Design and Practice of Energy Management for Ubiquitous Microgrid

Aiming at the problems of large-scale photovoltaic construction and access in the county and the lack of control of existing distributed energy, this paper puts forward the construction and operation control method of ubiquitous microgrid, extracts a three-level and two-stage coordination and interaction system supported by county level core area, coordination control unit and multi type microgrid, and the related key technologies are studied and applied. Combined with the actual situation of a county in Zhejiang Province, the construction of the actual system is carried out, the construction of the green power ubiquitous microgrid energy management system is completed, and the problems such as the division of coordination control unit, the cluster dispatching of distributed energy, the analysis of microgrid characteristics and the mutual assistance between microgrids are explored, which effectively improves the elastic space of active distribution network and increases the control ability of power grid dispatching on distributed energy.