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Grid modernization and large-scale integration of inverter-based resources (IBRs) into distribution systems have resulted in the development of new control strategies relying on information and communication technologies. To this end, this article proposes a distributed secondary control algorithm using an event-triggered mechanism for exchanging information among IBRs over digital communication channels in islanded modern microgrids. Unlike the existing event-triggered studies, the proposed method is based on a nonlinear mapping technique for encoding shared data over digital communication channels, making it suitable for real-world applications. It enables the control system to use digitized and encoded data instead of typical continuous analog information, resulting in the more efficient usage of communication infrastructures. As a result, it can be regarded as a practical algorithm for stabilizing voltage and frequency during the transient and steady-state response of autonomous modern microgrids considering computational constraints and the limited bandwidth of communication systems. Finally, comparative simulation studies and experimental results validate the performance and effectiveness of the proposed algorithm.
Afshari et al. (Thu,) studied this question.
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