Dynamic Economic and Emission Dispatch of Large Scale Renewable Integrated Microgrids for Varying Loads and Seasons

Optimal sizing of distributed generation sources for a microgrid is very essential for proper functioning of the microgrid when minimization of the energy cost and pollutants emission are of prime concern. This paper deals with three different cases of cost and emission minimization each for two microgrid test systems consisting of fuel cell, micro-turbine, storage devices and renewable energy sources. A proposed symbiotic organism search algorithm is used as the optimization tool to minimize the microgrid operating cost and emission abiding by the various equality and inequality constraints and considering load uncertainties and market bids. A comparative study is then made to prove the efficiency of the proposed algorithm with various other techniques used in literature.