具有时变通信受限非线性信息物理系统的网络化预测控制  

Networked predictive control of nonlinear cyber physical systems with time-varying communication constraints

作　　者：刘国平 LIU Guo-pingy(Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen Guangdong 518055,China;Department of Artificial Intelligence and Automation,Wuhan University,Wuhan Hubei 430076,China)

机构地区：[1]南方科技大学电子与电气工程系,广东深圳518055 [2]武汉大学人工智能与自动化系,湖北武汉430076

出　　处：《控制理论与应用》2022年第1期145-153,共9页Control Theory & Applications

基　　金：国家自然科学基金项目(61773144)资助.

摘　　要：针对具有时变通信受限的一类非线性信息物理系统,本文采用网络化预测控制策略,对于时变通信时延和数据丢失,不是使用常规的被动方式抑制,而是进行主动补偿.为了使补偿时变通信受限的方式简单、主动和通用,提出了一种新颖的网络化非线性预测控制方法.所设计的网络化非线性预测控制器能达到具有与无网络的本地闭环控制系统完全相同的期望控制性能.同时,经系统稳定性分析,给出了闭环网络化非线性预测控制系统稳定的充要条件.数值算例说明了所提网络化非线性预测控制器设计方法对信息物理系统中时变通信延时实现了完全补偿.For a class of nonlinear cyber physical systems with time-varying communication constraints,the networked predictive control strategy is adopted in this paper.It does not use the conventional passive suppression method but employs the active compensation method to overcome the time-varying communication delay and data loss.To make the method of compensating for time-varying communication constraints simple,active and universal,a novel networked nonlinear predictive control method is proposed.The designed networked nonlinear predictive controller can achieve the same expected control performance as a local closed-loop control system without networks.At the same time,the necessary and sufficient conditions for the stability of the closed-loop networked nonlinear predictive control systems are derived.Numerical examples show that the proposed networked nonlinear predictive control method can fully compensate for the time-varying communication delays in cyber physical systems.

关 键 词：网络化预测控制 时变通信受限 非线性系统 信息物理系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]