The medium-sized energy storage system is an energy storage system independently developed by Jingli and applied in industrial and commercial scenarios. It can directly connect to the AC low-voltage side to provide reliable power support for all kinds of equipment and systems. The energy storage system uses lithium iron phosphate battery with energy density High, long cycle life, the cabin adopts outdoor cabinet design, flexible expansion, convenient system maintenance and repair. The cabinet is configured locally Data monitoring, integrated management of equipment in the system, independent control, but also access to the station level control system, to achieve multi-machine connection Move. By monitoring the state of equipment in the cabinet and recording data, early warning and rapid positioning of system failure are realized. Energy storage system With intelligent temperature control function, can improve system efficiency and battery cycle life; Modular design is easy to system expansion and flexible adjustment.