Fuzzy adaptive output feedback control for a class of switched non-triangular structure nonlinear systems with time-varying delays |
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Authors: | Leitao Huang Yongming Li Shaocheng Tong |
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Affiliation: | College of Science, Liaoning University of Technology, Jinzhou, Liaoning, P. R. China |
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Abstract: | This paper investigates an adaptive fuzzy output feedback control design problem for switched nonlinear system in non-triangular structure form. The discussed system contains unknown nonlinear dynamics, unmeasured states and unknown time-varying delays under a batch of switching signals. Fuzzy logic systems are utilised to learn unknown nonlinear dynamics and construct a fuzzy switched nonlinear observer. By combining the property of fuzzy basis function with Lyapunov–Krasovskii functional and the command filter, a novel observer-based fuzzy adaptive backstepping schematic design algorithm is presented. Furthermore, the stability of the closed-loop control system is proved via Lyapunov stability theory and average dwell time method. The simulation results are presented to verify the validity of the proposed control scheme. |
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Keywords: | Backstepping control switching systems fuzzy adaptive control non-triangular structure output feedback control time-varying delays |
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