A new method for the calculation of the linear charge density and current in upward positive leader

Dong Zheng; Mingli Chen; Yijun Zhang; Weitao Lu

doi:10.1109/APEMC.2010.5475547

A new method for the calculation of the linear charge density and current in upward positive leader

Dong Zheng, Mingli Chen, Yijun Zhang, Weitao Lu

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

1 Citation (Scopus)

Abstract

A new method for the calculation of the linear charge density (LCD) and current in upward positive leader (UPL) is put forward in this study. It is tested in three classical artificially triggered lightning discharges. The current calculated based on the charge density and the velocity of the leader are compared with the measured current, relative brightness of the leader channel in the frame of high-speed camera and some current waveforms reported by other authors. The results indicate that before the disintegration of the wire, LCDs in UPLs are of magnitude from several to hundreds of micro-coulombs per meter and the distribution of LCD was strongly skewed toward the UPL tips. Additionally, the calculated current in the UPLs are of magnitude from less than one to tens of amperes and increase with the leader propagating. The method is believed to be reliable through the analysis and compare.

Original language	English
Title of host publication	2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010
Pages	1526-1529
Number of pages	4
DOIs	https://doi.org/10.1109/APEMC.2010.5475547
Publication status	Published - 2 Aug 2010
Event	2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010 - Beijing, China Duration: 12 Apr 2010 → 16 Apr 2010

Conference

Conference	2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010
Country/Territory	China
City	Beijing
Period	12/04/10 → 16/04/10

ASJC Scopus subject areas

Electrical and Electronic Engineering

More information

10.1109/APEMC.2010.5475547

Cite this

@inproceedings{4415e16d76a4401fae84a85e1dd64e2c,

title = "A new method for the calculation of the linear charge density and current in upward positive leader",

abstract = "A new method for the calculation of the linear charge density (LCD) and current in upward positive leader (UPL) is put forward in this study. It is tested in three classical artificially triggered lightning discharges. The current calculated based on the charge density and the velocity of the leader are compared with the measured current, relative brightness of the leader channel in the frame of high-speed camera and some current waveforms reported by other authors. The results indicate that before the disintegration of the wire, LCDs in UPLs are of magnitude from several to hundreds of micro-coulombs per meter and the distribution of LCD was strongly skewed toward the UPL tips. Additionally, the calculated current in the UPLs are of magnitude from less than one to tens of amperes and increase with the leader propagating. The method is believed to be reliable through the analysis and compare.",

author = "Dong Zheng and Mingli Chen and Yijun Zhang and Weitao Lu",

year = "2010",

month = aug,

day = "2",

doi = "10.1109/APEMC.2010.5475547",

language = "English",

isbn = "9781424456215",

pages = "1526--1529",

booktitle = "2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010",

note = "2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010 ; Conference date: 12-04-2010 Through 16-04-2010",

}

Zheng, D, Chen, M, Zhang, Y & Lu, W 2010, A new method for the calculation of the linear charge density and current in upward positive leader. in 2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010., 5475547, pp. 1526-1529, 2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010, Beijing, China, 12/04/10. https://doi.org/10.1109/APEMC.2010.5475547

A new method for the calculation of the linear charge density and current in upward positive leader. / Zheng, Dong; Chen, Mingli; Zhang, Yijun et al.
2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010. 2010. p. 1526-1529 5475547.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - A new method for the calculation of the linear charge density and current in upward positive leader

AU - Zheng, Dong

AU - Chen, Mingli

AU - Zhang, Yijun

AU - Lu, Weitao

PY - 2010/8/2

Y1 - 2010/8/2

N2 - A new method for the calculation of the linear charge density (LCD) and current in upward positive leader (UPL) is put forward in this study. It is tested in three classical artificially triggered lightning discharges. The current calculated based on the charge density and the velocity of the leader are compared with the measured current, relative brightness of the leader channel in the frame of high-speed camera and some current waveforms reported by other authors. The results indicate that before the disintegration of the wire, LCDs in UPLs are of magnitude from several to hundreds of micro-coulombs per meter and the distribution of LCD was strongly skewed toward the UPL tips. Additionally, the calculated current in the UPLs are of magnitude from less than one to tens of amperes and increase with the leader propagating. The method is believed to be reliable through the analysis and compare.

AB - A new method for the calculation of the linear charge density (LCD) and current in upward positive leader (UPL) is put forward in this study. It is tested in three classical artificially triggered lightning discharges. The current calculated based on the charge density and the velocity of the leader are compared with the measured current, relative brightness of the leader channel in the frame of high-speed camera and some current waveforms reported by other authors. The results indicate that before the disintegration of the wire, LCDs in UPLs are of magnitude from several to hundreds of micro-coulombs per meter and the distribution of LCD was strongly skewed toward the UPL tips. Additionally, the calculated current in the UPLs are of magnitude from less than one to tens of amperes and increase with the leader propagating. The method is believed to be reliable through the analysis and compare.

UR - http://www.scopus.com/inward/record.url?scp=77955005144&partnerID=8YFLogxK

U2 - 10.1109/APEMC.2010.5475547

DO - 10.1109/APEMC.2010.5475547

M3 - Conference article published in proceeding or book

SN - 9781424456215

SP - 1526

EP - 1529

BT - 2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010

T2 - 2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010

Y2 - 12 April 2010 through 16 April 2010

ER -

A new method for the calculation of the linear charge density and current in upward positive leader

Abstract

Conference

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this