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

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-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 languageEnglish
Title of host publication2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010
Pages1526-1529
Number of pages4
DOIs
Publication statusPublished - 2 Aug 2010
Event2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010 - Beijing, China
Duration: 12 Apr 201016 Apr 2010

Conference

Conference2010 Asia-Pacific Symposium on Electromagnetic Compatibility, APEMC 2010
CountryChina
CityBeijing
Period12/04/1016/04/10

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this