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On the transition from positive glow corona to streamers in air
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0001-5378-701X
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0002-6375-6142
2014 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

The transition phase from glow to streamer corona is of significant importance for the evaluation of leader discharges initiated from ultra-high voltage power transmission lines under thunderstorms. In order to study the condition required for streamer inception from a glow-corona generating wire, the continuity equations for electrons, positive ions and negative ions coupled with Poisson’s equation are solved. The calculations are performed for a wire-cylinder coaxial configuration in one dimension. The analysis is performed by considering the generation of glow corona under a DC electric field, followed by the transition to a streamer-like ionization wave under a fastchanging electric field ramp. Thus, the critical rate of rise of the applied voltage on the wire surface required for streamer-like structures to initiate in the presence of a stable glow corona is evaluated for different radii and DC voltages.

Place, publisher, year, edition, pages
2014.
Keyword [en]
transition, glow corona, streamers
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-166290OAI: oai:DiVA.org:kth-166290DiVA: diva2:810445
Conference
20th International Conference on Gas Discharges and their Applications
Funder
StandUp
Note

QC 20150623

Available from: 2015-05-07 Created: 2015-05-07 Last updated: 2015-06-23Bibliographically approved

Open Access in DiVA

No full text

Other links

http://gd2014.sciencesconf.org/27241

Authority records BETA

Liu, LipengBecerra, Marley

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