基于模塊化Marx電路和傳輸線變壓器的重頻納秒脈沖源設(shè)計
發(fā)布時間:2018-08-24 19:57
【摘要】:重頻納秒脈沖激勵的大氣壓等離子體放電具有反應(yīng)活性高等優(yōu)點(diǎn)。設(shè)計了基于模塊化雪崩三極管Marx電路和傳輸線變壓器的重頻納秒脈沖源。計算不同Marx模塊的導(dǎo)通時延和輸出波形的抖動,研究了磁心數(shù)量、位置和形狀對于輸出波形的影響。磁心電感越大、外徑與內(nèi)徑之比越大,且位于傳輸線變壓器第一級和最高一級時對脈沖疊加效率的提升作用越明顯。提出直接疊加和傳輸線變壓器兩種脈沖疊加方式組合的方法,進(jìn)一步提高輸出電壓。整體脈沖源可以在50~300Ω負(fù)載產(chǎn)生2~14k V,高阻負(fù)載產(chǎn)生4~25k V,前沿3.8ns,脈寬7~15ns,重復(fù)頻率0~10k Hz的重頻納秒脈沖電壓,裝置結(jié)構(gòu)緊湊,參數(shù)調(diào)節(jié)靈活,方便攜帶。
[Abstract]:The atmospheric pressure plasma discharge excited by nanosecond pulse has the advantage of high reactive activity. A nanosecond pulse source based on modularized avalanche transistor Marx circuit and transmission line transformer is designed. The conduction delay and the jitter of output waveforms are calculated for different Marx modules. The effects of the number, position and shape of magnetic cores on the output waveforms are studied. The larger the core inductance is, the larger the ratio of outer diameter to inner diameter is, and the more obvious the enhancement of pulse superposition efficiency is when the core inductance is located at the first and the highest stage of the transmission line transformer. A combination of direct superposition and transmission line transformer pulse stacking is proposed to further improve the output voltage. The whole pulse source can generate 2t 14kV at 50m 300 惟 load, 425kV at high resistance load, 3.8ns forward, 710k Hz repetition frequency nanosecond pulse voltage. The device has compact structure, flexible parameter adjustment and convenient carrying.
【作者單位】: 西安交通大學(xué)電氣工程學(xué)院;國網(wǎng)四川省電力公司天府新區(qū)供電公司;
【分類號】:TN782
本文編號:2201870
[Abstract]:The atmospheric pressure plasma discharge excited by nanosecond pulse has the advantage of high reactive activity. A nanosecond pulse source based on modularized avalanche transistor Marx circuit and transmission line transformer is designed. The conduction delay and the jitter of output waveforms are calculated for different Marx modules. The effects of the number, position and shape of magnetic cores on the output waveforms are studied. The larger the core inductance is, the larger the ratio of outer diameter to inner diameter is, and the more obvious the enhancement of pulse superposition efficiency is when the core inductance is located at the first and the highest stage of the transmission line transformer. A combination of direct superposition and transmission line transformer pulse stacking is proposed to further improve the output voltage. The whole pulse source can generate 2t 14kV at 50m 300 惟 load, 425kV at high resistance load, 3.8ns forward, 710k Hz repetition frequency nanosecond pulse voltage. The device has compact structure, flexible parameter adjustment and convenient carrying.
【作者單位】: 西安交通大學(xué)電氣工程學(xué)院;國網(wǎng)四川省電力公司天府新區(qū)供電公司;
【分類號】:TN782
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