40路可扩展高压脉冲触发器

周良骥; 何安; 丁瑜; 陈林; 王勐; 赵越

doi:10.11884/HPLPB201830.170451

40路可扩展高压脉冲触发器

doi: 10.11884/HPLPB201830.170451

周良骥^{1, 2,},
何安^{1, 2},
丁瑜^{1, 2},
陈林^{1, 2},
王勐^{1, 2},
赵越^{1, 2, ,}

1.
中国工程物理研究院流体物理研究所, 四川绵阳 621900
2.
中物院脉冲功率科学与技术重点实验室, 四川绵阳 621900

详细信息

作者简介:
周良骥(1979—)，副研究员，从事脉冲功率技术及应用研究; zljcaep@163.com

通讯作者:
赵越(1982—)，助理研究员，从事脉冲功率技术及应用研究; zy820314001@163.com

中图分类号: TM836
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出版历程
- 收稿日期: 2017-11-09
- 修回日期: 2018-04-03
- 刊出日期: 2018-09-15

Extendable high voltage trigger unit with 40 output cables

Zhou Liangji^{1, 2
,},
He An^{1, 2},
Ding Yu^{1, 2},
Chen Lin^{1, 2},
Wang Meng^{1, 2},
Zhao Yue^{1, 2
, ,}

1.
Institute of Fluid Physics, CAEP, P. O. Box 919-108, Mianyang 621900, China
2.
Key Laboratory of Pulsed Power, CAEP, P. O. Box 919-108, Mianyang 621900, China

摘要

摘要: 直线变压驱动源(LTD)代表一种新型电路拓扑结构，将储能电容分解为容量很小的单元，能够直接输出快脉冲，而且降低了基本器件所承受的电压和导通的能量，为重频长寿命的大型驱动器研制开辟了道路，因而成为下一代大型Z箍缩聚变能源驱动器的主流技术。LTD的设计思想是一种矛盾转移，将难点从极高电压极高电流的闭合开关转移到大阵列开关的同步触发，因此，触发技术成为研制大型LTD型驱动器的重点。提出了一种可扩展的触发技术，以小型Marx发生器作为初级储能源，利用水介质脉冲形成线作为脉冲形成单元，激光触发气体开关作为输出开关，通过高压电缆匹配输出高压脉冲。给出了输出40路高压脉冲的触发器单元的设计和初步实验结果，Marx充电±60 kV时，触发器单元在75 Ω匹配电阻负载输出电压峰值为106 kV，上升时间约27 ns(10%~90%)，半高宽约110 ns。作为输出开关的四个激光触发气体开关在~70%工作系数、激光总能量55 mJ的条件下，导通时间差异小于3 ns。
- 直线变压驱动源 /
- 触发系统 /
- 可扩展触发器 /
- 激光触发开关
Abstract: Linear transformer driver (LTD) is a new pulsed power technology with novel topology. It can generate fast high power pulse by dividing energy storage capacitor into many small ones, and gain high voltage by induction addition. One of the key characters and technique difficulties of LTD is the trigger theme. This paper introduces the concept of extendable trigger technology. An extendable trigger unit with 40 output cables was designed and tested. When the Marx was charged by ±60 kV, the trigger unit with a 75 Ω load output a peak voltage of 106 kV, and the risetime was 27 ns (10%~90%), FWHM was 110 ns. The trigger time difference of the four laser-triggered gas switches (as the output switches) was less than 3 ns under the conditions of about 70% working coefficient and total laser energy of 55 mJ.
- linear transformer driver /
- trigger system /
- extendable trigger unit /
- laser-triggered gas switch

HTML全文

图 1 可扩展触发器单元结构示意图

Figure 1. Schematic of extendable trigger unit

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图 2 可扩展触发器单元电路模型

Figure 2. Circuit diagram of extendable trigger unit

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图 3 可扩展触发器模拟输出波形

Figure 3. Simulation waveform of extendable trigger unit

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图 4 可扩展触发器单元

Figure 4. Extendable trigger unit

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图 5 激光器及光路配置

Figure 5. Layout of laser and optical path

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图 6 可扩展触发器实验波形

Figure 6. Experimental waveform of extendable trigger unit

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图 7 四个激光触发开关输出波形

Figure 7. Output pulses of four laser-triggered switches

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参考文献(8)

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[6]	周良骥. 快脉冲直线变压器驱动源(LTD)技术初步研究[D]. 北京: 中国工程物理研究院北京研究生部, 2006. Zhou Liangji. Initial research of fast linear transformer driver (LTD). Beijing: Graduated School of Chinese Academy of Engineering Physics, 2006
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[8]	丰树平, 李洪涛, 曹文彬, 等. Z箍缩实验装置高压低抖动Marx发生器[J]. 强激光与粒子束, 2009, 21(1): 152-156. http://www.hplpb.com.cn/article/id/3851 Feng Shuping, Li Hongtao, Cao Wenbin, et al. High voltage low jitter Marx generator of prototype module of primary test stand. High Power Laser and Particle Beams, 2009, 21(1): 152-156 http://www.hplpb.com.cn/article/id/3851