特高压输电线路下建筑物邻近区域电场的数值仿真

摘要

本文主要探讨电磁环境数值仿真方面仍未透彻分析的两个问题：简化后的直导线模型与考虑弧垂的线路模型相比，是否对特高压输电线路下方建筑物邻近区域的电场仿真结果有明显影响；建筑物棱角处以倒角的方式钝化，随着倒角深度的不断增加，是否可以有效改善建筑物棱角附近区域的场强分布。分析结果表明：简化直导线模型与考虑弧垂的实际线路模型相比，非畸变区域的场强值均偏大，楼顶棱边及阳台等畸变区域的场强值均偏小；通过倒角的方式钝化建筑物棱边不能有效改善建筑物特定区域的电场环境。%This paper mainly discusses two numerical simulation questions which are still not ana⁃lyzed thoroughly: whether the straight line model compared with the model consider line sag has ob⁃vious effects on electric field simulation results on the focus area or not; when we chamfer the edg⁃es of the buildings, whether can we effectively improve the field intensity distribution near the edg⁃es of buildings. The results show that the straight line model compared with the model consider line sag will let the field intensity of non- distortion area larger and distortion area smaller, and through the way of chamfering can't effectively improve building electric field environment in a par⁃ticular area.