场畸变触发开关新型触发电极的设计与实验

发布时间：2018-11-22 19:25

【摘要】：气体触发开关是脉冲功率电路的重要组成器件。针对工程中对低抖动、长寿命气体触发开关的需求,结合三电极场畸变型触发开关,设计一种拥有较多孔隙的多环型触发极结构。对三种主电极-触发极分别为平板-多环、平板-圆盘、球冠-圆盘的开关进行击穿特性实验研究,结合电场仿真对比分析实验结果。实验结果表明:在22.4k V/40ns的触发脉冲和5.0~7.5k V的工作电压下,平板-多环结构的开关时延及抖动比较稳定,开关时延基本在81.0~84.5ns之间,抖动为0.8~1.1ns。平板-多环电极结构开关时延、抖动均明显优于平板-圆盘结构,其开关时延、抖动与球冠-圆盘结构基本相同但使用寿命优于球冠-圆盘结构。
[Abstract]:Gas trigger switch is an important component of pulse power circuit. In order to meet the need of low jitter and long life gas trigger switch in engineering, a multi-ring trigger pole structure with more pores is designed in combination with three-electrode field distortion trigger switch. The breakdown characteristics of the switches with three main electrode and trigger poles, which are plate-multi-ring, plate-disc and corona-disc, are studied experimentally. The experimental results are compared with those of electric field simulation. The experimental results show that under the trigger pulse of 22.4k V/40ns and the operating voltage of 5.0 ~ 7.5kV, the switching delay and jitter of the plate-multi-loop structure are stable, the switching delay is basically between 81.0~84.5ns and the jitter is 0.8 ~ 1.1ns. The switching delay and jitter of plate-multi-ring electrode structure are obviously better than that of plate-disc structure. The switching delay and jitter are basically the same as that of the spherical crown disk structure but the service life is better than that of the spherical crown disk structure.
【作者单位】：郑州大学电气工程学院;利物浦大学电气与电子工程系;
【基金】：国家自然科学基金(51407163) 河南省高校重点科研项目(16A470014) 河南省国际科技合作计划(152102410019)资助项目
【分类号】：TM564

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