Production of an Atmospheric-Pressure Glow Discharge Using an Inductive Energy Storage Pulsed Power Generator
Production of an Atmospheric-Pressure Glow Discharge Using an Inductive Energy Storage Pulsed Power Generator
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DOI：
10.1002/ppap.200600060
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发表时间：
2006-11
影响因子：
3.5
通讯作者：
K. Takaki;H. Kirihara;C. Noda;S. Mukaigawa;T. Fujiwara
中科院分区：
文献类型：
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作者：
K. Takaki;H. Kirihara;C. Noda;S. Mukaigawa;T. Fujiwara
利用电感储能脉冲功率发生器产生了大气压辉光放电。在氮气中，采用上升时间小于30 ns的脉冲高压在针阵列电极的所有尖端同时产生流光放电。大量的流光放电防止由不均匀热化引起的辉光到电弧的转变。SOS二极管用作开路开关以缩短上升时间。电路参数，例如初级能量存储电容器的电容和/或次级能量存储电感器的电感，通过使用虚拟电阻负载的实验结果来确定。结果表明，产生大气压辉光放电和电晕放电所需的电路参数是不同的。在虚负载电阻为193 Ω时，脉冲功率发生器的能量转换效率达到最大值75%。辉光放电的电压-电流特性表现出两个区域：恒定电压（正常辉光）和随放电电流增加的电压（异常辉光）。通过消除SOS二极管，辉光电流急剧降低，在这种情况下，充电电压直接施加到电极。空间和时间平均的电子密度在一个积极的柱估计从计算的基础上氮群数据。电子密度为1.8 × 1011 cm-3，远大于无SOS二极管时的9.7 × 109 cm-3.
An atmospheric-pressure glow discharge has been generated using an inductive energy storage pulsed power generator. A pulsed high voltage with a short rise time of under 30 ns is employed to generate streamer discharges simultaneously at all tips of a needle-array electrode in nitrogen. The large number of streamer discharges prevent glow-to-arc transitions caused by inhomogeneous thermalization. SOS diodes are used as an opening switch to shorten the rise time. Circuit parameters such as the capacitance of a primary energy storage capacitor and/or the inductance of a secondary energy storage inductor are determined by experimental results using dummy resistive loads. The results show that circuit parameters adequate for producing atmospheric glow discharges are different from those for producing corona discharges. The energy transfer efficiency of the pulsed power generator has a maximum value of 75% at 193 Ω dummy load resistance. Voltage-current characteristics of the glow discharge show two regions: constant voltage (normal glow) and an increasing voltage with discharge current (abnormal glow). The glow current is drastically decreased by eliminating the SOS diodes, in which case the charging voltage is directly applied to the electrode. Spatial-and time-averaged electron densities in a positive column are estimated from calculations based on nitrogen swarm data. The electron density is estimated to be 1.8 × 10 11 cm -3 , which is much larger than 9.7 × 10 9 cm -3 in the case without the SOS diodes.