Ceramic packaged multi-gap gas switch for fast linear transformer driver
-
摘要:
为了提高多间隙气体开关壳体的寿命、绝缘可靠性和装配的一致性，基于堆栈式多间隙气体开关开展了陶瓷封装多间隙气体开关工艺及击穿特性的研究。对比分析了不同封接工艺对陶瓷金属界面场分布的影响，优选了合理的封接结构。研制了用于FLTD的陶瓷封装多间隙气体开关并对其自击穿特性和触发特性开展了测试，结果表明：开关充干燥空气气压0.3 MPa、耐压±100 kV、峰值电流约30 kA条件下，5 000次放电的触发平均时延36.4 ns，抖动2.8 ns。该结果展示了陶瓷封装气体开关在产品化和免维护方面的优势，在FLTD模块中具有广阔应用前景。
Abstract:To improve the housing lifetime, insulation reliability and assembly consistency, the process and breakdown characteristics of a ceramic packaged multi-gap gas switch used for fast linear transformer driver (FLTD) were studied based on the multi-gap gas switch with stackable insulators and electrodes. The effects of different sealing processes on the electric field distribution of the interface between ceramic and metal were compared and analyzed, then the reasonable sealing structure was optimized. A ceramic packaged multi-gap gas switch was designed and its self-breakdown and triggering characteristics were experimentally tested. The results show that when the switch operates at the charging voltage of ±100 kV, the gas pressure of about 0.3 MPa and the peak current of 30 kA, the average delay time of 5 000 shots is 36.4 ns and the jitter is 2.8 ns. The ceramic package gas switch has the advantages on productization and maintenance-free, and will have broad application prospects in FLTD module.
-
Key words:
- multi-gap /
- gas switch /
- ceramic packaging /
- fast linear transformer driver /
- surface insulation
-
图 5 沿陶瓷壳体的外表面和内表面电场分布
Figure 5. Electric field distribution along inner and outer surface
图 10 每间隔1 000炮开关连续50发的平均时延及其抖动
Figure 10. Average time delay and jitter of 50 consecutive discharges after every 1 000 discharges
表 1 开关在不同工作电压和不同工作系数下触发时延及其抖动
Table 1. Measured delay and jitter of the switch under various charging voltage and switching coefficient
charging voltage/kV delay@60%/ns jitter@60%/ns delay@70%/ns jitter@70%/ns delay@80%/ns jitter@80%/ns ±70 47.9 1.4 38.7 1.6 33.8 0.6 ±80 46.6 1.5 36.5 1.5 32.4 1.2 ±90 46.1 3.2 34.3 1.3 31.4 1.2 ±100 44.1 4.5 33.7 1.4 31.0 3.0 
下载: 导出CSV
-
[1] 邓建军, 王勐, 谢卫平, 等. 面向Z箍缩驱动聚变能源需求的超高功率重复频率驱动器技术[J]. 强激光与粒子束, 2014, 26:100201. (Deng Jianjun, Wang Meng, Xie Weiping, et al. Super-power repetitive Z-pinch driver for fusion-fission reactor[J]. High Power Laser and Particle Beams, 2014, 26: 100201 doi: 10.11884/HPLPB201426.100201 [2] 孙凤举, 邱爱慈, 魏浩, 等. 闪光照相快放电直线型变压器脉冲源新进展[J]. 现代应用物理, 2015, 6(4):233-243. (Sun Fengju, Qiu Aici, Wei Hao, et al. Development of fast linear transformer drivers for radiography[J]. Modern Applied Physics, 2015, 6(4): 233-243 doi: 10.3969/j.issn.2095-6223.2015.04.001 [3] Zhou Lin, Li Zhenghong, Wang Zhen, et al. Design of a 5-MA 100-ns linear-transformer-driver accelerator for wire array Z-pinch experiments[J]. Phys Rev Accel Beams, 2016, 19: 030401. doi: 10.1103/PhysRevAccelBeams.19.030401 [4] Stygar W A, Awe T J, Bailey J E, et al. Conceptual designs of two petawatt-class pulsed-power accelerators for high-energy-density-physics experiments[J]. Phys Rev ST Accel Beams, 2015, 18: 110401. [5] 陈林, 王勐, 邹文康, 等. 中物院快脉冲直线型变压器驱动源技术研究进展[J]. 高电压技术, 2015, 41(6):1798-1806. (Chen Lin, Wang Meng, Zou Wenkang, et al. Recent advances in fast linear transformer driver in CAEP[J]. High Voltage Engineering, 2015, 41(6): 1798-1806 [6] Kim A A, Mazarakis M G, Sinebryukhov V A, et al. Development and tests of fast 1-MA linear transformer driver stages[J]. Phys Rev ST Accel Beams, 2009, 12: 050402. doi: 10.1103/PhysRevSTAB.12.050402 [7] Kim A, Frolov S, Alexeenko V, et al. Prefire probability of the switch type fast LTD[C]//17th IEEE International Pulsed Power Conference. 2009: 565-570. [8] Cong Peitian, Sun Tieping, Zeng Zhengzhong, et al. Analysis and enhancing of self-breakdown voltages of a multi-stage gas switch[J]. IEEE Trans Plasma Sci, 2013, 41(1): 187-191. doi: 10.1109/TPS.2012.2227125 [9] 丛培天, 邱爱慈. 快脉冲直线变压器气体开关技术[J]. 强激光与粒子束, 2012, 24(6):1263-1268. (Cong Peitian, Qiu Aici. Review on gas switches developed for fast linear transformer driver[J]. High Power Laser and Particle Beams, 2012, 24(6): 1263-1268 doi: 10.3788/HPLPB20122406.1263 [10] 孙铁平, 丛培天, 曾正中, 等. 快前沿直线脉冲变压器驱动源多间隙气体开关[J]. 强激光与粒子束, 2010, 22(7):3039-3042. (Sun Tieping, Cong Peitian, Zeng Zhengzhong. Multi-gap switch for fast linear transformer driver[J]. High Power Laser and Particle Beams, 2010, 22(7): 3039-3042 [11] 姜晓峰, 丛培天, 孙凤举, 等. 电晕均压多间隙串联气体开关特性实验[J]. 强激光与粒子束, 2016, 28:075009. (Jiang Xiaofeng, Cong Peitian, Sun Fengju, et al. Breakdown characteristics of a multi-gaps gas switch with needle-corona discharge for voltage balance[J]. High Power Laser and Particle Beams, 2016, 28: 075009 doi: 10.11884/HPLPB201628.075009 [12] 梁川, 周林, 孙凤举, 等. 0.1Hz800kA驱动源模块研制[J]. 强激光与粒子束, 2016, 28:015005. (Liang Chuan, Zhou Lin, Sun Fengju, et al. Investigation of a 0.1 Hz 800 kA LTD stage[J]. High Power Laser and Particle Beams, 2016, 28: 015005 doi: 10.11884/HPLPB201628.015005 -
点击查看大图
计量
- 文章访问数: 1389
- HTML全文浏览量: 420
- PDF下载量: 80
- 被引次数: 0
