控制系统可靠性评估方法

Reliability assessment for control systems

针对控制系统应用的特点,依据国家标准GB/T20438的建模方法,本文提出了一种利用马尔可夫预测的基本原理,将马尔可夫链引入到控制系统可靠性模型建立中,利用状态转移矩阵计算可靠性指标的方法。并提出依据系统状态化简模型的具体方法。该方法可以有效的减少马尔可夫模型的复杂度,有利于可靠性指标的具体计算。

According to the characteristics of the control system,this thesis,on the basis of the GB/T20438 building model method of the national standard,proposes a way to introduce the markov chain into the construction of the reliability model in the control system and to make use of the state transition matrix to compute the reliability quota by the basic principle markov predicted.At the same time,the specific way of simplifying the model based on the system condition,which can reduce the complexity of the markov model and can do good to the specific calculation of the reliability quota.