The energy storage system is composed of multi-level core equipment, aiming to achieve the storage, conversion, and intelligent management of electrical energy. The core products include: the Energy Management System (EMS), acting as the system's brain, responsible for panoramic monitoring, advanced control, energy management, and intelligent operation and maintenance; the Power Conversion System (PCS), which realizes bidirectional conversion between AC and DC power, supporting both grid-connected and islanded operation; the Energy Storage Coordination Controller, responsible for the rapid coordinated control of multiple PCS units within the station, executing millisecond-level instructions such as primary frequency regulation and dynamic voltage regulation; and the Microgrid Central Controller, used for coordinated control among multiple power sources (such as photovoltaic and energy storage) and loads in microgrid scenarios, achieving seamless grid-connected/islanded switching. It provides diverse value for the generation side, grid side, and user side, including peak shaving, frequency regulation, peak load shifting and valley filling, new energy consumption, and emergency backup.