Distributed control techniques for autonomous AC Microgrid-A brief review

© 2017 IEEE. Distributed generation (DG) is performing progressively significant part in modern power systems. The main objective of this research is to provide a brief review of distributed control structures used so far to control an autonomous AC microgrid system. The distributed control for both grid-connected and autonomous microgrid is current developments for their several advantages compared to conventional central control system comprising the system trustworthiness, lessening its sensitivity to failures, and removing the necessity for a central computing and communication unit. The complete control scheme is divided into three basic control levels, such as primary, secondary and tertiary control level and control structures are considered here for autonomous operation mode. Trends and different approaches used until now, in above control levels are distinctly stated for understanding a brief overview