华电技术 ›› 2011, Vol. 33 ›› Issue (9): 16-20.

• 研究与开发 • 上一篇    下一篇

除氧器水位保护系统的可靠性分析

李力,肖长歌   

  1. 国核电力规划设计研究院,北京100094
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-09-25 发布日期:2011-09-25

Analysis on reliability of water level protection system of deaerator

LI Li, XIAO Changge   

  1. State Nuclear Electric Power Planning Design and Research Institute, Beijing 100094, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-09-25 Published:2011-09-25

摘要: 采用马尔可夫模型方法建立了除氧器水位保护系统的可靠性模型。分别从系统的结构、诊断覆盖率、共因等方面研究其对除氧器水位保护系统可靠性的影响。仿真试验数据表明,采用多重的冗余系统结构、提高系统的诊断覆盖率、降低系统的共因影响能够提高系统整体的平均故障前时间,并降低系统的失效率。

关键词: 可靠性, 马尔可夫模型, 诊断覆盖率, 共因, 平均故障前时间, 失效率, 除氧器水位

Abstract: By using the Markov model, the reliability model of deaerator water level protection system was established. The influences of system structure, the diagnosis coverage rate, the common factors and others on the reliability of deaerator water level protection system were analyzed. The simulation data show that to adopt multiple redundant system structure, to increase the system diagnosis coverage rate and to reduce the influence of the system common factors can increase the MTTF of whole system and decrease the system failure rate.

Key words: reliability, Markov model, diagnosis coverage rate, common factors, mean time to failure (MTTF), failure rate, deaerator water level