Power Management Strategies for Islanding and Grid-Connected DC Microgrid Systems with Multiple Renewable Energy Resources

DC microgrids can be created by integrating renewable energy resources at the distribution level. There are numerous advantages to using a grid-connected microgrid to meet the rising electricity demand. An isolated DC microgrid with solar PV arrays, wind turbines, and battery energy storage systems is shown to be connected to the grid in this study. The AC/DC bi-directional converter linked to the DC microgrid serves as the primary control for the Master controller. The PWM signal generated by the transformations is used to start and change the converter's mode of operation. Batteries can be used as a slave to the grid's power management in a DC microgrid. The case study of Islanding and Grid-connected are analyzed and simulated using MATLAB/Simulink. The study's findings offer some preliminary pointers for achieving long-term well-being. In order to achieve the best possible power system goals, a variety of factors may need to be carefully considered.