Dynamic output feedback fault tolerant controller design for discrete-time switched systems with actuator fault. (May 2015)

• Record Type: Journal Article
• Authors: Du, Dongsheng; Tan, Yushun; Zhang, Yue
• Is Part Of: Nonlinear analysis. Volume 16(2015)
• Page Start: 93
• Page End: 103
• Publication Date: 2015-05
• Subjects: Discrete-time switched system -- Fault estimation -- Reduced-order observer -- Output feedback controller; Nonlinear functional analysis -- Periodicals; Analyse fonctionnelle non linéaire -- Périodiques; Nonlinear functional analysis; Periodicals; 515.7248
• DOI: 10.1016/j.nahs.2014.10.002
• Languages: English
• ISSNs: 1751-570X

Abstract

Abstract: This paper investigates the problem of dynamic output feedback fault tolerant controller design for discrete-time switched systems with actuator fault. 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. Then based on the obtained online fault estimation information, a switched dynamic output feedback fault tolerant 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.