Grid-connected intelligent energy storage batteries are new-generation intelligent energy storage devices integrating energy storage, grid connection, intelligent regulation, and remote monitoring, specially designed for grid peak regulation, frequency modulation, new energy grid connection, and regional power balance. Different from conventional energy storage batteries, they support seamless grid connection operation and have bidirectional power regulation functions, which can not only absorb excess electric energy from the grid and new energy power stations for storage but also feed electric energy back to the grid in real time when the grid power supply is insufficient, effectively solving the problems of grid voltage fluctuation and unstable frequency caused by large-scale grid connection of photovoltaic, wind power and other intermittent new energy sources.

This type of battery is equipped with a highly intelligent energy management system and bidirectional power conversion system (PCS), which can realize automatic switching between grid-connected charging and grid-feeding power generation modes. The intelligent system can accurately predict grid power demand and new energy power generation output through big data algorithms, automatically adjust charge and discharge power and time, realize precise peak shaving and valley filling, and optimize grid energy distribution. Meanwhile, it supports remote data transmission and intelligent terminal control, enabling real-time viewing of battery operation status, grid connection data, and energy storage efficiency, and realizing unattended intelligent operation and remote fault diagnosis of the energy storage system.

In terms of system performance and safety, grid-connected intelligent energy storage batteries adopt modular design, which can be flexibly combined according to grid scale and energy storage demand, adapting to small regional grid adjustment and large-scale GWh-level grid energy storage stations. The multi-layer safety protection system includes thermal management, electrical protection, and fire prevention and explosion-proof design, ensuring safe and stable long-term grid-connected operation. In the new energy power system, these batteries play a key role in improving grid operation efficiency, reducing grid load pressure, improving new energy consumption rate, and promoting the stable and sustainable development of smart grid and new energy industry.