Optimization and Energy Consumption Analysis of the Cooling System for Energy Storage Electric Cabinets

The development of energy storage is an important element in constructing a new power system. However, energy storage batteries accumulate heat during repeated cycles of charging and discharging. If this heat is not managed properly, the energy storage cabinet can reach a certain temperature threshold and explode. To prevent this from happening, it's essential to design and develop battery cooling systems. Currently, four cooling methods are available for batteries: air cooling, heat sink liquid cooling, secondary loop liquid cooling, and refrigerant two-phase cooling. In this article, we explore the use of the secondary loop liquid cooling scheme and the heat sink liquid cooling scheme to cool the energy storage cabinet. Mathematically model the evaporator, condenser, compressor in the secondary loop cooling system, as well as the fan in the liquid cooling system, and perform simulation in MATLAB software. This study analyzed the energy consumption comparison between using only the secondary loop liquid cooling scheme and a mixed scheme incorporating two cooling methods. The study also examined the output of each component in the mixed system. The results indicate that the mixed cooling system is more energy-efficient compared to a single cooling system.