A Novel Networked Predictive Control Method for Systems with Random Communication Constraints  

作　　者：PANG Zhonghua BAI Chuandong LIU Guoping HAN Qinglong ZHANG Xianming 

机构地区：[1]Key Laboratory of Fieldbus Technology and Automation of Beijing,North China University of Technology,Beijing 100144,China [2]Department of Artificial Intelligence and Automation,Wuhan University,Wuhan 430072,China [3]School of Software and Electrical Engineering,Swinburne University of Technology,Melbourne,VIC 3122,Australia

出　　处：《Journal of Systems Science & Complexity》2021年第4期1364-1378,共15页系统科学与复杂性学报（英文版）

基　　金：supported in part by the National Natural Science Foundation of China under Grant Nos.61673023 and 61773144;the Youth Talent Support Program of Beijing Municipality;the NCUT Yujie Talent Training Program;the NCUT Science and Technology Innovation Project;the BMEC Basic Scientific Research Foundation。

摘　　要：This paper presents a novel observer-based predictive control method for networked systems where random network-induced delays,packet disorders and packet dropouts in both feedback and forward channels are considered.The proposed method has three significant features:i)A concept of destination-based lumped(DBL)delay is introduced to represent the combined effects of random communication constraints in each channel;ii)in view of different natures of the random DBL delays in the feedback and forward channels,different compensation schemes are designed;and iii)it is actual control inputs rather than predicted ones that are employed to generate future control signals based on the latest system state estimate available in the controller.For the resulting closed-loop system,a necessary and sufficient stability condition is derived,which is less conservative and also independent of random communication constraints in both channels.Simulation results are provided to demonstrate the effectiveness of the proposed method.

关 键 词：Networked control systems(NCSs) network-induced delay networked predictive control packet disorder packet dropout 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]