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FLTD三电极场畸变气体开关寿命特性

李颖 靳建伟 陈立 孙凤举 李兴文 王志国 姜晓峰 吴坚 李鹏辉

李颖, 靳建伟, 陈立, 孙凤举, 李兴文, 王志国, 姜晓峰, 吴坚, 李鹏辉. FLTD三电极场畸变气体开关寿命特性[J]. 仁和测试, 2020, 32(3): 035002. doi: 10.11884/HPLPB202032.190339
引用本文: 李颖, 靳建伟, 陈立, 孙凤举, 李兴文, 王志国, 姜晓峰, 吴坚, 李鹏辉. FLTD三电极场畸变气体开关寿命特性[J]. 仁和测试, 2020, 32(3): 035002. doi: 10.11884/HPLPB202032.190339
Ying Li, Jianwei Jin, Li Chen, Fengju Sun, Xingwen Li, Zhiguo Wang, Xiaofeng Jiang, Jian Wu, Penghui Li. Lifetime characteristic of three-electrode field-distortion gas switch of fast linear transformer driver[J]. Rhhz Test, 2020, 32(3): 035002. doi: 10.11884/HPLPB202032.190339
Citation: Ying Li, Jianwei Jin, Li Chen, Fengju Sun, Xingwen Li, Zhiguo Wang, Xiaofeng Jiang, Jian Wu, Penghui Li. Lifetime characteristic of three-electrode field-distortion gas switch of fast linear transformer driver[J]. Rhhz Test, 2020, 32(3): 035002. doi: 10.11884/HPLPB202032.190339

FLTD三电极场畸变气体开关寿命特性

doi: 10.11884/HPLPB202032.190339
基金项目: 国家自然科学基金重大项目(51790523);国家自然科学基金青年基金项目(51807157)
详细信息
    作者简介:

    李颖:李 颖(1994—),女,硕士,初级,从事脉冲功率技术研究;liying1994@stu.xjtu.edu.cn

  • 中图分类号: TM85;TN78

Lifetime characteristic of three-electrode field-distortion gas switch of fast linear transformer driver

  • 摘要: 针对设计的一种场畸变气体开关,研究中间电极材料分别为不锈钢和黄铜条件下的烧蚀特性,结合开关寿命期间静态与触发特性的变化规律,获得决定开关寿命的关键因素,为三电极场畸变气体开关的性能优化提供理论支撑。研究结果表明,采用不锈钢和黄铜作为中间电极的烧蚀区域以及表面粗糙度均随着放电次数增加而增大,黄铜电极烧蚀较为严重且表面有明显的烧蚀圆斑,不锈钢电极则具有更高的表面粗糙度,阴阳极表面烧蚀存在明显差异,随着放电次数的增加,击穿点向电极边缘区域集中,影响开关的沿面绝缘特性,是导致开关寿命终结的主要原因。
  • 图  1  放电回路原理图

    Figure  1.  Schematic of switch of experiment circuit

    图  2  触发电极电压以及回路电流图

    Figure  2.  Typical waveforms of circuit current and voltage in trigger electrode

    图  3  触发次数与不同中间电极材料的自击穿电压关系

    Figure  3.  Relation ships between self-breakdown voltages and discharge times

    图  4  中间电极为不锈钢和黄铜时触发时延的组成及变化趋势

    Figure  4.  Variation trend of trigger time delay of intermediate electrode stainless steel and brass

    图  5  2 400次放电后不锈钢和黄铜电极表面宏观图

    Figure  5.  Macrographs of stainless steel and brass electrode surfaces after 2 400 discharges

    图  6  不锈钢、黄铜阳极表面微观形貌

    Figure  6.  Surface microstructure of stainless steel and brass anode

    图  7  中间电极为不锈钢时阴极、阳极表面轮廓线

    Figure  7.  Actual contours of anode and cathode after different discharge times (stainless steel electrodes)

    图  8  中间电极为黄铜时阴极、阳极表面轮廓线

    Figure  8.  Actual contours of anode and cathode after different discharge times (brass electrodes)

    图  9  中间电极表面粗糙度的变化趋势

    Figure  9.  Variation of surface roughness of intermediate electrode

    表  1  不同放电次数后电极表面烧蚀区域宽度

    Table  1.   Width of ablation area on electrode surface after different discharge times

    discharge times width of stainless steel/mm width of brass/mm
    cathode anode cathode anode
    1 200 6 6.5 6.1 7.36
    2 400 7.77 7.95 7.19 8.67
    3 600 8.36 8.63 7.9 9.05
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-09-06
  • 修回日期:  2019-11-11
  • 刊出日期:  2020-03-17

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