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Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
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Dynamic Event-Triggered Model Reference Adaptive Control for Uncertain Switched Systems.

Dong Yang, Qi Zhang, Guangdeng Zong

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    Summary
    This summary is machine-generated.

    This study introduces a dynamic event-triggered adaptive control for uncertain switched systems. It ensures stable tracking and avoids Zeno behavior, improving control efficiency.

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    Area of Science:

    • Control Systems Engineering
    • Adaptive Control Theory
    • Switched Systems Dynamics

    Background:

    • Model reference adaptive tracking control is crucial for uncertain switched systems.
    • Existing methods face challenges in simultaneous dynamic event-triggering for adaptive laws and controllers.
    • Achieving Zeno-free behavior while ensuring tracking performance is a significant hurdle.

    Purpose of the Study:

    • To address the model reference adaptive tracking control problem for uncertain switched systems.
    • To develop a novel dynamic event-triggered approach for adaptive laws and controllers.
    • To guarantee Zeno-free operation and bounded system signals.

    Main Methods:

    • A multiple Lyapunov function method is employed for controller and adaptive law design.
    • A switching dynamic event-triggered mechanism is proposed for simultaneous triggering.
    • State-dependent switching signals ensure system stability and performance.

    Main Results:

    • The dynamic event-triggered mechanism ensures a positive lower bound on inter-execution time, preventing Zeno behavior.
    • All signals in the error dynamic system are proven to be bounded.
    • The system state asymptotically tracks the desired reference model state.

    Conclusions:

    • The proposed dynamic event-triggered adaptive control strategy is effective for uncertain switched systems.
    • The method successfully achieves model reference adaptive tracking while ensuring Zeno-free operation.
    • Validation through an electro-hydraulic system example demonstrates the practical applicability of the strategy.