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基于动态故障树与蒙特卡罗仿真的保护系统动态可靠性评估
引用本文:戴志辉,王增平,焦彦军.基于动态故障树与蒙特卡罗仿真的保护系统动态可靠性评估[J].中国电机工程学报,2011,31(19).
作者姓名:戴志辉  王增平  焦彦军
作者单位:华北电力大学电气与电子工程学院,河北省 保定市,071003
基金项目:国家自然科学基金重点项目(50837002)~~
摘    要:依据数字继电保护系统的功能和工作特点,提出一种保护系统动态可靠性的定量分析方法,旨在为寻找系统薄弱环节、提高保护设计及运行可靠性提供参考依据。首先,确立保护系统累积失效概率、可用度和基本部件概率重要度指标。其次,建立马尔科夫状态空间与动态故障树相结合的微机保护系统动态可靠性模型,提出基于动态故障树结构函数的蒙特卡罗仿真方法,以进行保护系统可靠性定量评估。最后以算例验证所提方法的有效性,并进行相关分析。结果表明该方法对保护系统可靠性评估、部件影响分析及薄弱环节识别具有参考价值。

关 键 词:继电保护系统  动态可靠性  动态故障树  蒙特卡罗仿真

Dynamic Reliability Assessment of Protection System Based on Dynamic Fault Tree and Monte Carlo Simulation
DAI Zhihui , WANG Zengping , JIAO Yanjun.Dynamic Reliability Assessment of Protection System Based on Dynamic Fault Tree and Monte Carlo Simulation[J].Proceedings of the CSEE,2011,31(19).
Authors:DAI Zhihui  WANG Zengping  JIAO Yanjun
Institution:DAI Zhihui,WANG Zengping,JIAO Yanjun(School of Electrical and Electronic Engineering,North China Electric Power University,Baoding 071003,Hebei Province,China)
Abstract:According to the function and operating characteristics of protection system,a dynamic reliability analysis method of protection system was proposed to supply a basis for searching system weakness as well as improving design and operating reliability.Cumulative failure probability,protection availability and component probability importance indices were defined firstly.Secondly,a dynamic reliability model of repairable redundant digital protection system combining dynamic fault tree(DFT) and Markov state sp...
Keywords:protection system  dynamic reliability  dynamic fault tree(DFT)  Monte Carlo simulation  
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