Research on Battery SOC Estimation Algorithm for Energy Storage Power Station

Xiwen Liu, Songhan Wang, Ruicai Si, Jia Li, Zhongyan Wang, Zhuohong Yao


This paper takes the high-power lithium battery as the research object. The battery capacity is 40Ah. The state of charge (SOC) of lithium cannot be measured directly. We establish an equivalent circuit model of the battery and use Matlab/Simulink to simulate the equivalent circuit model of the battery. The simulation results and analysis show that the designed control strategy can accurately estimate the SOC of the battery and provide a theoretical basis for the designed algorithm in the practical application of energy storage power stations.


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