Modelling and Simulation of a DBD Plasma Discharge Supplied by a Multicell Inverter

A.A. Flores-Fuentes, R. Peña-Eguiluz, R. López-Callejas, A. Mercado-Cabrera, R. Valencia-Alvarado, S.R. Barocio, O.G. Godoy-Cabrera, A. de la Piedad-Beneitez, J.S. Benítez-Read, and J.O. Pacheco-Sotelo (Mexico)


Modelling, dielectric barrier discharge, simulation, multicell converter.


An electrical model of a Dielectric Barrier Discharge (DBD) is reported in which a reactor and its power source are independently simulated for the sake of simplicity. Then the interaction of both models is studied on a Matlab® Simulink code. The reactor is envisaged as two parallel plates whose gap is partially filled with a dielectric sheet. The DBD plasma is modelled as a voltage controlled current-source that is switched on when the voltage across the gap exceeds the breakdown voltage. A three cell voltage-source inverter configured in half bridge has been used as a power supply. This configuration has an excellent performance operating in open-loop. This advantageous distribution of total energy between a larger numbers of low power converters enables a more powerful drive. The phenomenological characteristic of the charge-voltage behaviour of DBDs is described by power laws with different voltage dependent exponent values. The shape of the present modelled discharge current waveform depends on such an exponent value.

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