A Procedure to Infer Lightning Return-Stroke Current Waveform From Far-Field Waveform for the Case of Lossy Ground

被引：0

作者：

Koike, Shunsuke ^{[1
]}

Fukuyama, Masahiro ^{[1
]}

Baba, Yoshihiro ^{[1
]}

Tsuboi, Toshihiro ^{[2
]}

Rakov, Vladimir A. ^{[3
]}

机构：

[1] Doshisha Univ, Kyoto 6100394, Japan

[2] TEPCO Res Inst, Yokohama, Kanagawa 2300002, Japan

[3] Univ Florida, Dept Elect & Comp Engn, Gainesville, FL 32611 USA

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2024年 / 66卷 / 02期

基金：

美国国家科学基金会;

关键词：

Finite-difference time-domain (FDTD) method; lightning; propagation effects; return-stroke current waveform; return-stroke field waveform; return-stroke model;

D O I：

10.1109/TEMC.2023.3325280

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We proposed expressions for reconstructing the waveform of channel-base current from the corresponding far electric field waveform (radiation field component only) on perfectly conducting ground for the modified transmission line models with linear and exponential current decay with height. Waveforms of vertical electric field on lossy ground at far distances (50-200 km) were computed using the finite-difference time-domain (FDTD) method for solving discretized Maxwell's equations in the 2-D cylindrical coordinate system. The FDTD-computed waveforms of vertical electric field on lossy ground were compensated for propagation effects and used in the proposed field-to-current conversion expressions for inferring the channel-base current waveform. The reconstructed currents are in excellent agreement with the current used in computing the fields on lossy ground.

引用

页码：525 / 531

页数：7

共 11 条

[1] On the transmission line model for lightning return stroke representation [J].