摘要
考虑库伦效率对锂离子电池荷电状态(SOC)预测的影响,基于改进的安时积分法,在建立的等效电池模型基础上,利用开路电压法和扩展卡尔曼滤波相结合的方法,对锂电池荷电状态进行有效估计。实验证明,文中提出的改进算法可以提高SOC估算的精度。
Considering the influence of Coulomb efficiency on the SOC prediction of lithium-ion batteries,based on the improved time-integration method,the method of combining the open-circuit voltage method with extended Kalman filter was proposed based on the equivalent battery model. The charge state of lithium battery was effectively estimated. Experiments showed that the proposed algorithm can improve the accuracy of SOC estimation.
出处
《通信电源技术》
2017年第1期45-47,共3页
Telecom Power Technology
关键词
库伦效率
电池荷电状态
电池模型
卡尔曼滤波算法
Coulomb efficiency
battery state of charge
battery model
Kalman filter algorithm
