雷电统计参数对电网雷击跳闸率计算的影响  

Influence of Lightning Statistical Parameters on the Calculation of Lightning Trip Rate in Power Grid

作　　者：黄良 张英 曾鹏 熊泽豪 李涵[3] HUANG Liang;ZHANG Ying;ZENG Peng;XIONG Zehao;LI Han(Guizhou Power Grid Co.,Ltd.,Institute of Electric Power Science,Guiyang 550000,China;CRRC Zhuzhou Institute,Zhuzhou 412005,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China)

机构地区：[1]贵州电网有限责任公司电力科学研究院,贵阳550000 [2]中车电力机车研究所,湖南株洲412005 [3]武汉大学电气与自动化学院,武汉430072

出　　处：《电瓷避雷器》2021年第5期86-92,共7页Insulators and Surge Arresters

基　　金：国家自然科学基金青年基金(编号:51307125)。

摘　　要：雷电活动是输电线路雷害的主要成因。近年来随着我国雷电定位精度的提高,传统的输电线路防雷计算理论亟需通过线路雷害统计数据的验证。笔者结合国内外输电线路防雷标准,通过2012~2014年广西自治区电网雷电定位系统与220 kV输电线路雷害数据的统计,分析了线路雷击跳闸率与关键雷电参数间的关系。并采用规程法计算了该地区典型220 kV线路雷击跳闸率,对比计算结果与统计值的偏差,说明各地区分别统计的地闪密度和雷电流幅值参数有助于减小线路雷击跳闸率计算误差。Lightning activity is the main cause of transmission line trip-outs. With the improvement of the accuracy of lightning location system in China, it is necessary to verify the traditional theory of transmission line lightning protection calculation with statistical data. Based on the lightning protection standards at home and abroad, and according to the statistics of lightning location system and 220 kV transmission line lightning data in Guangxi Autonomous Region from 2012 to 2014, the relationship between lightning trip-out rate and the key parameters of the lightning is analyzed. The lightning trip-out rate of typical 220 kV lines in this area is calculated by the rule method, and the deviation between the calculated results and the statistical values is compared. It shows that the statistics of the ground flash density and the lightning current amplitude parameters in each area are helpful to reduce the calculation error of lightning trip-out rate.

关 键 词：输电线路防雷 雷击跳闸率 规程法 地闪密度 雷电流幅值 

分 类 号：TM863[电气工程—高电压与绝缘技术]