电站储能调频系统电池SOH估计算法应用研究

An Estimation Algorithm for Battery SOH of Energy Storage Power Station

对锂离子电池进行多次充放电试验,记录充放电试验的数据,根据这些记录的数据来分析电池的性能,寻找电池寿命的变化规律。根据试验数据建立电池寿命的数学模型,使用该模型预测电池的寿命。根据电池的充电电压曲线来估算电池的寿命,分析其效率、容量随电池寿命的变化规律。根据试验得到的数据,对使用的锂离子电池进行SOH估算,验证算法的准确性,分析电池寿命的估算结果。

This paper charges and discharges the lithium-ion battery and record the data.Then this paper analysis the performance of the battery to find the change law of battery SOH,then establishes the mathematical model of battery life according to the experimental data and predict the battery life by it,and estimate the SOH according to the charging voltage curve of the battery and analysis the efficiency and capacity.According to the experimental data,this paper estimates the SOH of the lithium-ion battery in this paper and verify the accuracy of the algorithm and the estimation results of battery life.