Island Operation Control Strategy For Bess In Parallel Based On Droop Control

During island operation, Micro-grid requires that battery energy storage systems in Parallel can distribute power reasonably. As load increases, the energy storage system needs to expand capacity, while reducing power consumption, and realizing the plug and play technology. Based on droop control, this paper analyzed the factors that affect the power sharing when the energy storage system is connected in parallel, and designed the method of proportionally distributing the power of the energy storage system. Finally, this paper established the simulation model under Matlab/Simulink, and hardware-in-the loop experiments were build on the RT-LAB platform. The simulation and experimental results are provided to verify the effectiveness of the proposed control strategy.