Calculation of Lightning-Induced Voltages on Overhead Lines from Oblique Return Stroke Channel above Stratified Lossy Ground in Time Domain

Xiaojia WANG; Yazhou CHEN; Haojiang WAN; Qingxi YANG

doi:10.1587/transcom.2016EBP3423

IEICE TRANSACTIONS on Communications

Calculation of Lightning-Induced Voltages on Overhead Lines from Oblique Return Stroke Channel above Stratified Lossy Ground in Time Domain

Xiaojia WANG, Yazhou CHEN, Haojiang WAN, Qingxi YANG

Full Text Views

0

Cite this

Summary :

In this paper, the effect of the tilt angle of return stroke channel and the stratified lossy ground on the lightning-induced voltages on the overhead lines are studied using the modified transmission-line model with linear current decay with height (MTLL). The results show that the lightning-induced voltages from oblique discharge channel are larger than those from the vertical discharge channel, and the peak values of the induced voltages will increase with increasing the tilt angle. When the ground is horizontally stratified, the peak of the induced voltages will increase with increasing the conductivity of the lower layer at different distances. When the upper ground conductivity increases, the voltage peak values will decrease if the overhead line is nearby the lightning strike point and increase if the overhead line is far from the lightning strike point. Moreover, the induced voltages are mainly affected by the conductivity of the lower layer soil when the conductivity of the upper layer ground is smaller than that of the lower layer ground at far distances. When the ground is vertically stratified, the induced voltages are mainly affected by the conductivity of the ground near the strike point when the overhead line and the strike point are located above the same medium; if the overhead line and the strike point are located above different mediums, both of the conductivities of the vertically stratified ground will influence the peak of the induced voltages and the conductivity of the ground which is far from the strike point has much more impact on induced voltages.

Publication: IEICE TRANSACTIONS on Communications Vol.E100-B No.8 pp.1454-1461

Publication Date: 2017/08/01

Publicized: 2017/02/17

Online ISSN: 1745-1345

DOI: 10.1587/transcom.2016EBP3423

Type of Manuscript: PAPER

Category: Electromagnetic Compatibility(EMC)

Authors

Xiaojia WANG
  Shijiazhuang Mechanical Engineering College
Yazhou CHEN
  Shijiazhuang Mechanical Engineering College
Haojiang WAN
  Shijiazhuang Mechanical Engineering College
Qingxi YANG
  Shijiazhuang Mechanical Engineering College

Keyword

lightning, return-stroke electromagnetic field, 3-D FDTD method, oblique discharge channel, pulse function

Cite this

Copy

Xiaojia WANG, Yazhou CHEN, Haojiang WAN, Qingxi YANG, "Calculation of Lightning-Induced Voltages on Overhead Lines from Oblique Return Stroke Channel above Stratified Lossy Ground in Time Domain" in IEICE TRANSACTIONS on Communications, vol. E100-B, no. 8, pp. 1454-1461, August 2017, doi: 10.1587/transcom.2016EBP3423.
Abstract: In this paper, the effect of the tilt angle of return stroke channel and the stratified lossy ground on the lightning-induced voltages on the overhead lines are studied using the modified transmission-line model with linear current decay with height (MTLL). The results show that the lightning-induced voltages from oblique discharge channel are larger than those from the vertical discharge channel, and the peak values of the induced voltages will increase with increasing the tilt angle. When the ground is horizontally stratified, the peak of the induced voltages will increase with increasing the conductivity of the lower layer at different distances. When the upper ground conductivity increases, the voltage peak values will decrease if the overhead line is nearby the lightning strike point and increase if the overhead line is far from the lightning strike point. Moreover, the induced voltages are mainly affected by the conductivity of the lower layer soil when the conductivity of the upper layer ground is smaller than that of the lower layer ground at far distances. When the ground is vertically stratified, the induced voltages are mainly affected by the conductivity of the ground near the strike point when the overhead line and the strike point are located above the same medium; if the overhead line and the strike point are located above different mediums, both of the conductivities of the vertically stratified ground will influence the peak of the induced voltages and the conductivity of the ground which is far from the strike point has much more impact on induced voltages.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2016EBP3423/_p

Copy

@ARTICLE{e100-b_8_1454,
author={Xiaojia WANG, Yazhou CHEN, Haojiang WAN, Qingxi YANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Calculation of Lightning-Induced Voltages on Overhead Lines from Oblique Return Stroke Channel above Stratified Lossy Ground in Time Domain},
year={2017},
volume={E100-B},
number={8},
pages={1454-1461},
abstract={In this paper, the effect of the tilt angle of return stroke channel and the stratified lossy ground on the lightning-induced voltages on the overhead lines are studied using the modified transmission-line model with linear current decay with height (MTLL). The results show that the lightning-induced voltages from oblique discharge channel are larger than those from the vertical discharge channel, and the peak values of the induced voltages will increase with increasing the tilt angle. When the ground is horizontally stratified, the peak of the induced voltages will increase with increasing the conductivity of the lower layer at different distances. When the upper ground conductivity increases, the voltage peak values will decrease if the overhead line is nearby the lightning strike point and increase if the overhead line is far from the lightning strike point. Moreover, the induced voltages are mainly affected by the conductivity of the lower layer soil when the conductivity of the upper layer ground is smaller than that of the lower layer ground at far distances. When the ground is vertically stratified, the induced voltages are mainly affected by the conductivity of the ground near the strike point when the overhead line and the strike point are located above the same medium; if the overhead line and the strike point are located above different mediums, both of the conductivities of the vertically stratified ground will influence the peak of the induced voltages and the conductivity of the ground which is far from the strike point has much more impact on induced voltages.},
keywords={},
doi={10.1587/transcom.2016EBP3423},
ISSN={1745-1345},
month={August},}

Copy

TY - JOUR
TI - Calculation of Lightning-Induced Voltages on Overhead Lines from Oblique Return Stroke Channel above Stratified Lossy Ground in Time Domain
T2 - IEICE TRANSACTIONS on Communications
SP - 1454
EP - 1461
AU - Xiaojia WANG
AU - Yazhou CHEN
AU - Haojiang WAN
AU - Qingxi YANG
PY - 2017
DO - 10.1587/transcom.2016EBP3423
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E100-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2017
AB - In this paper, the effect of the tilt angle of return stroke channel and the stratified lossy ground on the lightning-induced voltages on the overhead lines are studied using the modified transmission-line model with linear current decay with height (MTLL). The results show that the lightning-induced voltages from oblique discharge channel are larger than those from the vertical discharge channel, and the peak values of the induced voltages will increase with increasing the tilt angle. When the ground is horizontally stratified, the peak of the induced voltages will increase with increasing the conductivity of the lower layer at different distances. When the upper ground conductivity increases, the voltage peak values will decrease if the overhead line is nearby the lightning strike point and increase if the overhead line is far from the lightning strike point. Moreover, the induced voltages are mainly affected by the conductivity of the lower layer soil when the conductivity of the upper layer ground is smaller than that of the lower layer ground at far distances. When the ground is vertically stratified, the induced voltages are mainly affected by the conductivity of the ground near the strike point when the overhead line and the strike point are located above the same medium; if the overhead line and the strike point are located above different mediums, both of the conductivities of the vertically stratified ground will influence the peak of the induced voltages and the conductivity of the ground which is far from the strike point has much more impact on induced voltages.
ER -

IEICE TRANSACTIONS on Communications