摘要
为了分析多柱并联避雷器组均流特性对整体吸能特性的影响,笔者简要介绍了多柱并联避雷器组运行过程中电流分布特性。结合南网"两渡"直流输电工程,对换流站单回中性母线避雷器分流特性进行了理论计算,从理论上分析了多柱并联避雷器组单柱电流分布差异时其整体吸能特性。最后根据现场参数搭建了仿真平台,仿真结果表明多台避雷器并联情况下均流系数对整体吸能影响很大,性能恶化的避雷器吸收更多的能量,且使得整支避雷器总吸能严重下降。
In order to analyze the influence of current sharing characteristics on the overall energy absorption characteristics of multi-column parallel arresters,the current distribution characteristics of multi-column parallel arresters during operation are briefly introduced.The shunt characteristics of single-circuit neutral bus arresters in converter stations are calculated theoretically,and the energy absorption characteristics of multi-column parallel arresters with different current distribution are analyzed theoretically.Finally,a simulation platform is built according to the field parameters.The simulation results show that the current sharing coefficient has great influence on the overall energy absorption,and the deteriorating arrester absorbs more energy,moreover reduce total energy absorption greatly.
作者
刘波
隗震
华勇
张崧
韩剑
李文岚
吴斌
LIU Bo;WEI Zhen;HUA Yong;ZHANG Song;HAN Jian;LI Wenlan;WU Bin(NARI Group Liability Corporation(State Grid Electric Power Research Institue Liability Corporation),Wuhan 430074,China;Luneng Group Liability Corporation,Beijing 150006,China;Harbin Electric Power Limited Company,Harbin 150006,China)
出处
《电瓷避雷器》
CAS
北大核心
2020年第4期54-59,67,共7页
Insulators and Surge Arresters
基金
国家电网公司总部科技项目(高压直流系统熔断型直流避雷器组的研制及示范应用)。
关键词
中性母线
多柱并联
避雷器
均流
吸能
neutral bus
multi-column parallel
arrester
current sharing
absorption of energy
