Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Modeling of streamers in transformer oil using OpenFOAM

Modeling of streamers in transformer oil using OpenFOAM Purpose – A model for streamers based on charge transport has been developed by MIT and ABB. The purpose of this paper is to investigate the consequences of changing numerical method from the finite element method (FEM) to the finite volume method (FVM) for simulations using the streamer model. The new solver is also used to extend the simulations to 3D. Design/methodology/approach – The equations from the MIT‐ABB streamer model are implemented in OpenFOAM which uses the FVM. Checks of the results are performed including verification of convergence. The solver is then applied to some of the key simulations from the FEM model and results presented. Findings – The results for second mode streamers are confirmed, whereas the results for third mode streamers differ significantly leading to questioning of one hypothesis proposed based on the FEM results. The 3D simulations give consistent results and show a way forward for future simulations. Originality/value – The FVM has not been applied to the model before and led to more confidence in second mode result and revising of third mode results. In addition the new simulation method makes it possible to extend the results to 3D. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering Emerald Publishing

Modeling of streamers in transformer oil using OpenFOAM

Download PDF
10 pages

Loading next page...
 
/lp/emerald-publishing/modeling-of-streamers-in-transformer-oil-using-openfoam-sUPBlHtcg0
Publisher
Emerald Publishing
Copyright
Copyright © 2014 Emerald Group Publishing Limited. All rights reserved.
ISSN
0332-1649
DOI
10.1108/COMPEL-12-2012-0361
Publisher site
See Article on Publisher Site

Abstract

Purpose – A model for streamers based on charge transport has been developed by MIT and ABB. The purpose of this paper is to investigate the consequences of changing numerical method from the finite element method (FEM) to the finite volume method (FVM) for simulations using the streamer model. The new solver is also used to extend the simulations to 3D. Design/methodology/approach – The equations from the MIT‐ABB streamer model are implemented in OpenFOAM which uses the FVM. Checks of the results are performed including verification of convergence. The solver is then applied to some of the key simulations from the FEM model and results presented. Findings – The results for second mode streamers are confirmed, whereas the results for third mode streamers differ significantly leading to questioning of one hypothesis proposed based on the FEM results. The 3D simulations give consistent results and show a way forward for future simulations. Originality/value – The FVM has not been applied to the model before and led to more confidence in second mode result and revising of third mode results. In addition the new simulation method makes it possible to extend the results to 3D.

Journal

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering – Emerald Publishing

Published: Jul 1, 2014

Keywords: Finite volume method; Dielectric breakdown; OpenFOAM; Streamers; Transformer oil

References

  • Modeling and OpenFOAM simulation of streamers in transformer oil
    Fors, J.
  • Elucidating the mechanisms behind pre‐breakdown phenomena in transformer oil systems
    Hwang, J.G.
  • Modeling streamers in transformer oil: the transitional fast 3rd mode streamer
    Hwang, J.G.; Zahn, M.; Pettersson, L.A.A.; Hjortstam, O.; Rongsheng, L.
  • Methods for the determination of the lightning impulse breakdown voltage of insulating liquids
    IEC Standard
  • Effects of impulse voltage polarity, peak amplitude, and rise time on streamers initiated from a needle electrode in transformer oil
    Jadidian, J.; Zahn, M.; Lavesson, N.; Widlund, O.; Borg, K.
  • OpenFOAM: a C++ library for complex physics simulations
    Jasak, H.; Jemcov, A.; Tuković, Z.
  • Positive streamer propagation in large oil gaps: experimental characterization of propagation modes
    Lesaint, O.; Massala, G.
  • Fast streamer propagation in transformer oil and ester liquids
    Liu, R.; Törnkvist, C.; Chandramouli, V.; Girlanda, O.; Pettersson, L.A.A.
  • A model for the initiation and propagation of electrical streamers in transformer oil and transformer oil based nanofluids
    O'Sullivan, F.
  • An Introduction to Computational Fluid Dynamics: The finite Volume Method
    Versteeg, H.K.; Malalasekera, W.