摘要
介绍了对某220 kV高压线跨越建筑物段架设屏蔽线来抑制工频电场的方案。首先,测量高压输电线路近区高层建筑物工频电场污染情况,然后,利用有限元法仿真分析通过架设不同屏蔽线丝径、屏蔽线根数、屏蔽线间距、屏蔽线位置时,距阳台地面1.5 m处场强分布情况。研究不同参数屏蔽线对于工频电场的抑制效果,为抑制超标工频电场提供了一种有效的工程措施。
This paper proposes a scheme to install shielding wires to suppress power frequency electric field of the buildings with a 220 kV transmission line overhead. At first, the electric field pollution was measured. Then by the finite-element method, the field intensity distribution 1.5 m above the balcony ground level was simulated and ana- lyzed in terms of different parameters including diameter, quantity, spacing and location of shielding wires, which produce different suppression effects on the electric field. The proposed method can be effective in practical electric field suppression projects.
出处
《华东电力》
北大核心
2011年第12期2017-2021,共5页
East China Electric Power
基金
国家重点基础研究发展计划项目(973项目)(2009CB7-24507)~~
关键词
高压输电线路
屏蔽线
抑制工频电场
有限元法
HV transmission line
shielding wire
power frequency electric field suppression
finite-element method
