基于模块化Marx电路和传输线变压器的重频纳秒脉冲源设计
发布时间：2018-08-24 19:57
【摘要】：重频纳秒脉冲激励的大气压等离子体放电具有反应活性高等优点。设计了基于模块化雪崩三极管Marx电路和传输线变压器的重频纳秒脉冲源。计算不同Marx模块的导通时延和输出波形的抖动,研究了磁心数量、位置和形状对于输出波形的影响。磁心电感越大、外径与内径之比越大,且位于传输线变压器第一级和最高一级时对脉冲叠加效率的提升作用越明显。提出直接叠加和传输线变压器两种脉冲叠加方式组合的方法,进一步提高输出电压。整体脉冲源可以在50~300Ω负载产生2~14k V,高阻负载产生4~25k V,前沿3.8ns,脉宽7~15ns,重复频率0~10k Hz的重频纳秒脉冲电压,装置结构紧凑,参数调节灵活,方便携带。
[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.
【作者单位】： 西安交通大学电气工程学院;国网四川省电力公司天府新区供电公司;
【分类号】：TN782
本文编号：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.
【作者单位】： 西安交通大学电气工程学院;国网四川省电力公司天府新区供电公司;
【分类号】：TN782
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