Photovoltaic micro-grid energy management system

The invention relates to the technical field of power grid management, in particular to a photovoltaic micro-grid energy management system which comprises a charging port, a discharging port, a power generation port and a power utilization port which form a micro-grid, the micro-grid further comprises a power generation unit, an energy storage unit and a power utilization unit, and the micro-grid further comprises a power generation and supply end and a load power utilization end. The micro-grid further comprises a real-time database and a historical database, and the real-time database and the historical database are electrically connected with an SCADA data acquisition and monitoring system together. According to the invention, a microgrid energy management software and hardware system of hierarchical management and control can be constructed in cooperation with the demands of microgrid 500kVA-level self-synchronizing voltage source inverter parallel operation dynamic characteristic research and photovoltai