
广东工业大学 自动化学院,广东,广州,510006
Online First:10 July 2022,
Published:2022
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邹翀, 唐雄民, 陈伟正, 江天鸿, 方文睿. 脉冲电流源作用下大气压介质阻挡放电的特性分析[J]. 广东工业大学学报, 2022, 39(4): 36-45.
Zou Chong, Tang Xiong-min, Chen Wei-zheng, et al. A Characteristic Analysis of Atmospheric Pressure Dielectric Barrier Discharge Powered by Pulse Current Source[J]. 2022, 39(4): 36-45.
邹翀, 唐雄民, 陈伟正, 江天鸿, 方文睿. 脉冲电流源作用下大气压介质阻挡放电的特性分析[J]. 广东工业大学学报, 2022, 39(4): 36-45. DOI: 10.12052/gdutxb.210007.
Zou Chong, Tang Xiong-min, Chen Wei-zheng, et al. A Characteristic Analysis of Atmospheric Pressure Dielectric Barrier Discharge Powered by Pulse Current Source[J]. 2022, 39(4): 36-45. DOI: 10.12052/gdutxb.210007.
针对目前研究人员主要是对正弦电压或脉冲电压下大气压介质阻挡放电 (Atmospheric Pressure Dielectric Barrier Discharge
APDBD)的特性进行分析以及少有研究人员对电流源作用下APDBD特性进行分析这一现状,以双极性脉冲电流激励下的氦气(He)型APDBD为研究对象,通过构建APDBD一维流体模型对APDBD的伏安–时间特性、氦离子(He
+
)与激发态的氦原子(He
*
)的时空分布特征进行数值分析。结果表明:He
+
、He
*
的数密度与外施电流幅值存在正相关性、与气隙宽度存在负相关性;气隙击穿电压与外施电流幅值呈负相关性、与气隙宽度呈正相关性;气隙宽度和外施电流幅值的增加都会使He
*
密集区更分散。此外,还对APDBD的电气等效电路、气隙宽度的选择、电流幅值的设定、电流脉宽、电流上升时间及电源频率对APDBD特性的影响进行了讨论。
Since the characteristics of Atmospheric Pressure Dielectric Barrier Discharges (APDBD) are usually analyzed under sinusoidal voltage or pulse voltage
the characteristics of APDBDs powered by current source have been little studied. To address the issue
the characteristics of APDBD filled with helium are studied under bipolar pulse current. By constructing a one-dimensional fluid model of the APDBD
the voltammetry property of the APDBD and the temporal-spatial distribution characteristics of helium ions (He
+
) and excited helium
atoms (He
*
) are numerically analyzed. The results show that the number density of He
+
and He
*
is proportional to the current amplitude
and negatively correlated with the gap width. The breakdown voltage of the gap is negatively correlated with the amplitude of the applied current and positively correlated with the width of the gap. The increase of the gap width and the current amplitude makes the He
*
dense area more dispersed. In addition
the electrical equivalent circuit of APDBD
the selection of gap width effects
the effects of current amplitude
current rise time and working frequency are discussed.
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