Dynamic event-triggered fixed-time secondary control of islanded microgrids

Conventional microgrids that employ droop control may experience challenges related to frequency and voltage offsets, which can pose risks to power system safety. Furthermore, the use of continuous communication in traditional control systems can result in technical and financial challenges. This paper introduces a fixed-time dynamic event-triggered secondary control for islanded microgrids, designed to achieve frequency restoration, voltage regulation and active power sharing within a specified timeframe. This distributed control approach relies solely on information from each distributed generator(DG) and its neighbours. Each DG receives communication from its neighbours and concurrently broadcasts its own information only when certain deviation were reached, thereby minimising communication costs. Several simulated instances illustrate the usefulness and robustness of this control method, including scenarios involving load changes, time delay and topology switching.