基于Markov延迟特性的闭环网络控制系统研究  

Research on Markov Delay Characteristic-Based Closed Loop Network Control System

作　　者：于之训[1] 陈辉堂[1] 王月娟[1] 

机构地区：[1]同济大学电气工程系,上海200092

出　　处：《控制理论与应用》2002年第2期263-267,共5页Control Theory & Applications

摘　　要：针对控制网络中固有的随机传输延迟 ,提出了一种新颖的控制模式 ,实现了对存在多步随机传输延迟的网络控制系统的数学建模 .基于该模型 ,利用Markov链理论 ,得到了满足给定性能指标的随机最优控制律 ,同时给出了求取相应的Markov链状态转移矩阵的方法 .文末通过实验研究 。Aiming at the stochastic transfer delay inherently existing in the control network, a novel control pattern is proposed, which implements the modeling of the network control system with multi_step stochastic transfer delay. Based on this model, utilizing Markov chain theory, the stochastic optimal control law satisfying the pre_specified performance index is obtained. Also the method calculating the corresponding Markov state transition matrix is given. Experimental results show the correctness and the validity of the proposed theory.

关 键 词：延迟特性 闭环网络控制系统 MARKOV链 数字模型 现场总线 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]