Robust fault tolerant control of continuous-time switched systems: An LMI approach

被引：22
|
作者：
Ladel, Ayyoub Ait [1 ,2 ]
Benzaouia, Abdellah [1 ]
Outbib, Rachid [2 ]
Ouladsine, Mustapha [2 ]
El Adel, El Mostafa [2 ]
机构：
[1] Cadi Ayyad Univ, Fac Sci Semlalia, Dept Phys, LAEPT, PB 2390, Marrakech, Morocco
[2] Aix Marseille Univ, LIS Lab, UMR CNRS 7020, F-13397 Marseille, France
来源：
NONLINEAR ANALYSIS-HYBRID SYSTEMS | 2021年 / 39卷 / 39期
关键词：
Fault tolerant control; Fault estimation; Switched systems; Mode-dependent average dwell time; Observer-based control; Linear matrix inequality (LMI); S FUZZY-SYSTEMS; STATE-FEEDBACK CONTROL; LINEAR-SYSTEMS; STABILITY ANALYSIS; NONLINEAR-SYSTEMS; ACTUATOR; DESIGN; SENSOR; STABILIZATION; DELAY;
D O I：
10.1016/j.nahs.2020.100950
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The present paper proposes a new robust fault tolerant control (RFTC) design for continuous-time switched systems. The main objective is to design in an integrated way the couple (controller, observer) that allows to stabilize switched systems even in the presence of actuator faults. A state/fault estimation observer is designed to simultaneously estimate system state and actuator faults. Based on this observer, a fault tolerant controller is developed to stabilize the system and accommodate the actuator faults automatically. The RFTC problem is formalized in the form of linear matrix inequalities (LMI) rather than bilinear matrix inequalities (BMI), to avoid the difficulty of solving BMIs. Finally, a numerical example composed of unstable subsystems is studied to show the applicability and efficiency of the obtained results. (c) 2020 Elsevier Ltd. All rights reserved.
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页数：15
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