Actuator fault estimation and accommodation for switched systems with time delay: Discrete-time case

被引：27
作者：
Du, Dongsheng [1 ,2 ]
Jiang, Bin [3 ,4 ]
机构：
[1] Huaiyin Inst Technol, Coll Automat, 1 Meicheng Rd, Huaian 223003, Jiangsu, Peoples R China
[2] Nanjing Univ Sci & Technol, Coll Automat, Nanjing 210094, Jiangsu, Peoples R China
[3] Nanjing Univ Aeronaut & Astronaut, Coll Automat Engn, Nanjing 210016, Jiangsu, Peoples R China
[4] Nanjing Univ Aeronaut & Astronaut, Jiangsu Key Lab Internet Things & Control Technol, Nanjing 210016, Jiangsu, Peoples R China
来源：
ISA TRANSACTIONS | 2016年 / 62卷
关键词：
Discrete-time switched system; Fault estimation; Reduced-order observer; Output feedback controller; TOLERANT CONTROL; COMPENSATION; STABILIZATION; STABILITY; OBSERVERS; DESIGN;
D O I：
10.1016/j.isatra.2016.02.004
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper investigates the problems of actuator fault estimation and accommodation for discrete-time switched systems with state delay. By using reduced-order observer method and switched Lyapunov function technique, a fault estimation algorithm is achieved for the discrete-time switched system with actuator fault and state delay. Then based on the obtained online fault estimation information, a switched dynamic output feedback controller is employed to compensate for the effect of faults by stabilizing the closed-loop systems. Finally, an example is proposed to illustrate the obtained results. (C) 2016 ISA. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：137 / 144
页数：8
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