介质阻挡放电中反向放电的实验研究  

Experimental Study of Reverse-discharge in Dielectric Barrier Discharge

作　　者：丁伟[1] 何立明[1] 兰于丹[1] 曾昊[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038

出　　处：《高压电器》2010年第2期23-26,共4页High Voltage Apparatus

基　　金：国家自然科学基金项目(50776100)

摘　　要：利用介质阻挡放电(DBD)实验装置和测量系统研究了不同的介质板厚度、驱动电压幅值以及气体间隙距离的DBD特性,并运用气体放电理论对试验结果进行了分析。结果表明,随着介质板厚度、气体间隙距离的减小以及驱动电压幅值的增加,DBD放电电流脉冲增多,由于壁电荷的作用,发生放电所需的电压减小;当壁电荷电场足够大时,将在驱动电压下降沿发生反向放电。The influences of such factors as amplitude of applied voltage, air gap distance, and thickness of dielectric layer on characteristic of dielectric barrier discharge（DBD） were investigated with the established experimental DBD system and the corresponding measurement system, and the experimental data was theoretically analyzed with the theory of gas discharge. The results show that with the decreasing of dielectric layer thickness, air gap distance, or amplitude of applied voltage, the number of DBD current pulse increases and the needed voltage for air breakdown decreases due to surface charges. Sufficient electric field intensity of surface charges will lead to reverse-discharge on the falling edge of applied voltage .

关 键 词：介质阻挡放电 壁电荷 微放电 反向放电 

分 类 号：TM83[电气工程—高电压与绝缘技术]