Summary of research on microgrid energy management system

The microgrid EMS(Energy Management System) is gradually becoming a research focus along with the continuous development of microgrid technology. Its domestic and foreign research status is summarized, its management objects, basic functions and design framework are analyzed. Two control structures of EMS, centralized and distributed, are elaborated and their advantages and disadvantages are analyzed. The basic model and algorithm of microgrid energy management are introduced. It is concluded that, three problems of microgrid energy management should be solved: the uncertainty of renewable energy resources and controllable loads, the optimal corporation of multiple energy storage technologies and joint dispatch, and the communication design and network security of microgrid EMS.