Journal of Electrical Engineering and Automation

With the advancement of the “dual carbon” goals and the large-scale integration of distributed renewable energy, PV-storage integrated microgrids—serving as autonomous station power supply systems for substations—are gradually becoming a key approach to enhancing the reliability and resilience of station service power supply. This model achieves a closed-loop coupling of source, load, and storage by organically integrating local photovoltaic generation and energy storage systems, enabling both peak shaving and valley filling, as well as dynamic stability of frequency and voltage through Virtual Synchronous Generator (VSG) control and Model Predictive Control (MPC) strategies. An intelligent Energy Management System (EMS) leverages PV output forecasting and load prioritization to optimize real-time charging and discharging of storage, enabling rapid response to islanded, grid-connected, and fault conditions. Looking ahead, the application of edge-intelligent control, hybrid energy storage, and high-performance power electronic conversion technologies will further enhance the self-regulation and economic performance of station power supply systems, providing robust support for the green and intelligent upgrading of modern power systems.

Microgrid; Photovoltaic Variability; Energy Storage System; Intelligent Scheduling