Distributed Collaborative Control of Reconfigurable Battery Energy Storage Based on Consensus Algorithms

To enhance the high-reliability operation capability of reconfigurable battery energy storage systems, a distributed cooperative control method of reconfigurable battery energy storage based on consensus algorithms is proposed in this paper, which can improve the frequency and power characteristics of the system. Firstly, the mathematical model of virtual synchronous generator(VSG) control, the structure of reconfigurable battery energy storage system, and the parallel VSG distributed architecture are introduced; Secondly, combined with the mathematical model of VSG control, the overall scheme of frequency recovery and power output reasonable distribution of VSG parallel system is designed; Then, according to the structural characteristics of reconfigurable battery energy storage, a battery pack reconfiguration strategy is proposed, which can meet the power output demand through the free combination of battery packs; Finally, a simulation model is built in Matlab/Simulink environment, and the simulation results verify the correctness and effectiveness of the proposed method.