多针-同轴电极介质阻挡放电的传输电荷产生条件分析  

An analysis of formation conditions for DBD transported charges of multineedle-to-cylinder

作　　者：王晓静[1] 孙才新[1] 李成祥[1] 米彦[1] 

机构地区：[1]重庆大学输配电及系统安全与新技术国家重点实验室,重庆400044

出　　处：《重庆大学学报（自然科学版）》2011年第9期134-141,共8页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50807054);输配电装备及系统安全与新技术国家重点实验室项目(2007DA10512709303;2007DA10512710501)

摘　　要：介质阻挡放电(DBD)能在常温大气压下产生均匀放电且能耗低,具有广阔的工业应用前景。针对多针-同轴电极,利用正交设计和Lissajous图形法试验研究了DBD电极阵列以及高频电源窗口参数匹配。DBD过程也是电荷传输的过程,传输的电荷量越多,等离子体的化学反应也越充分。正交设计以周期传输电荷量为目标因素,以电源电压幅值、频率、针长度以及纵向相邻针的夹角为试验因素。方差分析结果表明:电压幅值对目标因素的影响最显著,其次为电源频率;长度3.5mm和2mm的针以45°间隔排列的电极结构与电源频率21kHz的配合使得周期传输电荷量最大。进一步试验表明正交试验结果是正确的,对于提高DBD等离子体化学反应效率有重要意义。Dielectric barrier discharge（DBD） can produce homogenous discharge in normal temperature and atomsphere with low energy consumption,so it has broad development prospects in industrial applications.An experimental study is carried out to optimize the needles arrangement and supply parameters aiming at the multineedle-to-cylinder reactor with orthogonal design in combination with Lissajous figures.As it is konwn,the process of discharge is also the process of charge transfer;hence,the more charges are transported,the higher reaction efficiency in plasma is.The orthogonal design is established with transported charges as the goal factor,and supply voltage,supply frequency,needles length（NL）,interneedle rotation angles（INRA） as factors.Variance analysis results show that the largest influence factor is supply voltage,followed by supply frequency;the electrode configuration of NL=（3.5＋2） mm and INRA=45° matched with f=21 kHz makes transported charges per cycle biggest.The orthogonal experiment results are verified by further experiments,which is significant to improve the DBD plasma reaction efficiency.

关 键 词：介质阻挡放电 正交设计 LISSAJOUS图形 传输电荷 高频 多针-同轴 

分 类 号：TM85[电气工程—高电压与绝缘技术]