Abstract The model establishment for jet discharge and its simulation analysis are of great interesting for studying the discharge characteristics as well as for optimizing the design of jet discharge plasma reactors in real applications. In this paper, the experimental system with the ring-ring electrode structure for atmospheric pressure plasma jet discharge is established, and the discharge characteristics are studied, by measuring voltage and current waveforms, Lissajous figures and lighting emission images. Based on the experimental results and discharge characteristics analysis, an equivalent electrical model for ring-ring electrode structure jet discharge is established, which can reflect the discharge. The discharge space between two electrodes is equivalent to a DBD discharge model, and the jet outside the tube is equivalent to variable impedance. The influence of spillover effect is also taken into account, and it is modeled as variable impedance. Based on the equivalent electrical model, an equivalent circuit diagram is deduced, and a dynamic simulation model is established in Simulink software. Voltage and current waveforms, and Lissajous figures can be well coherence with the experimental results, which verify the proposed electrical model. The influences of the power supply frequency and ring-ring distance on the electrical characteristics and discharge parameters are also studied. Results show that the discharge power and transported charges both increase nonlinearly as the applied frequency increases, while both decrease as the ring-ring distance increases. The dynamic behaviors of discharge parameters that can not measured directly during the experiment, such as dielectric voltage, gas gap voltage and discharge current, are also obtained by the established model.
Fang Zhi,Qian Chen,Yao Zhengqiu. The Model and Simulation Studies for Ring-Ring Electrode Structure Jet Discharge at Atmospheric Pressure[J]. Transactions of China Electrotechnical Society, 2016, 31(4): 218-228.
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2016, Vol. 31 
