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首页> 外文会议>Symposium on batteries and energy technology joint general session;Meeting of the Electrochemical Society >Modeling of Lithium Iron Phosphate Batteries by an Equivalent Electrical Circuit: Part II -Model Parameterization as Function of Power and State of Energy (SOE)
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Modeling of Lithium Iron Phosphate Batteries by an Equivalent Electrical Circuit: Part II -Model Parameterization as Function of Power and State of Energy (SOE)

机译：等效电路对磷酸铁锂电池建模：第二部分-模型参数化作为功率和能量状态（SOE）的函数

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摘要

The modelling of Li-ion batteries may work as a powerful tool for the introduction and widespread testing of this technology in alternative energy storage, hybrid, and electric vehicle applications. The aim of this paper is to present a new parameterization method for the typical Equivalent Electrical Circuit (EEC) model of these batteries. The model parameters are determined as function of power and State of Energy (SOE) instead of current and State of Charge (SOC) respectively. This new method allows the simulations of Li-ion batteries subjected to power-controlled operation to be faster and more convergent. Here, the parameterization was based on a combination of Electrochemical Impedance Spectroscopy (EIS) method and charge/discharge curves analysis. The simulated and experimental results were compared, and it was demonstrated that the developed parameterization method provides accurate predictions of the dynamic behaviour of Li-ion batteries over wide SOE/SOC and working power range.
机译：锂离子电池的建模可以作为替代储能，混合动力和电动车辆应用中的这种技术的引入和广泛测试的强大工具。本文的目的是为这些电池的典型等效电路（EEC）模型提供一种新的参数化方法。模型参数被确定为能量和能量状态（SOE）而不是分别的电流和状态（SOC）。这种新方法允许对受电源控制操作进行锂离子电池的模拟，以更快，更加收敛。这里，参数化基于电化学阻抗光谱（EIS）方法和充电/放电曲线分析的组合。比较模拟和实验结果，并证明了开发的参数化方法提供了对宽SOE / SOC和工作功率范围的锂离子电池动态行为的准确预测。

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