Optimal energy management of Microgrid based on FCCHP in the presence of electric and thermal loads considering energy storage systems

Abstract

Due to high investment costs of centralized power plants and augmentation in environmental pollutions, the use of Distributed Generations and renewable energy resources has increased rapidly. Recently, the use of FCPP and CHP generation units in microgrids and distribution systems has been attracted a lot of attention. PEM is an appropriate choice due to the fast start-up, high power density, low operating temperature, low air and sound pollution. In this paper, an optimal energy management of microgrid considering energy storage systems and the comprehensive model of PEM fuel cell units along with renewable energies such as wind and photovoltaic is investigated in two cases. The results show that the thermal power generated by FC increases proportionally to supply the demand and total operating cost is reduced by 8.65% compared to the case without thermal power of FC. The problem has been solved by BONMIN solver using General Algebraic Modeling System (GAMS) optimization package. Keywords: Microgrid, Fuel Cell, Energy management, Renewable Energy Resources, small-scale CAES,