Electromagnetic analysis for lightning propagation in lossy soil by using FDTD

Author

Tang, Tao ; Sun, Xiu-bin ; Liu, Kun ; Guo, Zai-hua ; Chen, Dingjun

Author_Institution

Electron. Eng. Coll., Chengdu Univ. of Inf. Technol., Chengdu, China

fYear

2011

fDate

1-4 Nov. 2011

Firstpage

65

Lastpage

68

Abstract

When the lightning electromagnetic pulse (LEMP) injected into the loss soil by earth electrodes, due to the strong electric field carried by the lightning, the soil ionization may occur. The ionization phenomena will not only affect the distribution of the LEMP, but also affect the soil properties, such as conductivity. Based on finite difference time domain (FDTD) method, the non linear effects of soil ionization under different parameters of LEMP and the soil properties is investigated. Results show the distribution and attenuation of LEMP. The evolution of the soil properties is discussed also.

Keywords

earth electrodes; electromagnetic pulse; electromagnetic wave propagation; finite difference time-domain analysis; ionisation; lightning protection; soil; FDTD; LEMP distribution; earth electrodes; electric field; electromagnetic analysis; finite difference time domain method; lightning electromagnetic pulse; lightning propagation; lossy soil; nonlinear effects; soil ionization phenomena; soil property; Conductivity; Finite difference methods; Grounding; Ionization; Lightning; Soil; Time domain analysis; FDTD; LEMP; Lossy Soil; propagation;

fLanguage

English

Publisher

ieee

Conference_Titel

Lightning (APL), 2011 7th Asia-Pacific International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4577-1467-2

Type

conf

DOI

10.1109/APL.2011.6111075

Filename

6111075