Non-fragile robust H_(∞)control of nonlinear networked control systems with time-varying delay and unknown actuator failures  

作　　者：Yueming Zhi Shun Jiang Feng Pan 

机构地区：[1]Jiangnan University,Wuxi,China [2]Department of Automation,Jiangnan University,Wuxi,China

出　　处：《International Journal of Intelligent Computing and Cybernetics》2016年第3期298-312,共15页智能计算与控制论国际期刊（英文）

基　　金：This work was supported by the National Natural Science Foundation of China under Grant Nos 61403168 and 61273131;the Research Innovation Program for College Graduates of Jiangsu Province(KYLX15_1194).

摘　　要：Purpose-This paper is concerned with non-fragile robust H_(∞)control problems for nonlinear networked control systems(NCSs)with time-varying delay and unknown actuator failures.The paper aims to discuss these issues.Design/methodology/approach-The system parameters are allowed to have time-varying uncertainties and the actuator faults are unknown but whose upper and lower bounds are known.By using some lemmas,uncertainties can be replaces with the known values.By taking the exogenous disturbance and network transmission delay into consideration,a delay nonlinear system model is constructed.Findings-Based on Lyapunov stability theory,linear matrix inequalities(LMIs)and free weighting matrix methods,the sufficient conditions for the existence of the non-fragile robust H_(∞)controller gain are derived and which can obtained by solving the LMIs.Finally,a numerical example is provided to illustrate the effectiveness of the proposed methods.Originality/value-The introduced approach is interesting for NCSs with time-varying delay and unknown actuator failures.

关 键 词：Time-varying delay LMIs Nonlinear NCSs Robust H_(∞)control Unknown actuator failure 

分 类 号：O17[理学—数学]