CLC number: U228.1
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2011-06-24
Cited: 1
Clicked: 5214
Yong-jian Zhi, Bin Zhang, Kai Li, Xiao-yan Huang, You-tong Fang, Wen-ping Cao. Electromagnetic environment around a high-speed railway using analytical technique[J]. Journal of Zhejiang University Science A, 2011, 12(12): 950-956.
@article{title="Electromagnetic environment around a high-speed railway using analytical technique",
author="Yong-jian Zhi, Bin Zhang, Kai Li, Xiao-yan Huang, You-tong Fang, Wen-ping Cao",
journal="Journal of Zhejiang University Science A",
volume="12",
number="12",
pages="950-956",
year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A11GT004"
}
%0 Journal Article
%T Electromagnetic environment around a high-speed railway using analytical technique
%A Yong-jian Zhi
%A Bin Zhang
%A Kai Li
%A Xiao-yan Huang
%A You-tong Fang
%A Wen-ping Cao
%J Journal of Zhejiang University SCIENCE A
%V 12
%N 12
%P 950-956
%@ 1673-565X
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A11GT004
TY - JOUR
T1 - Electromagnetic environment around a high-speed railway using analytical technique
A1 - Yong-jian Zhi
A1 - Bin Zhang
A1 - Kai Li
A1 - Xiao-yan Huang
A1 - You-tong Fang
A1 - Wen-ping Cao
J0 - Journal of Zhejiang University Science A
VL - 12
IS - 12
SP - 950
EP - 956
%@ 1673-565X
Y1 - 2011
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A11GT004
Abstract: A switched-mode unit used in electric locomotive generates a strong high frequency conducted electromagnetic interference (EMI), which radiates electromagnetic energy through railway lines. Evaluation of magnetic field using analytical technique based on contour integral is presented, in order to assess the electromagnetic environment around a high-speed railway. Actual railway multiconductor finitely long overhead lines are represented by an infinitely long single line above two-layered earth, whose characteristic is different from homogeneous earth. Owing to the constraint of the GB/T 24338-2009 and the high frequency investigated (a few MHz), only the magnetic fields are examined. The magnetic fields consist of four components: the direct wave, the ideal reflected wave or image wave, the trapped surface wave, and the lateral wave. The calculation results proved that due to the presence of the trapped surface wave, the magnetic field of the observer point on the interface is strongly influenced, when the line is on or closed to the interface.
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