Microgrid system is increasingly recognized in power system with the operational advantage of efficiency and flexibility. In order to make the microgrid stable reliable and economical

this paper established an energy management model of microgrid with the minimum cost as the optimization goal and following multiple constraints for a variety of distributed generation. First

taking into account of actual microgrid

this paper analyzes the operational economics of microgrid running on typical day in different season conditions. Last

this paper put forward a typical economical operation solutions of microgrid combined with actual situation. The results show that the model established in this paper is of good applicability and provides some theoretical guidance for the actual operation of the microgrid.