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Estimation-based event-triggered fixed-time fuzzy tracking control for high-order nonlinear systems

Author

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  • Zhai, Junchang
  • Wang, Huanqing
  • Qin, Yuping
  • Cui, Hongxia

Abstract

This paper investigates adaptive-estimation-based dynamic event-triggered fuzzy tracking control scheme for high-order nonlinear systems in fixed-time interval. The growing assumptions of coexistence unknown nonlinear uncertainties are removed with the aid of fuzzy logic systems. Contrary to the existing results, an adaptive estimation tactic is formulated to estimate the severe coexistence uncertainties online such that no boundaries are needed for the adaptive parameters, despite approximation errors, unknown virtual control gains and time-varying disturbances. On this estimation mechanism, the virtual control gains have been relaxed to unknown, which is more applicable. In view of controller and actuator, the communication burden is reduced with the aid of dynamic event-triggered rule, and Zeno behavior can be prevented successfully during dynamic sampling and updating of the control signal. Moreover, the singularity problem has been conquered by using the inequality transformation technique and all signals are bounded in fixed-time interval. Finally, two examples are used to verify the feasibility and rationality.

Suggested Citation

  • Zhai, Junchang & Wang, Huanqing & Qin, Yuping & Cui, Hongxia, 2025. "Estimation-based event-triggered fixed-time fuzzy tracking control for high-order nonlinear systems," Applied Mathematics and Computation, Elsevier, vol. 486(C).
    • Handle: RePEc:eee:apmaco:v:486:y:2025:i:c:s0096300324005186
    DOI: 10.1016/j.amc.2024.129057
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