Induced Current Distribution in 3D Soil Model as Lightning Impulse Discharge Strike Earth Surface

被引：2

作者：

Fajingbesi, Fawwaz Eniola ^{[1
]}

Midi, Nur Shahida ^{[1
]}

Elsheikh, Elsheikh M. A. ^{[2
]}

Yusoff, Siti Hajar ^{[1
]}

Khan, Sheroz ^{[1
]}

Azman, Amelia Wong ^{[1
]}

机构：

[1] Int Islamic Univ, Elect & Comp Engn, Kulliyyah Engn, Gombak, Malaysia

[2] Univ Kuala Lumpur, Elect Engn Sect, British Malaysian Inst, Kampus Cawangan, Gombak, Malaysia

来源：

2019 9TH INTERNATIONAL CONFERENCE ON POWER AND ENERGY SYSTEMS (ICPES) | 2019年

关键词：

Soil Conductivity; Lightning Discharge; Discharge Current; Ionization parameters;

D O I：

10.1109/icpes47639.2019.9105411

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Discharge current distribution generated as a lightning strike traverse from the atmosphere into a soil surface and below with varying conductivity were investigated using a laboratory-size electrode configuration system consisting of a point discharge electrode and nine under-soil grounding electrodes. Discharge emission and the electric potential of the soil were with significant change upon slight variation in soil conductivity across the surface and along with an increase in depth. Non-linear degradation phenomena in the soil conductivity also occur after a subsequent discharge of lightning strike indicating a breakdown of soil properties. The results of a numerical model in COMSOL Multiphysics AC/DC module further shed a graphical illustration of the current pathway validating the experimental data.

引用

页数：6