ncs-dmc预测控制算法.docx

NCS-DMC 预测控制算法摘要: 网络控制系统由于可实现资源共享,连接线数少、易于扩展和维护等优点, 已经成为自动化领域技术发展的热点之一。控制系统的控制元件通过公共网络进行数据交换和传输,网络控制中网络的介入,带来了时延、丢包、乱序、网络调度方式以及节点驱动方式等一系列问题,给 NCS 的设计带来了难题。近年来,学界对于网络化控制系统控制策略的研究取得大量的成果,出现了许多有效的方法。本文主要针对预测控制策略,介绍了动态矩阵算法的基本原理以及各个参数对控制性能的影响。关键词:网络控制系统;时延;预测控制;动态矩阵控制 NCS-DMC Predictive Control Algorithm WANG Weiguo ( School of Mechatronics Engineering and Automation , Shanghai University, Shanghai 200072, China) Abstract: With the advantages of resource sharing, fewer cables, easy to expand and maintain, Network control system has e one of the focus in the development of automation technology . Owing to the introduction works to control systems, network-induced delays and dropout packet phenomenon are almost unavoidable, which often degrade control performance and a? ect system stability. In fact, the issue of the controller design and stability analysis worked systems munication delays and data dropout isa really hard task. Recently, academic c ommunity for the research worked control system control strategy has got a lot of achievements, many effective methods were proposed. In this paper, in view of predictive control strategy, the basic principles of dynamic matrix algorithm and the parameters on the control performance is described. Key words : network control system; time delay; predictive control; dynamic matrix algorithm 0 引言随着网络技术和控制技术的不断发展,网络控制系统得到了广泛的应用,使得控制系统更加便捷。网络控制系统