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Suppression of Plasma Instabilities in the Plasma of a Three-Electrode Current and Voltage Stabilizer

  • PLASMA INVESTIGATIONS
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High Temperature Aims and scope

Abstract

The conditions for the excitation of current and voltage oscillations in the plasma of a three-electrode current and voltage stabilizer have been experimentally studied. It was found that the oscillations are due to negative conductivity of the plasma in the considered regimes. A highly efficient method is proposed for the suppression of plasma instabilities based on the control of the sign of differential plasma conductivity via adjustment of the concentration of thermal plasma electrons with an external electrode. The proposed method makes it possible to achieve a high level of stability of the stabilizer’s energy characteristics at a discharge current density of up to 5 A/cm2 and a power of 500 W/cm2.

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ACKNOWLEDGMENTS

The authors are grateful to Prof. Yu.A. Lebedev for his valuable comments and constant attention to the work.

Funding

This work is supported by the Russian Science Foundation (RSF), the grant № 21-19-00139.

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Authors and Affiliations

  1. St. Petersburg Mining University, St. Petersburg, Russia

    A. S. Mustafaev & A. Y. Grabovskiy

  2. St. Petersburg State University, St. Petersburg, Russia

    V. S. Sukhomlinov

Authors
  1. A. S. Mustafaev
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  2. A. Y. Grabovskiy
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  3. V. S. Sukhomlinov
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Corresponding author

Correspondence to A. Y. Grabovskiy.

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Mustafaev, A.S., Grabovskiy, A.Y. & Sukhomlinov, V.S. Suppression of Plasma Instabilities in the Plasma of a Three-Electrode Current and Voltage Stabilizer. High Temp 59, 155–161 (2021). https://doi.org/10.1134/S0018151X21030081

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  • DOI: https://doi.org/10.1134/S0018151X21030081

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