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Event-Triggered Communication-Based Control for Strict-Feedback Nonlinear Systems.

Shuai Liu, Jing Zhang, Xianfu Zhang

IEEE Transactions on Cybernetics

|April 27, 2022

Summary

This summary is machine-generated.

This study introduces event-triggered communication for nonlinear systems, reducing data transmission and preventing Zeno behavior. The proposed method ensures system stability by jointly designing the controller, observer, and triggering mechanism.

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Area of Science:

Control Systems Engineering
Nonlinear Dynamics
Communication Systems

Background:

Event-triggered communication reduces data transmission in control systems.
Strict-feedback nonlinear systems with measurement outputs present control challenges.
Zeno behavior must be avoided in event-triggered systems.

Purpose of the Study:

To investigate event-triggered communication control for strict-feedback nonlinear systems with measurement outputs.
To design novel event-triggered communication schemes that minimize data transmission.
To ensure system stability and exclude Zeno behavior.

Main Methods:

Developed two event-triggered communication schemes.
Designed an observer for state estimation due to unavailable full-state information.
Jointly designed parameters for the state observer, controller, and event-triggering mechanism.
Excluded Zeno behavior under the proposed triggering schemes.

Main Results:

Measurement output and control input signals are transmitted only at triggering instants, saving communication costs.
The closed-loop system state is proven to converge to the origin.
A simulation example validated the theoretical results.

Conclusions:

The proposed event-triggered communication control strategy is effective for strict-feedback nonlinear systems.
Joint design of observer, controller, and triggering mechanism is crucial for performance.
The method successfully reduces communication load while maintaining system stability.