脉冲作用下气体火花开关电极熔蚀研究
发布时间：2018-08-24 11:00
【摘要】：气体火花开关在脉冲功率技术领域中具有广泛的应用,是大型脉冲功率装置的关键器件之一,对装置的输出参数和运行稳定性都有重要的影响。电极熔蚀作为气体火花开关不可避免的问题,从气体火花开关应用之初就得到了关注和研究。国内外学者针对电极熔蚀问题,从电极表面形貌变化、蚀坑表征参数、熔蚀热源分析、电极材料移出作用力和电极熔蚀对气体火花开关性能的影响等多个方面进行了广泛的研究,提出了几种电极表面蚀坑的表征参数,形成了经典的1维、2维电极熔蚀模型,并初步研究了重复运行时电极熔蚀对气体火花开关触发性能的影响。分析了目前高功率火花开关研究所临的主要问题,讨论了快前沿脉冲重频作用下,气体火花开关在电极熔蚀机理上可能存在的区别,指出了电极熔蚀后续研究的方向和关键点。
[Abstract]:Gas spark switch has been widely used in the field of pulse power technology. It is one of the key devices of large pulse power device. It has an important effect on the output parameters and operation stability of the device. Electrode erosion, as an inevitable problem of gas spark switch, has been concerned and studied since the beginning of its application. Aiming at the problem of electrode erosion, scholars at home and abroad have analyzed the surface morphology of the electrode, the characterization parameters of the etch pit, and the heat source of the corrosion. The influence of the removal force of electrode material and the effect of electrode erosion on the performance of gas spark switch have been extensively studied. The characterization parameters of several kinds of electrode surface etch pits have been put forward, and the classical 1 D / 2 dimensional electrode erosion model has been formed. The effect of electrode erosion on the trigger performance of gas spark switch during repeated operation was preliminarily studied. This paper analyzes the main problems in the research of high power spark switches at present, discusses the possible differences in the electrode erosion mechanism of gas spark switches under the action of fast front pulse repetition, and points out the direction and key points for further research on electrode ablation.
【作者单位】： 西安交通大学电力设备电气绝缘国家重点实验室;
【基金】：国家自然科学基金(51207127)~~
【分类号】：TM564
本文编号：2200609
[Abstract]:Gas spark switch has been widely used in the field of pulse power technology. It is one of the key devices of large pulse power device. It has an important effect on the output parameters and operation stability of the device. Electrode erosion, as an inevitable problem of gas spark switch, has been concerned and studied since the beginning of its application. Aiming at the problem of electrode erosion, scholars at home and abroad have analyzed the surface morphology of the electrode, the characterization parameters of the etch pit, and the heat source of the corrosion. The influence of the removal force of electrode material and the effect of electrode erosion on the performance of gas spark switch have been extensively studied. The characterization parameters of several kinds of electrode surface etch pits have been put forward, and the classical 1 D / 2 dimensional electrode erosion model has been formed. The effect of electrode erosion on the trigger performance of gas spark switch during repeated operation was preliminarily studied. This paper analyzes the main problems in the research of high power spark switches at present, discusses the possible differences in the electrode erosion mechanism of gas spark switches under the action of fast front pulse repetition, and points out the direction and key points for further research on electrode ablation.
【作者单位】： 西安交通大学电力设备电气绝缘国家重点实验室;
【基金】：国家自然科学基金(51207127)~~
【分类号】：TM564
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