The investigation of dielectric barrier impact on the breakdown voltage in high voltage systems by modeling and simulation

Elham Foruzan, Hamid Vakilzadian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

Nonpressurized air is used extensively as a basic insulation medium in medium/high voltage equipment. An inherent problem of air-insulated designs is that the systems tend to become physically large. Application of dielectric barriers can increase the breakdown voltage and thereby decrease the size of the equipment. In this paper, the impact of polytetrafluoroethylene (PTFE) and polyvinyl chloride (PVC) as dielectric barriers on breakdown voltage for DC and AC voltages were investigated by developing two geometric models. In the first model, it was assumed that a U-shaped electrode was covered with PVC dielectric. In the second model, it was assumed that PTFE dielectric was inserted in the air gap between electrodes. Both models were simulated using COMSOL Multiphysics software. The simulation results were verified by experimentation in the lab. The results show that a layer of PTFE and PVC dielectrics behaved as a mechanical obstacle, and they increased the voltage breakdown channel. In addition, the residual charges over the barrier changed the electric field distribution, resulting in a significant increase in the breakdown voltage.

Original languageEnglish (US)
Title of host publication2015 IEEE Power and Energy Society General Meeting, PESGM 2015
PublisherIEEE Computer Society
ISBN (Electronic)9781467380409
DOIs
StatePublished - Sep 30 2015
EventIEEE Power and Energy Society General Meeting, PESGM 2015 - Denver, United States
Duration: Jul 26 2015Jul 30 2015

Publication series

NameIEEE Power and Energy Society General Meeting
Volume2015-September
ISSN (Print)1944-9925
ISSN (Electronic)1944-9933

Other

OtherIEEE Power and Energy Society General Meeting, PESGM 2015
CountryUnited States
CityDenver
Period7/26/157/30/15

Keywords

  • Breakdown Voltage
  • Dielectric Barrier
  • High Voltage Systems
  • Modeling and Simulation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering

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    Foruzan, E., & Vakilzadian, H. (2015). The investigation of dielectric barrier impact on the breakdown voltage in high voltage systems by modeling and simulation. In 2015 IEEE Power and Energy Society General Meeting, PESGM 2015 [7285653] (IEEE Power and Energy Society General Meeting; Vol. 2015-September). IEEE Computer Society. https://doi.org/10.1109/PESGM.2015.7285653