Adaptive robust fault tolerant control design for a class of nonlinear uncertain MIMO systems with quantization. (May 2017)

• Record Type: Journal Article
• Authors: Ao, Wei; Song, Yongdong; Wen, Changyun
• Is Part Of: ISA transactions. Volume 68(2017:May)
• Page Start: 63
• Page End: 72
• Publication Date: 2017-05
• Subjects: Adaptive robust control -- Fault-tolerant control -- Actuation failure -- Quantization; Engineering instruments -- Periodicals; Engineering instruments; Periodicals; Electronic journals; 629.805
• DOI: 10.1016/j.isatra.2017.03.016
• Languages: English
• ISSNs: 0019-0578

Abstract

Abstract: In this paper, we investigate the adaptive control problem for a class of nonlinear uncertain MIMO systems with actuator faults and quantization effects. Under some mild conditions, an adaptive robust fault-tolerant control is developed to compensate the affects of uncertainties, actuator failures and errors caused by quantization, and a range of the parameters for these quantizers is established. Furthermore, a Lyapunov-like approach is adopted to demonstrate that the ultimately uniformly bounded output tracking error is guaranteed by the controller, and the signals of the closed-loop system are ensured to be bounded, even in the presence of at most m − q actuators stuck or outage. Finally, numerical simulations are provided to verify and illustrate the effectiveness of the proposed adaptive schemes. Abstract : Highlights: Compared with the existed works, a more general class of nonlinear MIMO systems are considered. Also, a novel strategy of quantization is adopted and can reduce the bandwidth of transmission channels. Theoretical analysis shows that the proposed schemes can ensure the track error ultimately uniformly bounded.