摘要
通过激光雷达设备获取的输电线路通道高精度三维激光点云,可获取输电通道内地物的实时状态,对于通道环境的实时监测意义重大;但目前利用激光点云数据进行不同气象条件下导线弧垂状态模拟的研究仍较少。基于此,结合架空导线的力学分析、几何分析,详细阐述了利用激光点云数据进行工况模拟的原理与方法;选取某植被茂密区500 kV输电线路进行了高温、覆冰、大风等工况模拟实验,并进行了通道环境安全距离检测,验证了该方法的有效性。
The high-precision 3D laser point cloud of transmission line channels obtained through LiDAR devices can obtain static wire sag and real-time distance between wires and ground feature in the channels, which is of great significance for real-time channel environment detection.However, there are still few studies on the use of laser point cloud data to simulate wire sag state under different meteorological conditions. Combining mechanical and geometric analysis of overhead conductors, we elaborated the principle and method of working condition simulation based on laser point cloud data, selected a 500 kV transmission line in a dense vegetation area for high-temperature, ice-covered and strong wind working conditions simulation experiments, and tested the channel environment to verify the effectiveness of the method.
作者
田茂杰
杜伟
胡伟
王宁
刘成强
郑思嘉
TIAN Maojie;DU Wei;HU Wei;WANG Ning;LIU Chengqiang;ZHENG Sijia(State Grid General Aviation Co.,Ltd.,Beijing 102209,China)
出处
《地理空间信息》
2022年第3期165-170,共6页
Geospatial Information
基金
国家电网有限公司科技资助项目(1600/2020-44006B)。
关键词
激光点云
输电线路
工况模拟
应力
弧垂
laser point cloud
transmission line
working condition simulation
stress
sag
