摘要
Thevenin等效电路模型是锂电池模型中应用最多的方式之一,常用于Kalman滤波估计荷电状态(SOC)的算法中,研究对Thevenin等效电路模型进行了动态改进,使其能更准确地反映电池的实际工作状态,弥补了模型内部参数皆为固定的缺点,在MAT LAB工具下对电池模型进行了实现和仿真验证,证明可利用此模型进行下一步的锂电池SOC估算。
The Thevenin equivalent circuit model is widely used among various lithium battery models,and often used in the algorithm of Kalman filter to estimate SOC.The dynamic improvement of Thevenin equivalent circuit model is studied to make it more accurately reflect the actual working state of the battery,which makes up for the fixed internal parameters of the model.The battery model is realized and simulated in MATLAB,which proves that the next SOC estimation of lithium battery can be carried out by using this model.
作者
严利民
陈佳雯
Yan Limin;Chen Jiawen(Microelectronics Research and Development Center,Shanghai University,Shanghai 200444)
出处
《电动工具》
2020年第3期1-4,8,共5页
Electric Tool
基金
国家自然科学基金(61674100)。
关键词
锂电池
等效模型
卡尔曼滤波
荷电状态
Lithium battery
Equivalent model
Kalman filter
State of charge
