A Cost-Efficient Energy Management of EV Integrated Community Microgrid

The use of energy management in community microgrid is essential for load fulfillment and to cope up with the varying power output of renewable energy sources. Nowadays, electric vehicle is a good opportunity as it can act as both energy source and load according to optimum cost and available energy. If the systems have extra renewable energy, they can be utilized for EV charging. Scheduling of EV charging with respect to excess generated power and varying electricity prices is considered in this paper. The proposed system helps in energy management of community microgrid integrated with the residential EV charging points. The cost is optimized using biogeography-based optimization method with a given load profile, generated renewable energy, and real-time price of electricity. The limits of EV owner priority are also kept considered. The results show that with the higher electricity cost, EV is either kept idle or being charged with minimum charging rates, while for lower electricity cost, EV is charged with higher rates.