摘要
通过对邵阳山区10 kV配电线路的调研和勘测,找出配电线路在防雷措施和绝缘配合上存在的普遍性缺陷和薄弱环节,利用有限元仿真软件分析不同地形地貌环境下的雷害差异性原因,并建立合理的仿真分析模型。仿真结果表明:配电线路的雷害情况与其线路所处的地形地貌密切相关,位于山坡倾角较大或土壤电阻率较低的配电线路,其雷害事故相对更加频繁严重;位于建筑区的配电线路,由于受到高层建筑的屏蔽保护,雷害相对较小,线路运行可靠性较高。
According to the research of10kV distribution line located at Shaoyang mountainous regions,it is found that the coordination weakness between lightning protection and insulation defects.The reasons of lightning damage differences under different topography were analyzed based on the finite element simulation software,and appropriate simulation model was set up.The simulation results show that lightning damage for distribution lines and topography are closely related.The distribution lines,which hill inclination is greater or the soil resistivity is lower,the lightning damage is more frequent and severe.The distribution lines located in the building area,the lightning damage is relatively smaller and the line operation is more reliable,because of the shield protection by high-rise buildings.
作者
王建军
唐谟懿
周力行
WANG Jian-jun;TANG Mo-yi;ZHOU Li-xing(School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410004, China;Shaoyang Electric Power Bureau,Shaoyang 422400, China)
出处
《电力科学与技术学报》
CAS
北大核心
2017年第1期151-156,共6页
Journal of Electric Power Science And Technology
关键词
配电线路
雷害
地形地貌
有限元仿真软件
distribution lines
lighting damage
topography
finite element simulation software
