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GLIDARC reactor power supply with ignition improvement

Piotr Krupski (Institute of Electrical Engineering and Electrotechnologies, Politechnika Lubelska, Lublin, Poland)
Henryka Danuta Stryczewska (Faculty of Electrical Engineering and Computer Science, Politechnika Lubelska, Lublin, Poland)

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering

ISSN: 0332-1649

Article publication date: 25 June 2019

Issue publication date: 14 August 2019

Abstract

Purpose

The research purpose of this paper is to confirm that internal overvoltages in the push–pull power inverter can be used to improve the discharge ignition in the gliding arc discharge (GAD) plasma reactor.

Design/methodology/approach

Investigations are based on the acquisition of voltage changes that occur together with the development of the discharge column and the imaging the GAD with the use of a high-speed camera.

Findings

The power supply has the distinctive feature of not having the switching overvoltages completely extinguished, as it is in typical push–pull inverters. The overvoltages still exist but only dangerous peaks are cut off. The remaining ones, of a dumped resonance character (Figure 3), are transferred to the secondary coil of the transformer. Correctly shaped overvoltages are used for ignition improvement in the GAD reactor.

Practical implications

GAD plasma reactors have many applications for pollution control, disinfection and sterilization of surfaces and for plasma deposition, surface functionalization, as well as in agricultural and medical treatment. Investigations prove the push–pull inverter’s advantages in comparison with the transformer-type power supply. Properly configured push–pull inverters have good ignition properties and control options, allowing to generate, desirable for many applications, homogeneous non-thermal plasma.

Originality/value

The idea of using switching overvoltages in transistors of push–pull switching-mode power supplies is new and has not been previously used to improve discharges ignition in a non-thermal plasma reactor.

Keywords

Citation

Krupski, P. and Stryczewska, H.D. (2019), "GLIDARC reactor power supply with ignition improvement", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 38 No. 4, pp. 1274-1284. https://doi.org/10.1108/COMPEL-12-2018-0540

Publisher

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Emerald Publishing Limited

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