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Indexed by:期刊论文

Date of Publication:2017-06-01

Journal:National Conference on High Voltage and Discharge Plasmas (HVDP)

Included Journals:SCIE、CPCI-S

Volume:19

Issue:6,SI

ISSN No.:1009-0630

Key Words:atmospheric pressure plasma discharge; voltage rising time; numerical simulation

Abstract:In this paper, the influence of voltage rising time on a pulsed-dc helium-air plasma at atmospheric pressure is numerically simulated. Simulation results show that as the voltage rising time increases from 10 ns to 30 ns, there is a decrease in the discharge current, namely 0.052 A when the. voltage rising time is 10 ns and 0.038 A when the. voltage rising time is 30 ns. Additionally, a shorter voltage rising time results in a faster breakdown, a more rapidly rising current waveform, and a higher breakdown voltage. Furthermore, the. basic parameters of the. streamer discharge also increase with voltage rise rate, which is. ascribed to the fact that more energetic electrons are produced in a shorter voltage rising time. Therefore, a pulsed-dc voltage with a. short rising time is desirable for efficient production of nonequilibrium atmospheric pressure plasma discharge.