Adaptive neural network output tracking control of uncertain switched nonlinear systems: An improved multiple Lyapunov function method

Dong Yang, Guangdeng Zong, Yanjun Liu, Choon Ki Ahn

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    For a class of uncertain switched nonlinear systems, the adaptive neural network(NN) output tracking control problem is investigated by using the neural network technique in this paper. The considered switched nonlinear systems involve unknown control coefficients, external disturbances, and unmodeled dynamics merged in the full-states. An improved multiple Lyapunov function method is developed through relaxing the traditional multiple Lyapunov function conditions. A feasible state-dependent switching signal and an adaptive NN output tracking switching controller are designed such that the output tracking error converges to an arbitrarily small neighborhood of the origin, and all the signals in the closed-loop system remain within a bounded region. It is proved that the positive definiteness of Lyapunov functions and the solvability assumption of the adaptive NN output tracking control problem for all the subsystems are unnecessary. An application example of the mass-spring-damper system and a numerical example are given to illustrate the effectiveness of the proposed algorithm.

    Original languageEnglish
    Pages (from-to)380-396
    Number of pages17
    JournalInformation Sciences
    Volume606
    DOIs
    Publication statusPublished - 2022 Aug

    Bibliographical note

    Funding Information:
    This work was partially supported by the National Natural Science Foundation of China under Grant 61803225, Grant 61773235, Grant 61903261, Grant 61973147 and Grant 62173205, partially by the Natural Science Foundation Program of Shandong Province under Grant ZR2020YQ48, partially by the National Key R & D Program of China under Grant 2021YFE0193900, and partially by the Taishan Scholar Project of Shandong Province under Grant TSQN20161033.

    Publisher Copyright:
    © 2022 Elsevier Inc.

    Keywords

    • Adaptive neural network
    • Backstepping
    • Multiple Lyapunov functions
    • Switched nonlinear systems
    • Tracking control

    ASJC Scopus subject areas

    • Software
    • Control and Systems Engineering
    • Theoretical Computer Science
    • Computer Science Applications
    • Information Systems and Management
    • Artificial Intelligence

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