GA-based optimal sizing of microgrid and DG units under pool and hybrid electricity markets

In this paper an optimized design of micro-grid (MG) in a distribution system based on combination of photovoltaic array, fuel cell and battery bank with multiple DG units under hybrid electricity market model has been presented and so the results has been compared with results of pool electricity market. In this research, GA-based optimization method is used to obtain optimum power and price of the MG. Then, an objective function based on the total net present worth is considered and GA is employed to obtain the maximum net present worth of the MG, during interconnected operation by optimizing the production of local DGs and power exchanges with the main distribution grid. (C) 2011 Elsevier Ltd. All rights reserved.