脉冲激励下介质阻挡放电负载的特性研究  

Research on Characteristics of Dielectric Barrier Discharge Load Under Pulse Excitation

作　　者：方文睿 唐雄民[1] 江天鸿 李仲涛 FANG Wenrui;TANG Xiongmin;JIANG Tianhong;LI Zhongtao(Faculty of Automation,Guangdong University of Technology,Guangdong 510006,China)

机构地区：[1]广东工业大学自动化学院,广州510006

出　　处：《高压电器》2024年第5期171-178,188,共9页High Voltage Apparatus

基　　金：国家自然科学基金青年基金资助项目(51207026)。

摘　　要：脉冲激励能大幅度提升介质阻挡放电(dielectric barrier discharge,DBD)负载的放电效率。针对传统的实验研究由于受到实验环境和材料等的限制,无法对脉冲激励下介质阻挡放电的放电特性进行更细致的研究的现状。文中以电压型脉冲激励下填充气体为氩气(Ar)的DBD型负载为研究对象,通过构建DBD负载的一维流体模型对该模型的放电曲线以及在不同脉冲参数和介质层参数的条件下DBD的放电特性进行研究。结果表明:DBD负载在一个周期内产生两次极性相反的放电,第一次放电强度比第二次放电强度要高。此外,通过对放电过程的电气量的时空特征研究得出,可以通过提高脉冲电压的幅值、缩短脉冲升降沿时间、选择相对介电常数高的材料以及减少介质层厚度的方法来提高DBD负载的性能。Pulse excitation can greatly improve the discharge efficiency of dielectric barrier discharge(DBD)load.Due to the limitation of experimental environment and materials,the traditional experimental research is unable to study the discharge characteristics of dielectric barrier discharge under pulse excitation in more detail.In this paper,the DBD load filled with argon(Ar)gas under voltage pulse excitation is taken as the research object.The discharge curve of the model and the discharge characteristics of DBD under different pulse parameters and dielectric layer parameters are studied by constructing an one-dimensional fluid model of DBD load.The results show that the DBD load produces two times of discharges with opposite polarity in one cycle,and the intensity of the first discharge is higher than that of the second one.In addition,it is concluded through the study of the temporal and spatial characteristics of the electrical quantity in the discharge process that the performance of the DBD load can be improved by increasing the amplitude of the pulse voltage,shortening the pulse rise and fall time,selecting materials with high relative dielectric constant and reducing the thickness of the dielectric layer.

关 键 词：介质阻挡放电 脉冲电压 数值模拟 特性分析 

分 类 号：O461.2[理学—电子物理学]