Signal difference-based deadband H_∞ control approach for networked control systems with limited resources  

作　　者：Yingying Liu Weiwei Che Yunkai Chu 

机构地区：[1]School of Information Engineering, Shenyang University [2]Key Laboratory of Manufacturing Industrial Integrated Automation, Shenyang University [3]Shenyang Institute of Automation Chinese Academy of Sciences

出　　处：《Journal of Systems Engineering and Electronics》2015年第3期573-583,共11页系统工程与电子技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(61104106;61473195);the Natural Science Foundation of Liaoning Province(201202156);the Program for Liaoning Excellent Talents in University(LJQ2012100)

摘　　要：This paper investigates a signal difference-based dead- band H∞ control approach for networked control systems （NCSs） with limited resources. The effects of variable network-induced de- lays, sampling intervals and data transmitting deadbands are con- sidered simultaneously and the model of the NCS is presented. A Lyapunov functional is adopted, which makes full use of the network characteristic information including the bounds of net- work delay （BND）, the bounds of sampling interval （BSI） and the bounds of transmission deadband （BTD）. In the meanwhile, the new H∞ performance analysis and controller design conditions for the NCSs are proposed, which describe the relationship of BND, BSI, BTD and the system＇s performance. Three examples are used to illustrate the advantages of the proposed methods. The results have shown that the proposed method not only effectively reduces the data traffic, but also guarantees the system asymptotically sta- ble and achieves the prescribed H∞ disturbance attenuation level.This paper investigates a signal difference-based dead- band H∞ control approach for networked control systems （NCSs） with limited resources. The effects of variable network-induced de- lays, sampling intervals and data transmitting deadbands are con- sidered simultaneously and the model of the NCS is presented. A Lyapunov functional is adopted, which makes full use of the network characteristic information including the bounds of net- work delay （BND）, the bounds of sampling interval （BSI） and the bounds of transmission deadband （BTD）. In the meanwhile, the new H∞ performance analysis and controller design conditions for the NCSs are proposed, which describe the relationship of BND, BSI, BTD and the system＇s performance. Three examples are used to illustrate the advantages of the proposed methods. The results have shown that the proposed method not only effectively reduces the data traffic, but also guarantees the system asymptotically sta- ble and achieves the prescribed H∞ disturbance attenuation level.

关 键 词：networked control system （NCS） H∞ control vari-able network-induced delay variable sampling interval transmission deadband. 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TM464.02[自动化与计算机技术—控制科学与工程]