基于相干光时域反射计的电力光缆智能监控系统研究

Research on Power Cable Intelligent Monitoring System Based on Coherent Optical Time Domain Reflectometer

通过研究电力光缆运行中发生的故障特点,提出一种电力光缆监控系统。基于相干光时域反射计对光纤信号进行采集分析,并结合集合经验模态分解法(EMD)对数据进行降噪和优化处理,当光缆发生故障时,运用光路自动切换系统对光路瞬时转换,同时依靠定位报警功能对光缆故障点进行精准定位和报警。该系统有效提高了对光缆的管理和检修效率,有利于电力通信网络的稳定运行。

A power cable monitoring system was designed by studying the characteristics of faults occurring in the operation of power cables.The optical fiber signal was collected and analyzed based on the coherent optical time domain reflectometer,and the data was denoised and optimized by the integrated empirical mode decomposition method(EMD).When the optical cable failed,the optical path automatic switching system was used to instantaneously convert the optical path.At the same time,the positioning alarm function was used to accurately locate and alarm the cable fault point.The design of the system effectively improved the efficiency of cable management and maintenance,and was conducive to the stable operation of the power communication network.