一种动力电池动态特性建模

A Modeling Method for Power Battery Dynamics

为了对动力电池进行有效管理,首先需要准确地建立动力电池的动态特性模型。提出了一种动力电池动态特性的工程性建模方法。该方法基于电池内部物理化学动态机理及非线性恒流特性,核心为一个由恒流特性曲线和等效电路模型组成的动态特性模型以及一套获取该模型参函数的实验方法和数据处理方法。实验结果表明,相比于已有方法,该文方法具有准确度高、适应性广及更加易于工程实施的特点。

Battery ＇s dynamics need to be modeled accurately for effective battery management. A nengineering modeling method for power battery dynamics is proposed. This method is based on the internal physical-chemical mechanism of the battery dynamics and the nonlinearity of battery ＇s constant current characteristics. The core of the proposed method includes a model consisting of a constant current curve and an equivalent circuit model, and a set of procedures, i. e. battery test and data processing, for obtainingthe modelparameters. Compared with existing methods, the proposed method has better accuracy and wider applications,and is easier to be implemented.