Electronics Optics & Control, Volume. 29, Issue 12, 32(2022)

Novel Dynamic Surface Based Asymptotic Tracking Control for Systems with Unknown Time-Delay and Dead-Zone Input

ZHENG Xian and LIU Ye
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  • [in Chinese]
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    Aiming at a class of nonlinear systems with unknown time-delay and dead-zone inputs,an adaptive asymptotic tracking control algorithm based on novel dynamic surface is proposed.Firstly,a nonlinear filter with a positive time-varying integral function is constructed,which is different from the traditional low-order linear filter.It can not only avoid the problem of “differential explosion” and reduce the computational burden,but also effectively compensate for the boundary layer error.Secondly,the radial basis neural network and a new inequality are utilized to deal with the unknown nonlinear time-delay terms.Finally, the neural network error and the unknown parameters of the dead zone are estimated online.Theoretical analysis shows that the semi-global uniform boundedness of all signals in the closed-loop system is achieved and that the tracking error converges to zero.The simulation results have verified the effectiveness of the proposed control algorithm.

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    ZHENG Xian, LIU Ye. Novel Dynamic Surface Based Asymptotic Tracking Control for Systems with Unknown Time-Delay and Dead-Zone Input[J]. Electronics Optics & Control, 2022, 29(12): 32

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    Paper Information

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    Received: Oct. 10, 2021

    Accepted: --

    Published Online: Feb. 4, 2023

    The Author Email:

    DOI:10.3969/j.issn.1671-637x.2022.12.006

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