Energy management of battery energy storage station considering system operation efficiency

Abstract

With the rapid development of new energy in recent years, battery energy storage system (BESS) is more and more widely used in power system. The inconsistency of single battery will have a great impact on the operation of BESS. At the same time, with the increase of the service time of the battery pack, this inconsistency will become greater and greater. Therefore, some strategies should be adopted for the energy management of BESS. Existing studies have not fully considered the operation efficiency of power conversion system (PCS). In this paper, the greedy algorithm model is used to solve the mathematical programming with the goal of the consistency of state of charge (SOC) on the basis of considering the operation efficiency of the system. The test results show that the method proposed in this paper can achieve good state of charge equalization effect.