Adaptive fuzzy control for unknown nonlinear time-delay systems with virtual control functions |
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Authors: | Guo Tao Liu Guoying |
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Affiliation: | 1.Tao Guo and Guoying Liu are with the School of Computer and Information Engineering, Anyang Normal University, Anyang, 455002, P. R. China ; |
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Abstract: | In this paper, adaptive fuzzy control is presented for a class of unknown nonlinear timedelay systems with virtual control
functions. By employing fuzzy logic systems and the technique of delay replacement, dynamic surface control (DSC) design approach
can be carried out with both unknown delay signals and nonlinearities. This is different from the existing results, which
are used to make limitations on the time-delays. It is proved that the proposed design method is able to guarantee semiglobal
uniform ultimate boundedness (SGUUB) of all signals in the closed-loop system, with arbitrary small tracking error by appropriately
choosing design constants. |
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Keywords: | |
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