基于SIMULINK的介质阻挡放电的仿真

Simulation of Dielectric Barrier Discharge Using SIMULINK

为了深入地理解DBD的放电机理和优化DBD等离子体反应器的设计,在分析DBD微放电过程和等效电路的基础上,建立了基于SIMULINK的DBD动态仿真模型。为了更真实地反映DBD的放电情况,模型中采用一个电压控制电流源(CCS)来模拟DBD的微放电,同时考虑到了微放电的起止及幅值衰减的影响。用所建立的模型对空气中DBD放电进行仿真,计算得到放电电流、气隙电压和李萨育图形等放电参量。仿真结果及分析表明,放电模型可以用来对DBD进行仿真研究,所得的结果能真实地反映DBD的放电情况。

For better understanding the discharge mechanisms of dielectric barrier discharge and optimizing the design of discharge reactors, based on the analysis of micro-discharges process and equivalent circuit of DBD, a dynamic simulating model for DBD was established using SIMULINK. To reflect the discharge instance of DBD more truly, a voltage-controlled current source was adopt to simulate micro-discharge in DBD, and the influences of the ignition and extinction time and the attenuation of the amplitude of the micro-discharge were also taken into consideration in the model. The established model was used to simulate the DBD in air, and the electrical parameters, such as discharge current, gap voltage and Lissajous diagram etc. were calculated. The simulating results and analysis show that the established model can be used to simulate the DBD, and the results can reflect discharge situation of DBD more truly.