基于激光点云数据的架空输电线路动态增容交叉跨越校核方法  

Checking Method for Dynamic Capacity-Increase Crisscross Spanning of Overhead Transmission Lines Based on Laser Point Cloud Data

作　　者：杨伟三 马建国 黄俊杰 张璐 曾凡涛 YANG Weisan;MA Jianguo;HUANG Junjie;ZHANG Lu;ZENG Fantao(State Grid Hubei Electric Power Co.,Ltd.,Yichang Hubei 443000,China;State Grid Hubei Electric Power Co.,Ltd.,Wuhan Hubei 430077,China;Electric Power Research Institute,State Grid Hubei Electric Power Co.,Ltd.,Wuhan Hubei 430077,China;State Grid Hubei Electric Power Co.,Ltd.,Enshi Hubei 436000,China)

机构地区：[1]国网湖北省电力有限公司,湖北宜昌443000 [2]国网湖北省电力有限公司,湖北武汉430077 [3]国网湖北省电力有限公司电力科学研究院,湖北武汉430077 [4]国网湖北省电力有限公司,湖北恩施州436000

出　　处：《湖北电力》2021年第5期20-25,共6页Hubei Electric Power

摘　　要：架空输电线路交叉跨越校核是线路动态增容的重要环节。传统交叉跨越校核方法基于人工现场测量交跨点线路弧垂、环境温度等数据,计算得到增容后导线温度下的交叉跨越距离,过程较繁琐且易产生人为测量误差。提出一种基于输电通道激光点云数据的交叉跨越校核方法,仅需在点云数据采集时同步采集导线温度,在三维模型中完成动态增容交叉跨越校核,提高了交叉跨越距离测量精度,并在此基础上实现了最大允许载流量计算。The check for overhead transmission line crisscross spanning is an important link of line dynamic capacity-increase. The traditional checking method for crisscross spanning is based on the manual field measurement of the line sag and ambient temperature at the crisscross spanning point to calculate and obtain the crisscross spanning distance under the conductor temperature after capacity-increase, and its process is cumbersome and easy to produce artificial measurement errors. This paper proposes a checking method for line crisscross spanning based on laser point cloud data of transmission channel,which only needs to collect wire temperature synchronously during point cloud data acquisition in order to complete the check for dynamic capacityincrease crisscross spanning in a three-dimensional model. The proposed checking method improves the measurement accuracy of crisscross spanning distance,and also on this basis,realizes the calculation of maximum allowable carrying ampacity.

关 键 词：输电线路 动态增容 载流量 弧垂 交叉跨越 

分 类 号：TM726[电气工程—电力系统及自动化]