The influence of sag in the Electric Field calculation around High Voltage Overhead transmission lines

2006 IEEE Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2006-10-01 DOI:10.1109/CEIDP.2006.312097

R. Amiri, H. Hadi, M. Marich

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引用次数: 42

Abstract

The method of calculation of the electric field assumes that the current carrying power line conductors are straight horizontal wires. This assumption results in a model whose electric fields are distorted from those produced in reality. The influence of the geometry of the overhead line is largely noticed for the calculation of the electric field especially in the vicinity of the half span where the electric field becomes very significant. This paper presents a calculation of electric field distribution at the ground level, near of the overhead lines. To confirm our results we have calculate the electric field by three methods, the first is a software package based on Charge Simulating Method. This result is confirmed by another numerical calculation based on the use of two vectors expressing the point of calculation, this numerical method express the pace of the drivers by using the mathematical form of each phase. As third method of confirmation of result, we used a computation software named Flux 3D based on the use of the finite element method; where the shape of the drivers of phase is described by the geometrical form of the phases.

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垂降对高压架空输电线路周围电场计算的影响

电场的计算方法假定载流电力线导体为直的水平导线。这个假设导致模型中的电场与实际产生的电场是扭曲的。架空线路的几何形状对电场计算的影响很大，特别是在半跨距附近，电场变得非常显著。本文提出了一种接近架空线的地面电场分布的计算方法。为了验证我们的结果，我们用三种方法计算了电场，第一种是基于电荷模拟方法的软件包。这一结果在另一种数值计算中得到了证实，该数值方法采用两个向量表示计算点，该数值方法利用每个相位的数学形式来表示驾驶员的速度。作为第三种结果确认方法，我们使用了基于有限元法的计算软件Flux 3D;其中相位驱动器的形状由相位的几何形状来描述。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2006 IEEE Conference on Electrical Insulation and Dielectric Phenomena

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