Resilient Secondary Voltage Control of Islanded Microgrids: An ESKBF-Based Distributed Fast Terminal Sliding Mode Control Approach

This paper proposes a distributed secondary voltage control method based on extended state Kalman-Bucy filter (ESKBF) and fast terminal sliding mode (FTSM) for the resilient operation of an islanded microgrid (MG) with inverter-based generations (DGs). To tackle co-existence multiple uncertainties, unified modelling framework is proposed to represent set different types disturbances, including parameter perturbation, measurement noise, immeasurably external variables, by method. then applied accurately estimate information DG model. In addition, accurate estimation, surface attractors designed maintain system stability accelerate convergence consensus tracking, which significantly improves performance under both normal plug-and-play operation. Finally, case studies are conducted in MATLAB/Simulink experimental testbed demonstrate effectiveness