Distributed Event-Triggered Secondary Control of Islanded Microgrids Incorporating Battery Energy Storage Systems

This article proposes a Distributed Event-Triggered Scheme (DETS) as a new secondary control approach for AC heterogeneous autonomous Microgrids (MGs) comprising a diverse mix of both Distributed Generations (DGs) and Battery Energy Storage Systems (BESSs) subjected to switching communication topologies. The DETS employs combined triggering conditions aimed at enhancing convergence rates while minimizing triggering events. These conditions are derived from a Lyapunov stability analysis to calibrate event-triggering function parameters. Finally, extensive MATLAB/Simulink simulations are conducted to validate the efficiency and viability of the proposed DETS in regulating MG voltages and frequencies, achieving precise proportional active power sharing, and effectively balancing the State of Charge (SoC) in BESSs.