A review on microgrid central controller

The microgrid central controller has most important role for satisfactory automated operation and control of microgrid while working in grid connected and islanded modes. The central controller has several features for proper coordination of distributed energy resources as per their power generation capacity to serve the critical and non-critical loads. It also initiates the protection techniques at the time of occurrence of severe short circuit fault at the grid end or in microgrid thus ensuring stability and reliability. This paper presents a comprehensive literature review on microgrid central controller. The evolution and advancement of microgrid central controller technology is explored and presented in a compact form. The classification of microgrid central controllers is proposed based on the outcomes found in the process of review. The role of central controller in the domains of microgrid protection, stability and power quality are also explored and summarized. This literature review may be considered as an initial platform for research work on microgrid central controller. (C) 2015 Elsevier Ltd. All rights reserved.