Calculation of Electromagnetic Fields in the Vicinity of the Lightning Channel

Author

Ping Wang ; Lin Li

Author_Institution

State Key Lab. of Alternate Electr. Power Syst. with Renewable Energy Sources, North China Electr. Power Univ., Beijing, China

Volume

51

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

1

Lastpage

4

Abstract

The electric and magnetic fields in the vicinity of the lightning channel were measured in 2004 at the International Center for Lightning Research and Testing. In this paper, a numerical lightning channel model is presented based on the physical mechanism of lightning development. The calculation of electric and magnetic fields is divided into three stages. Before the lightning leader arrives to ground, the field is induced by the charges in the thundercloud and lightning leader. During the return stroke, the field is induced by the return stroke current and the remainder charges in lightning channel and thundercloud. After the return stroke, the field is induced by the remainder thundercloud charges. The electric and magnetic fields are calculated by means of the image method and calculated fields are compared with those measured.

Keywords

clouds; lightning; AD 2004; electric fields; electromagnetic fields; image method; international center-for-lightning research-and-testing; lightning development; lightning leader; magnetic fields; numerical lightning channel model; physical mechanism; return stroke; thundercloud charges; Ash; Channel models; Current measurement; Ions; Lightning; Magnetic resonance imaging; Electric field; lightning leader; magnetic field; return stroke;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2356648

Filename

7093626