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http://dx.doi.org/10.18770/KEPCO.2016.02.01.115

Functional Properties of Stand-alone Microgrid EMS Application  

Lee, Ha-Lim (Department of Electronic and Electrical Engineering, Hongik University)
Chun, Yeong-Han (Department of Electronic and Electrical Engineering, Hongik University)
Chae, Wookyu (KEPCO Research Institute, Korea Electric Power Corporation)
Park, Jungsung (KEPCO Research Institute, Korea Electric Power Corporation)
Publication Information
KEPCO Journal on Electric Power and Energy / v.2, no.1, 2016 , pp. 115-119 More about this Journal
Abstract
For many past years, research in the operation of stand-alone Microgrid, which provides electric power generated from renewable energy sources and energy storage system instead of diesel generators, has been a major issue in order to prepare the exhaustion of fossil fuel and to protect environment, in island grids. Samso Island, known as the world's first stand-alone Microgrid in Denmark, is connected to the mainland grid through AC system, which has different technical conditions with Korea's isolated power system. Korea's first stand-alone Microgrid has been built in Ga-sa island, Chun-la-nam-do, based on Energy Management System (EMS) operation, and other islands are under construction to follow the next step. These stand-alone Microgrid's has large capacity of Battery Energy Storage System (BESS) and the proportion of the renewable energy sources are large, which makes it necessary to use a Microgrid-Energy Management System (MG-EMS) to operate the grid effectively and economically. However, since the main subject of MG-EMS is different from EMS, specific characteristics and functions must be different as well. In this paper, the necessary characteristics and functions are explained for a general MG-EMS compared to a large power system EMS.
Keywords
Stand-alone Microgrid; Microgrid EMS; renewable energy; Battery Energy Storage System;
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