3D FEM analysis of induced current in the shield of the buried cable by non-vertical channel
AF Nematollahi, B Vahidi - Electric Power Systems Research, 2022 - Elsevier
The induced current in the buried cable shield is evaluated by solving the full-wave Maxwell
equations with the Finite Element Method (FEM). Three different cases are considered for …
equations with the Finite Element Method (FEM). Three different cases are considered for …
The effect of the inclined lightning channel on electromagnetic fields and the induced voltages on overhead lines
AF Nematollahi, B Vahidi - Electrical Engineering, 2021 - Springer
In this study, the effect of lightning channel inclination on above-ground lightning
electromagnetic (LEM) fields and their induced voltages on the overhead lines at different …
electromagnetic (LEM) fields and their induced voltages on the overhead lines at different …
Investigating the effect of lightning channel inclination on the induced voltage in overhead lines in the presence of horizontally stratified ground
AF Nematollahi, B Vahidi - Electric Power Systems Research, 2022 - Elsevier
The present paper explores the impact of inclined lightning on the induced voltage on an
overhead line in the presence of two-layer horizontal stratified ground. The Finite Element …
overhead line in the presence of two-layer horizontal stratified ground. The Finite Element …
Analysis the effect of an ocean-land mixed propagation path on the induced voltage in overhead lines due to inclined lightning
AF Nematollahi, B Vahidi - Electric Power Systems Research, 2022 - Elsevier
In this paper, the induced overvoltage of the non-vertical lightning channel on the overhead
line in the presence of ocean-land mixed propagation is investigated. The lightning-induced …
line in the presence of ocean-land mixed propagation is investigated. The lightning-induced …
The propagation effects of lightning electromagnetic fields over mountainous terrain in the earth‐Ionosphere waveguide
In this paper, a full‐wave two‐dimensional Finite‐Difference‐Time‐Domain model is
developed to evaluate the propagation effects of lightning electromagnetic fields over …
developed to evaluate the propagation effects of lightning electromagnetic fields over …
The Indirect-Lightning Performance of Overhead Distribution Line Considering the Mixed Ocean–Land Propagation Path
AF Nematollahi, B Vahidi… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This article investigated the indirect lightning performance of an overhead line versus critical
flashover voltage in the ground with two vertical layers, ocean and land. A novel method …
flashover voltage in the ground with two vertical layers, ocean and land. A novel method …
[PDF][PDF] 时间补偿法在电网雷击事故鉴定中的初步应用
宋琳, 丁锋, 陈佳雯, 孟繁辉, 顾佳颖, 李杰 - 科学技术与工程, 2022 - stae.com.cn
摘要以昆明地区的多山地形为例ꎬ 利用二维时域有限差分算法(two-dimensional finite-
difference time-domainꎬ 2D FDTD) ꎬ 模拟研究了该地区多山地形对雷电多站时差定位精度的 …
difference time-domainꎬ 2D FDTD) ꎬ 模拟研究了该地区多山地形对雷电多站时差定位精度的 …
On the Importance of Considering Realistic Orography Into the Evaluation of Lightning Electromagnetic Fields in Mixed Path
D Mestriner, M Nicora - IEEE Transactions on Electromagnetic …, 2022 - ieeexplore.ieee.org
A lightning event striking the sea could induce several damages to the near infrastructures
located on the coast. The possible damages are connected to the induced voltages caused …
located on the coast. The possible damages are connected to the induced voltages caused …
Evaluation of time history distribution characteristics of lightning electromagnetic field in heterogeneous soil
Y Xiang, P Rao, W Feng, P Ouyang - Acta Geophysica, 2024 - Springer
Existing underground lightning electromagnetic field predictive methods are only relevant to
conductivity distributions that are homogeneous or layered. In order to expand the scope of …
conductivity distributions that are homogeneous or layered. In order to expand the scope of …
Impact of ocean-land mixed propagation path on equivalent circuit of grounding rods
SR Ostadzadeh, S Mehrabi - Journal of Communication …, 2019 - journals.shahed.ac.ir
In this paper, the effect of ocean-land mixed propagation path on the lightning performance
of grounding rods is investigated. This effect is focused on two problems. The first is …
of grounding rods is investigated. This effect is focused on two problems. The first is …