provides the essential technical support for the development of an intelligent OCS system,featuring capabilities such as real-time monitoring,evaluation,and alarm notifications.

关 键 词：接触网 附加导线 分布式光纤传感 实时在线监测 

分 类 号：U225.4[交通运输工程—道路与铁道工程]