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Simulation of partial discharge activity in solid dielectrics under AC voltage

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Abstract

A model describing the main stochastic properties of partial discharges (PDs) under alternating-current (ac) voltage is proposed. PDs corresponding to microdischarges in small voids randomly distributed in a solid insulator are considered. The PD initiation is simulated using a stochastic criterion. The decay of plasma in a void and the resulting drop in the conductivity until complete vanishing are described using a simple threshold criterion. Computer simulations show that, upon the application of ac voltage to the electrodes, short current pulses are observed in the external circuit, with each peak corresponding to a microdischarge (PD) in the void.

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Authors and Affiliations

  1. Lavrentyev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, Novosibirsk, Russia

    A. L. Kupershtokh

  2. University of Patras, GR 26500, Rion, Greece

    C. P. Stamatelatos & D. P. Agoris

Authors
  1. A. L. Kupershtokh
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  2. C. P. Stamatelatos
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  3. D. P. Agoris
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Original Russian Text © A.L. Kupershtokh, C.P. Stamatelatos, D.P. Agoris, 2006, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2006, Vol. 32, No. 15, pp. 74–81.

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Kupershtokh, A.L., Stamatelatos, C.P. & Agoris, D.P. Simulation of partial discharge activity in solid dielectrics under AC voltage. Tech. Phys. Lett. 32, 680–683 (2006). https://doi.org/10.1134/S106378500608013X

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  • DOI: https://doi.org/10.1134/S106378500608013X

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