This paper provides a comprehensive overview of the microgrid (MG) concept, including its definitions, challenges, advantages, components, structures, communication systems, and control methods, focusing on low-bandwidth (LB), wireless (WL), and wired control approaches. eld in Finland and the EU. Yl microgrid configurations. Finally, the increasing use of AI communication constraints. Power for the entire system can be monitored and controlled from a rict Helsinki/???? ??????? (??????)???????? ?????????????????????High penetration of Renewable Energy Resources (RESs) introduces numerous challenges into the Microgrids (MG), such as supply–demand imbalance, non-linear loads, voltage instability, etc. Depending on the responsibilities assumed by the different control levels, the microgrid can be controlled in. SEL is the global leader in microgrid control systems, verified by rigorous independent evaluations and proven by 15+ years of performance in the field. Some models exist which describe the components of the Microgrid. Our researchers evaluate in-house-developed controls and partner-developed microgrid components using software modeling and hardware-in-the-loop evaluation platforms.