Fully Distributed Event-Triggered Secondary Control for Islanded Microgrid Restoration With Communication Link Faults

In this paper, we consider the islanded microgrid restoration with communication link faults, where faults refer to certain classes of data manipulation attacks. To compensate for the impact of faults in communication links on microgrid stability, a distributed adaptive event-triggered compensator with adaptive parameters has been designed. This avoids the use of global information and reduces communication redundancy. To achieve voltage and frequency recovery, an distributed secondary control strategy is proposed. Using Lyapunov stability theorem, it is proved that the proposed method is effective in counteracting the primary control bias that exists in islanded microgrids in the presence of communication link faults and limited computational resources. The main advantage of our method is the scalability and resilience. Finally, the paper presents the results of a simulation test of an islanded microgrid consisting of four DGs with faults in communication links. These results show that the proposed secondary control strategy is effective.