基于OTDR的电力通信光纤性能测量与数据分析技术研究  

Research on OTDR⁃based power communication optical fiber performance measurement and data analysis technology

作　　者：张阁[1] 王晓峰 张之栋 王晓东[1] 安宁 刘洁[1] ZHANG Ge;WANG Xiaofeng;ZHANG Zhidong;WANG Xiaodong;AN Ning;LIU Jie(Northeast Electric Power Design Institute Co.,Ltd.,Changchun 130012,China;Northeast Branch,State Grid Corporation of China,Shenyang 110000,China)

机构地区：[1]东北电力设计院有限公司,吉林长春130012 [2]国家电网有限公司东北分部,辽宁沈阳110000

出　　处：《电子设计工程》2023年第20期105-108,113,共5页Electronic Design Engineering

基　　金：吉林省教育厅科研项目(JJKH20180418KJ)。

摘　　要：光纤通信系统中的光纤性能测量,对于电力系统的正常工作具有重要意义。针对大范围电力通信数据存在检测困难的问题,文中通过引入高灵敏度的光时域反射仪,有效提高了检测的空间分辨率,同时也保证了测量的范围。为解决干扰信号对后续数据分析的影响,在对光信号进行分析的基础上采用噪声补偿的方法显著降低了传感器的噪声损失,从而防止了恶劣环境下传感器性能的下降。静态实验测量结果表明,当光纤长度在500 m以内时,其信号标准差均在0.055 rad以内,基于实验结果进一步明确了该测量技术的最佳适用范围,证明了该系统具有良好的抗干扰能力。The measurement of optical fiber performance in optical fiber communication system is of great significance for the normal operation of power system.Aiming at the problem of difficult detection of large⁃scale power communication data,this paper introduces a high⁃sensitivity optical time⁃domain reflect⁃ometer to effectively improve the spatial resolution and ensure the measurement range.In order to solve the influence of interference signal on subsequent data analysis,based on the analysis of optical signal,the noise compensation method is adopted to significantly reduce the noise loss of the sensor,so as to prevent the decline of sensor performance in harsh environment.The static experimental measurement results show that when the fiber length is less than 500 m,the signal standard deviation is less than 0.055 rad.Based on the experimental results,the best application range of the measurement technology is further clarified,and it is proved that the system has good anti⁃interference ability.

关 键 词：OTDR 电力通信 光纤检测技术 噪声补偿 

分 类 号：TN-9[电子电信]