To main content

Simulation model for the propagation of second mode streamers in dielectric liquids using the Townsend-Meek criterion

Abstract

A simulation model for second mode positive streamers in dielectric liquids is presented. Initiation and propagation is modeled by an electron-avalanche mechanism and the Townsend–Meek criterion. The electric breakdown is simulated in a point-plane gap, using cyclohexane as a model liquid. Electrons move in a Laplacian electric field arising from the electrodes and streamer structure, and turn into electron avalanches in high-field regions. The Townsend–Meek criterion determines when an avalanche is regarded as a part of the streamer structure. The results show that an avalanche-driven breakdown is possible, however, the inception voltage is relatively high. Parameter variations are included to investigate how the parameter values affect the model.
Read the publication

Category

Academic article

Language

English

Author(s)

  • Inge Madshaven
  • Per-Olof Åstrand
  • Øystein Leif Gurandsrud Hestad
  • Stian Ingebrigtsen
  • Mikael Unge
  • Olof Hjortstam

Affiliation

  • SINTEF Energy Research / Elkraftteknologi
  • Sweden
  • Norwegian University of Science and Technology
  • ABB AS

Year

2018

Published in

Journal of Physics Communications

Volume

2

View this publication at Norwegian Research Information Repository