Distributed Event-Triggered Coordinated Voltage-Constrained and Current-Sharing Control for Islanded DC Microgrids

DC microgrids can effectively integrate distributed renewable energy and local energy storage, which is essential for developing smart power systems. To address the challenges posed by inherent renewable energy and ensure reliable load operation, the distributed event-triggered controllers are designed to stabilize output voltages within a specific range and ensure proportional current sharing. Each distributed generator communicates with its neighbors only at designed event times, thereby reducing communication resource demands. Theoretical analysis shows that this strategy achieves asymptotic convergence of the system, and experimental results further validate its effectiveness.