Quantized Synchronization Control of Networked Nonlinear Systems: Dynamic Quantizer Design With Event-Triggered...

Area of Science:

• Control Systems Engineering
• Networked Systems
• Nonlinear Dynamics

Background:

• Networked nonlinear systems face challenges with limited energy and channel resources.
• Event-triggered control (ETC) and input quantization are crucial for resource-constrained systems.
• Existing methods may only achieve quasi-synchronization, not exact synchronization.

Purpose of the Study:

• To investigate quantized control for synchronizing networked nonlinear systems.
• To develop a dynamic quantizer for achieving exact synchronization.
• To propose a distributed Zeno-free ETC strategy using the dynamic quantizer.

Main Methods:

• Introduction of a dynamic quantizer with online parameter adjustment and finite range.
• Development of a distributed Zeno-free event-triggered control (ETC) strategy.
• Application of Lyapunov methods to derive synchronization criteria.
• Consideration of scenarios with and without network topology information.

Main Results:

• The dynamic quantizer enables exact synchronization, surpassing quasi-synchronization.
• A novel distributed Zeno-free ETC strategy is proposed.
• Synchronization criteria are derived for systems with and without network topology information.
• Numerical examples validate the effectiveness of the proposed theoretical results.

Conclusions:

• The proposed dynamic quantizer and ETC strategy effectively achieve exact synchronization in networked nonlinear systems.
• The approach is robust to resource limitations and network uncertainties.
• The findings offer practical solutions for real-world networked control applications.