Distributed Event-triggered Secondary Control for Average Bus Voltage Regulation and Proportional Load Sharing of DC Microgrid

This paper proposes a novel distributed event-triggered secondary control method to overcome the drawbacks of primary for direct current (DC) microgrids. With communication, proposed can achieve system-wide parallel distrubted generators (DGs) with two main objectives: ① estimate average bus voltage and regulate it at nominal value; ② accurate sharing among DGs in proportion their power output ratings. Furthermore, strategy be implemented way that shares required tasks DGs. Thus, shows advantages being flexible scalable. this simple condition does not need extra state estimator. limited communication neighbors is only when satisfied, which significantly reduces burden cyber layer.