Abstract
This paper describes the structure of energy storage system in smart grid, and analyzes the battery management system applied in the energy storage system. Battery temperature’s acquisition mode and the anti interference measures are studied. A battery state-of-charge (SOC) estimation method using the extreme accelerate correction method is proposed and the method is feasible to ensure the accuracy of SOC estimation. A battery voltage failure threshold table is constituted by extracting the important experimental data, and the safe using of the battery can be ensured by querying the threshold table. Now the battery management system could meet the needs of the actual operation of the battery energy storage system.
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