基于架空线雷击概率辅助计算软件的设计研究  

Design and Research of an Auxiliary Calculation Software for Lightning StrikeProbability of Overhead Line

作　　者：郎需军 杨博[1] 马芳[1] 李子扬[1] LANG Xujun;YANG Bo;MA Fang;LI Ziyang(Shandong Electic Power Engineering Consuling Institute Corporation,Jinan 250013,China)

机构地区：[1]山东电力工程咨询院有限公司,山东济南250013

出　　处：《电工技术》2023年第3期207-211,215,共6页Electric Engineering

基　　金：国家自然科学基金项目(编号51307121)。

摘　　要：输电线路作为电力系统的关键组成部分,保持其安全稳定运行至关重要。据统计,由输电线路故障引起的电力系统事故占多数,做好输电线路的防雷工作对我国经济的持续发展具有重要意义。首先研究了雷电相关参数以及防雷计算的基本方法,对比各算法的优缺点,然后结合环境因素,提出了基于改进电气几何模型法的地区差异化防雷算法。针对不同地形条件,提出了线路绕击跳闸率的计算方法,并使用MATLAB图形用户界面,开发了一款差异化防雷辅助计算软件,可以实现不同电压等级和不同地区年雷击次数、击杆率、耐雷水平、绕击跳闸率、输电线路雷击跳闸率的快速准确计算。Transmission line is a key component of power system.It is important to keep transmission line running safely and steadily.According to statistics,power system accidents caused by transmission line failures acount for the majority,and doing a good job in lightning protection of transmission lines is of great significance to the sus tainable development of China's economy.Firstly,the lightning related parameters and the basic methods of lightning protection calculation are studied,and the advantages and disadvantages of each algorithm are compared.Combined with environmental factors,Eregionally differentiated lightning protection algorithm based on improved electrical geometric model method is proposed.Based on the unique geomorphological characteristics under the transmission line conductor,a calculation method for the trip rate of line winding is proposed according to different terrain conditions.Using the MATLAB graphical user interface,a differentia ted lightning protection assisted calculation software is developed.The software can realize the fast and accurate calculation of the annual lightning strike number,stick rate,lightning resistance level,bypass trip rate and transmission line lightning trip rate in different voltage levels and different regions.

关 键 词：输电线路 雷击概率 雷击跳闸率 辅助计算 软件设计 

分 类 号：TM863[电气工程—高电压与绝缘技术]