Controlling the number of discharge current pulses in an atmospheric dielectric barrier discharge by voltage waveform tailoring
Source abstract
Abstract
Atmospheric dielectric barrier discharges driven by tailored voltage waveforms are investigated numerically with a one-dimensional fluid model. We use the multi-frequency pulse-type voltage waveform as the control method and the harmonics N as the control parameter to control the number of discharge current pulses. The simulation results show that as N increases from 1 to 11, the number of discharge current pulses in each voltage half cycle (Np) decreases from 5 to 1, representing the transition from the multiple-current-pulse mode to the single-current-pulse (SCP) mode. In this process, both the current amplitude (Jpm) and the gap voltage of the first breakdown moment (Vgb) increase, and the efficiency of the plasma system can be improved by 5.6 times without reducing densities of reactive species. Further analysis reveals that the increase of Jpm is attributed to the variation in discharge current components, and the value of Vgb can be related to Np and the surface charge densities. Finally, an analytical method is proposed to estimate the minimum N to achieve the targeted SCP discharge. The results obtained in this work may contribute to the manipulation of power consumption and discharge stability in industrial applications.
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Research context
OpenAlex topics: Plasma Applications and Diagnostics · Plasma Diagnostics and Applications · Electrohydrodynamics and Fluid Dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Electric Power, South China University of Technology 1 , Guangzhou 510641, China
Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute 2 , Troy, New York 12180, USA
Funding
National Natural Science Foundation of China
References (59)
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