Unlike the phasor measurement-based protection in ac systems, of dc systems deals with complex fault transients which mandate isolation faulted segment within few milliseconds as continued current leads to overheating issue power electronic converters. To this end, several works have been suggested-based on unit and nonunit protections for microgrids. Threshold selection coordination are challe...

In this work, a novel nonlinear approach is proposed for the stabilization of microgrids (MGs) with constant power loads (CPLs). The method constructed based on incorporation pseudo-extended Kalman filter (EKF) into stochastic model predictive control (MPC). order to achieve high-performance and optimal in dc MGs, estimating instantaneous flow uncertain CPLs available units essential. Thus, by ...

Fault detection in microgrids presents a strong technical challenge due to the dynamic operating conditions. Changing power generation and load impacts current magnitude direction, which has an adverse effect on microgrid protection scheme. To address this problem, paper addresses field-transform-based fault method immune The faults are simulated via Matlab/Simulink model of grid-connected phot...

Microgrids can operate both in grid-connected and islanded modes. It is essential to protect microgrids against all types of faults in both of the operation modes. Conventional overcurrent protection schemes are not adequate for microgrids due to bidirectional flow of fault current and limited flow of fault current through semiconductor devices. In addition, the setting values of all the concer...