Multi-Agent Based SOC Equalization Control Strategy for Distributed Battery Energy Storage System

In the battery energy management system, it is important to maintain the consistency of state of charge (SOC). In this paper, a multi-agent based SOC equalization control strategy is proposed for power regulation in distributed battery energy storage system (BESS). Each agent is independently controlled and only exchanges data with neighboring agents, which greatly reducing computation and improving the fault tolerance and scalability. To improve the efficiency of SOC equalization, an optimization method considering energy loss and equalization time is presented. Simulation results show that the multi-agent based SOC equalization control strategy proposed in this paper can reduce the energy loss and equalization time, and effectively cope with some system failures.