期刊文献+

大型LTD装置功率源可靠性初步分析 被引量:3

Reliability of large LTD device analysis
下载PDF
导出
摘要 产生脉冲电流约50 MA的大型LTD装置功率源由数十万个电容器、开关和触发器组成。规模庞大的功率源采用串联系统可靠性模型,其可靠度想要达到一个较高的水平,存在所要求的开关可靠度难以实现的情况。大型LTD装置功率源的主要故障模式为开关自击穿和触发器故障,开关自击穿将导致其所在的模块故障,而触发器一对多的触发方式,使其故障时引起更多的模块故障。在LTD装置输出性能满足要求的前提下,允许存在一定数量的模块故障,并且控制故障模块分布,是实现功率源高可靠度的关键。基于概念设计的大型LTD装置功率源构成框架,分别建立了在功率源、支路、分层上控制故障模块数量的可靠性模型。采用蒙特卡罗方法对该模型进行仿真计算,得出了在给定的功率源可靠度条件下开关和触发器需要达到的可靠度。为实现该可靠性模型,使故障模块不对其他部分产生影响,还对故障模块隔离技术进行了分析。 A large LTD device capable of delivering about 50 MA pulsed current to load consists of hundreds of thousands of capacitors,switches and trigger units.To achieve high reliability of such an enormous system is quite difficult with the series system reliability model,the required reliability of each switch is almost impossible to realize.The main fault modes of LTD device are switch prefire and trigger unit fault.The switch prefire will result in the failure of the LTD cavity where the prefire occurs.The fault of trigger unit would affect more LTD cavities because one trigger unit triggers several LTD cavities.The key to achieve high reliability level and meet the required performance,it is key that some fault LTD cavities are allowed and the number of fault LTD cavities is limited in different place.In this paper a reliability model of the LTD system is built from a conceptual design of the LTD device.The number of the fault LTD cavities would be strictly limited in the system,module and layer in the reliability model.For a given system reliability,the reliability values of switch and trigger unit are calculated by Monte-Carlo method.The method of fault isolation is also analyzed.
出处 《强激光与粒子束》 EI CAS CSCD 北大核心 2018年第4期104-107,共4页 High Power Laser and Particle Beams
基金 国家自然科学重大基金项目
关键词 大型LTD装置 可靠性模型 故障模式 蒙特卡罗仿真 故障隔离 large LTD device reliability model main fault mode Monte-Carlo method fault isolation
  • 相关文献

参考文献5

二级参考文献39

  • 1李洪涛,丁伯南,王玉娟,谢卫平,傅贞,秦卫东,丁胜,万步勇,孟维涛,任靖,王厚明,龚德森.激光触发多级多通道开关触发延迟及其抖动特性[J].强激光与粒子束,2004,16(8):1054-1058. 被引量:18
  • 2夏明鹤,谢卫平,李洪涛,杨自祥,徐敏.具有预脉冲屏蔽板的水介质自击穿开关的电路模拟[J].强激光与粒子束,2004,16(12):1621-1625. 被引量:6
  • 3夏明鹤,谢卫平,李洪涛,杨自祥,丰树平,卫兵,傅贞,任靖,孟维涛.多通道自击穿水开关测试方法研究[J].强激光与粒子束,2005,17(11):1744-1748. 被引量:8
  • 4李洪涛,王玉娟,夏明鹤,关永超,傅贞,丁胜,任靖,孟维涛,戴英敏,韩文辉,丁伯南,丰树平,谢卫平,邓建军.高功率Z-pinch装置5MV主开关及开关区设计[J].强激光与粒子束,2006,18(3):459-462. 被引量:9
  • 5夏明鹤,王勐,王玉娟,计策,李洪涛,关永超,杨自祥,谢卫平,丰树平.4MV同轴-三平板型水介质自击穿开关设计[J].强激光与粒子束,2006,18(3):496-500. 被引量:9
  • 6Wilson J M. PBFA II energy storage section design[C]//4^th IEEE International Pulsed Power Conference. 1983:64.
  • 7Reass W A, Bowman D W, Gribble R F, et al. Design of the individual Marx modules for the Atlas machine 36 megajoule, 25 megampere capacitor bank[C]//10^th IEEE International Pulsed Power Conference. 1995:503.
  • 8刘锡三.高功率脉冲技术[M].北京:国防工业出版社,2005:42-47.
  • 9Deeney C, Douglas M R, Spielman R B, et al. Enhancement of X-ray power from a Z pinch using nested-wire arrays[J]. Phys Rev Lett, 1998, 81(22) :4883-4886.
  • 10Smith D L, Wilson J M, Slattery M J, et al. Two ZR Marx generator operating configurations that make possible their rolling upgrade integration into Z[C]//14^th IEEE International Pulsed Power Conference. 2003 : 1202-1204.

共引文献42

同被引文献16

引证文献3

二级引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部