Effects of nearby buildings on lightning induced voltages on overhead power distribution lines

被引：19

作者：

Borghetti, Alberto ^{[1
]}

Napolitano, Fabio ^{[1
]}

Nucci, Carlo Alberto ^{[1
]}

Paolone, Mario ^{[2
]}

机构：

[1] Univ Bologna, I-40126 Bologna, Italy

[2] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland

来源：

ELECTRIC POWER SYSTEMS RESEARCH | 2013年 / 94卷

关键词：

Finite element method; Lightning-induced voltages; Overhead lines; HORIZONTAL ELECTRIC-FIELD; MAGNETIC-FIELDS; RETURN STROKES; ELECTROMAGNETIC ENVIRONMENT; STRUCK;

D O I：

10.1016/j.epsr.2012.05.008

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

For the case of urban overhead lines, the presence of nearby buildings is expected to affect the overvoltages induced by nearby cloud-to-ground lightning return strokes. So far, this effect has been seldom taken into account in the literature on the subject. The paper presents a 3D FEM model that calculates the lightning electromagnetic pulse (LEMP) taking into account the presence of a building placed in proximity of the LEMP-coupled overhead line. As a first approximation, all the metallic elements are assumed as perfect conductors, as well as the ground plane. The calculated fields are then introduced in the Agrawal et al. coupling model for the calculation of the induced voltages. The results of a sensitivity analysis carried by varying the model and dimensions of the building, its distance to the line and the position of the lightning stroke location are presented and discussed. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：38 / 45

页数：8

共 25 条

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