Distributed self-triggered secondary control for islanded microgrids

Abstract

This paper develops a distributed secondary frequency/voltage controller via a self-triggered mechanism to solve a class of communication redundancy problems of islanded microgrids. Different from some existing distributed controllers with the event-triggered mechanism, the self-triggered controller designed in this brief effectively avoids continuous computations of trigger functions, where the next trigger instant can be predetermined through the calculation at the current trigger instant. Finally, the theoretical analysis and numerical simulations are presented to verify the effectiveness of the proposed secondary controller.