基于机载雷达数据的输电线弛度在线监测系统设计

Design of Power Line Sag On-line Monitoring System Based on Airborne Radar Data

架空输电线弛度是电力架线施工验收的重要指标,为解决利用传统经纬仪测量弛度受通视条件限制且测量范围小的问题,设计一种基于机载雷达数据的输电线弛度在线监测系统。利用模糊统计法对雷达数据进行分类,提取测点数据利用悬链方程进行弛度拟合分析,数据无线通信满足在线检测要求。所设计的弛度在线监测系统应用于施工现场,系统运行稳定且最大误差不超过±1%,能够有效解决检测中面临的复杂地形、线路大跨度远距离弧垂测量难度大的问题,能够实时指导现场施工,且低成本,具有较好的推广应用价值。

The sag of overhead transmission line is an important index for power line construction acceptance.In order to solve the problem that the traditional theodolite measurement sag is limited by visibility conditions and the measurement range is small,this paper designs an online monitoring system for transmission line sag based on airborne radar data.The radar data is classified by fuzzy statistics,and the catenary equation is used to extract measurement point data for sag fitting analysis.Data wireless communication meets the requirements of online detection.The online sag monitoring system designed in this paper is applied to the construction site.The system runs stably and the maximum error is not more than±1%,which can effectively solve the problems of complex terrain and difficult measurement of long span and long sag of lines in detection,and can guide the on-site construction in real time with low cost,and has good application value.