王聪, 叶田园, 赵越阳, 等. 电压和频率对CO2介质阻挡放电特性影响的实验研究[J]. 航天器环境工程, 2020, 37(6): 610-616 DOI: 10.12126/see.2020.06.012
引用本文: 王聪, 叶田园, 赵越阳, 等. 电压和频率对CO2介质阻挡放电特性影响的实验研究[J]. 航天器环境工程, 2020, 37(6): 610-616 DOI: 10.12126/see.2020.06.012
WANG C, YE T Y, ZHAO Y Y, et al. Experimental study of the influence of voltage and frequency on the characteristics of CO2 dielectric barrier discharge[J]. Spacecraft Environment Engineering, 2020, 37(6): 610-616 DOI: 10.12126/see.2020.06.012
Citation: WANG C, YE T Y, ZHAO Y Y, et al. Experimental study of the influence of voltage and frequency on the characteristics of CO2 dielectric barrier discharge[J]. Spacecraft Environment Engineering, 2020, 37(6): 610-616 DOI: 10.12126/see.2020.06.012

电压和频率对CO2介质阻挡放电特性影响的实验研究

Experimental study of the influence of voltage and frequency on the characteristics of CO2 dielectric barrier discharge

  • 摘要: 为考查电压幅值和电源频率对CO2介质阻挡放电光电特性的影响,设计棒–棒介质阻挡放电结构,施加交流电压驱动CO2放电开展实验研究。结果表明:随着电压增大,放电电流脉冲和丝状放电通道数目增加,电流峰值和放电功率增大;放电逐渐由单个放电通道变为随机运动的多个放电通道,最后沿介质表面扩展并趋于均匀;不同外施电压下放电功率的变化率有所差异,主要与放电区域大小有关;随着频率增大,起始放电电压略有增大,熄灭电压有所减小,放电强度增加,但放电区域基本不变;电压为15 kV时,不同电流脉冲对应同一位置不同时刻的击穿过程,正、负放电第2个脉冲的放电强度强于第1个脉冲的,且均在瞬时阴极形成一个较亮区域,主要与第1次放电的残余粒子有关。

     

    Abstract: In this paper, a rod-rod dielectric barrier discharge (DBD) structure is designed, and an AC voltage is applied to drive the CO2 discharge. The influence of the voltage amplitude and the frequency on the optical and electrical characteristics of the CO2 dielectric barrier discharge is investigated. It is shown that as the voltage increases, the number of the discharge current pulses and the filament discharge channels increase, along with the increase of the current peak value and the discharge power; the discharge is gradually observed from a single channel to multiple channels, move randomly, and finally expands along the surface of the medium. The change rate of the discharge power varies in the voltage range, mainly related to the size of the discharge area. With the increase of the frequency, the initial discharge voltage increases slightly, while the extinction voltage decreases, and the discharge intensity increases with the discharge area remaining basically unchanged. Under a voltage of 15 kV, different current pulses can be seen corresponding to the breakdown process at different times and at the same location. For positive or negative discharge, the discharge of the second pulse is stronger in intensity than that of the first pulse, and a bright region is formed in the instantaneous cathode, mainly related to the residual particles of the first discharge.

     

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