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|Title:||Adaptive fuzzy output-feedback controller design for nonlinear time-delay systems with unknown control direction|
|Keywords:||Adaptive fuzzy approach|
|Citation:||Hua, C.-C., Wang, Q.-G., Guan, X.-P. (2009). Adaptive fuzzy output-feedback controller design for nonlinear time-delay systems with unknown control direction. IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics 39 (2) : 363-374. ScholarBank@NUS Repository. https://doi.org/10.1109/TSMCB.2008.2005204|
|Abstract:||In this paper, the robust-control problem is investigated for a class of uncertain nonlinear time-delay systems via dynamic output-feedback approach. The considered system is in the strict-feedback form with unknown control direction. A full-order observer is constructed with the gains computed via linear matrix inequality at first. Then, with the bounds of uncertain functions known, we design the dynamic output-feedback controller such that the closed-loop system is asymptotically stable. Furthermore, when the bound functions of uncertainties are not available, the adaptive fuzzy-logic system is employed to approximate the uncertain function, and the corresponding output-feedback controller is designed. It is shown that the resulting closed-loop system is stable in the sense of semiglobal uniform ultimate boundedness. Finally, simulations are done to verify the feasibility and effectiveness of the obtained theoretical results. © 2008 IEEE.|
|Source Title:||IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics|
|Appears in Collections:||Staff Publications|
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