title: Sensor Fault and Delay Tolerant Control for Networked Control Systems Subject to External Disturbances.
abstract: In this paper, the problem of sensor fault and delay tolerant control problem for a class of networked control systems under external disturbances is investigated. More precisely, the dynamic characteristics of the external disturbance and sensor fault are described as the output of exogenous systems first. The original sensor fault and delay tolerant control problem is reformulated as an equivalence problem with designed available system output and reformed performance index. The feedforward and feedback sensor fault tolerant controller (FFSFTC) can be obtained by utilizing the solutions of Riccati matrix equation and Stein matrix equation. Based on the designed fault diagnoser, the proposed FFSFTC is further reconstructed to compensate for the sensor fault and delayed measurement effects. Finally, numerical examples are provided to illustrate the effectiveness of our proposed FFSFTC with different cases with various types of sensor faults, measurement delays and external disturbances.
authors.affiliation: Shandong Provincial Key Laboratory of Network Based Intelligent Computing, University of Jinan, Jinan 250022 , China. ise_hansy@ujn.edu.cn.
authors.forename: Shi-Yuan
authors.initials: SY
authors.lastname: Han
authors.affiliation: Shandong Provincial Key Laboratory of Network Based Intelligent Computing, University of Jinan, Jinan 250022 , China. yhchen@ujn.edu.cn.
authors.forename: Yue-Hui
authors.initials: YH
authors.lastname: Chen
authors.affiliation: College of Information Science and Engineering, Ocean University of China, Tsingtao 266100, China. gtang@ouc.edu.cn.
authors.forename: Gong-You
authors.initials: GY
authors.lastname: Tang
keywords: delayed measurement; disturbance rejection; external disturbances; fault tolerance control; sensor fault