基于滤波的锂电池电热耦合特性建模

Modeling of Electro-Thermal Coupled Characteristics of Li-Ion Battery Based on Filtering

针对锂电池的电热耦合特性,根据产热机理,构造锂电池热模型,结合锂电池二阶Thevenin等效电路模型,构造电热耦合模型。考虑到模型误差和测量过程中的测量噪声,设计全对称多胞体滤波器,实现锂电池电热耦合特性建模。

According to the heat generation mechanism, a thermal model of the Li-ion battery is constructed, combined with the second-order Thevenin equivalent circuit model of the Li-ion battery, and an electrothermal coupled model is constructed for the electrothermal coupled characteristics of Li-ion batteries. Taking into account the model error and the measurement noise in the measurement process, a Zonotopic filter is designed to realize the modeling of the electrothermal coupling char-acteristics of the Li-ion battery.