With the advent of distributed energy sources in low voltage distribution systems, direct power supply through these sources to local loads as microgrids is becoming a reality. Different microgrid architectures will appear in near future. Microgrids can be operated in an islanded or grid connected modes. Different control techniques will be implemented for smooth operation of microgrids. The objective of this special topic is to address and disseminate state-of-the-art R&D results on microgrids to bring together researchers from both academia and industry with the goal of fostering interactions among stakeholders. This special topic provides a timely overview of various research topics on microgrids. We have 7 high-quality papers in this special topic.