A Periodic Event-Triggering Reactive Power Sharing Control in an Islanded Microgrid considering DoS Attacks

This paper addresses the reactive power sharing problem of the microgrid under DoS (Denial-of-Service) attacks. An accurate reactive power sharing based on a periodic event-triggered update method is proposed, which can reduce some communication burden and avoid the Zeno phenomenon. Considering that attackers may launch DoS attacks on the MG, the tolerance of DoS attacks of the reactive power control system is studied. We find that the tolerance range of DoS frequency and duration for the DG is related to the smallest event-interval time of the event-triggered update method. The relative simulation results are given in the final of this paper.