Experimental study on nanosecond-pulse diffuse discharge in atmospheric air

被引：1

作者：

Zhang, Cheng ^{[1
,2
]}

Shao, Tao ^{[1
,2
]}

Xu, Jiayu ^{[1
,3
]}

Ma, Hao ^{[1
,3
]}

Yan, Ping ^{[1
,2
]}

机构：

[1] Institute of Electrical Engineering, Chinese Academy of Sciences

[2] Key Laboratory of Power Electronics and Electric Drive, Chinese Academy of Sciences

[3] Graduate University of Chinese Academy of Sciences

来源：

Gaodianya Jishu/High Voltage Engineering | 2012年 / 38卷 / 05期

关键词：

Diffuse discharge; Discharge characteristics; Inhomogeneous electrical field; Nanosecond-pulse; Polarity effect; Pulse parameters; Pulse repetition frequency;

D O I：

10.3969/j.issn.1003-6520.2012.05.011

中图分类号：

学科分类号：

摘要：

Nanosecond-pulse can generate extremely high power density and large-scale non-thermal plasma, which attracts attentions. We used a repetitive nanosecond-pulse generator based on magnetic compression system to drive gas discharge in atmospheric air with a tube-to-plane gap, and investigated characteristics of diffuse discharge by the measurement of electrical discharge parameters and discharge images. The experimental results show that large-scale diffuse discharge can be obtained at atmospheric pressure with high pulse repetition frequency, and the diffuse discharge will transit to corona or spark mode with increasing or decreasing air gap spacing, respectively. Polarity effect occurs in repetitive nanosecond-pulse discharge, with a negative polarity of the electrode of small curvature radius, diffuse discharge needs more electric field for excitation than that with a positive polarity. In addition, intensity of the diffuse discharge decreases with the increase of the rise-time of pulse. Therefore, the diffuse discharge is likely available under certain conditions of proper air gap, high electric field with positive pulse, and fast rise time.

引用

页码：1090 / 1098

页数：8

共 27 条

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