输电线路覆冰监测的OPGW传感应用研究

Research on icing monitoring of OPGW transmission line

近年来,我国输电线路遭受冰灾的影响日益严重,研究发现能够准确监测线路覆冰情况,进而采取防冰、除冰的措施至关重要。特别在我国南方地区冬季输电线路容易受到自然覆冰的影响,出现输电线路断线、覆冰闪络和倒塔等电力事故,因此冬季输电线路覆冰情况已经成为电网安全运行研究的主要问题。基于OPGW光缆的输电线路故障定位技术,首先将OPGW传感覆冰监测系统投入实际运用,并观察其应用结果。然后将系统挂网后的运行监测数据和输电线路上实际覆冰数据进行对比分析,发现OPGW传感覆冰监测系统能有效监测到线路上覆冰的情况,并给予正确的提示。同时,仿真结果与实际情况结果几乎无误差,证明了此OPGW传感覆冰监测系统的可行性。

Transmission line is an important part of the safe and stable operation of power grid. In recent years, the ice disaster ofoverhead transmission lines is increasingly severe in China It i s very important for us to monitor the icing of transmission lines and take measures to deal with anti-icing and deicing. In southern region, overhead line easily afected by natural icing, accidents of electric power that transmission line breaks, icc fashover, inverted tower were happened in the past Therefore the natural icing of overhead lines in southern region has be a maintenancc problem. In this paper, transmission line fault location technology based on the OPGW （ optical fiber composite overhead ground wire） cable was discussed and analyzed. Then OPGW icing monitoring system was put into actual operation and the practical application results of OPGW icing monitoring system are observed. The sydata of natural icing were compared and analyzed. The icing model is able to monitor the icing condition of overhead make the correct icing alarm. The analyzed results shows OPGW icing monitoring system is very results and the actual location of fault point were very close, which proved the feasibility of the