Adaptive Fuzzy Output-Feedback Tracking Control for a Class of Switched Stochastic Nonlinear Time-Delay Systems

作者：Liu, Yanli; Niu, Ben^*; Chu, Fei; Liu, Yanyan

来源：Circuits, Systems, and Signal Processing, 2016, 35(8): 2762-2788.

DOI：10.1007/s00034-015-0174-6

• Switched stochastic systems
• Adaptive fuzzy control
• Output-feedback
• Time-delay
• Reduced-order observer

In this paper, a design scheme for an adaptive fuzzy tracking controller is proposed for a class of switched stochastic nonlinear time-delay systems via dynamic output-feedback. First, a reduced-order observer is introduced to estimate the unmeasurable states of the switched system. During the adaptive controller design procedure, an appropriate stochastic Lyapunov-Krasovskii functional deals with the time-delay terms, and fuzzy logic systems are employed to approximate the unknown nonlinearities. Based on the designed controller, the semi-globally uniform ultimate boundedness of all the closed-loop signals is guaranteed and the tracking error converges to a small neighborhood of the origin. Finally, a simulation example is given to illustrate the validity of the proposed approach.

• 出版日期2016-8
• 单位中国航发沈阳发动机研究所; 渤海大学; 中国矿业大学（北京）