Fault Detection of Networked Control Systems with Uncertain Time-Varying Delay and Quantization Error  

作　　者：李斌 万一鸣 叶昊 

机构地区：[1]Department of Automation, Tsinghua University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2011年第5期513-518,共6页上海交通大学学报（英文版）

基　　金：the National Basic Research Program(973) of China (No. 2010CB731800);the National Natural Science Foundation of China (Nos. 60974059,60736026 and 61021063)

摘　　要：Problems related to fault detection of networked control systems (NCSs) with both uncertain time-varying delay and quantization error are studied in this paper. A novel model with the form of polytopic uncertainty is given to represent the influences of both the time-varying delay and the quantization error, and then the reference model based method is used to design the residual generator that is robust to both unknown network-induced delay and unknown inputs. A numerical example is also given to illustrate the merits of the presented method. The proposed method can be regarded as an extension of the authors' former work, which can only deal with time-varying delay.Problems related to fault detection of networked control systems （NCSs） with both uncertain time-varying delay and quantization error are studied in this paper. A novel model with the form of polytopic uncertainty is given to represent the influences of both the time-varying delay and the quantization error, and then the reference model based method is used to design the residual generator that is robust to both unknown network-induced delay and unknown inputs. A numerical example is also given to illustrate the merits of the presented method. The proposed method can be regarded as an extension of the authors＇ former work, which can only deal with time-varying delay.

关 键 词：fault detection networked control systems (NCSs) DELAY quantization error polytopic uncertainty 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]