DocumentCode :
826491
Title :
Numerical electromagnetic analysis of lightning-induced voltage over ground of finite conductivity
Author :
Pokharel, Ramesh K. ; Ishii, Masaru ; Baba, Yoshihiro
Author_Institution :
Dept. of Electr. Eng., Univ. of Tokyo, Japan
Volume :
45
Issue :
4
fYear :
2003
Firstpage :
651
Lastpage :
656
Abstract :
Numerical Electromagnetics Code (NEC-2), which is a computer code to analyze the three-dimensional electromagnetic (EM) field around thin wires in the frequency domain, has been successfully used in lightning-related studies such as lightning surge analyses or lightning EM pulse calculations over a perfectly conducting ground. NEC-2 is still more useful in investigating lightning-induced effects over ground of finite conductivity. This application of NEC-2 is investigated by comparing calculated results with an experiment over lossy ground. The advantages of the analysis using NEC-2 are that it can accurately compute the current distribution along a wire structure with small amount of postulation. It automatically incorporates coupling between a lightning channel and transmission lines, and it can also take account of finitely conducting ground in transient condition. In addition, it can also model conductors in any arbitrary angles, and it is available in the public domain.
Keywords :
boundary-value problems; computational electromagnetics; electric field integral equations; electromagnetic pulse; frequency-domain analysis; lightning protection; method of moments; power overhead lines; NEC-2 code; boundary value problem; current distribution; electric field integral equation; finite conductivity ground; frequency domain; frequency-domain code; lightning channel; lightning electromagnetic pulse; lightning-induced voltage; lossy ground; method of moments; numerical electromagnetics code; thin wires; three-dimensional electromagnetic field; Conductivity; Distributed computing; EMP radiation effects; Electromagnetic analysis; Electromagnetic fields; Frequency domain analysis; Lightning; Surges; Voltage; Wires;
fLanguage :
English
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9375
Type :
jour
DOI :
10.1109/TEMC.2003.819065
Filename :
1245219
Link To Document :
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