基于单体间流量不均匀性的液流电池性能预测方法

公开了一种基于单体间流量不均匀性的液流电池性能预测方法，方法中，数值计算电堆内部流场并得到各单体流量分配；将各单体分别等效成独立电路并串联成电堆等效电路；开展等温样本实验获得各单体响应曲线，利用遗传算法对各单体等效电路进行参数辨识；基于能量守恒建立液流电池系统的温度场模型；基于修正能斯特方程将电堆等效电路模型与温度场模型耦合；开展非等温样本实验并对温度场模型进行参数辨识；将得到的完整耦合模型用于预测不同工况下液流电池性能响应情况。本发明综合考虑液流电池单体间流量不均匀性、钒离子跨膜运输和产热对电池运行状态影响，准确高效地计算输出电压、运行温度及荷电状态，指导液流电池安全运行。 The inve...

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Bibliographic Details
Format Patent
LanguageChinese
Published 04.07.2025
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:公开了一种基于单体间流量不均匀性的液流电池性能预测方法，方法中，数值计算电堆内部流场并得到各单体流量分配；将各单体分别等效成独立电路并串联成电堆等效电路；开展等温样本实验获得各单体响应曲线，利用遗传算法对各单体等效电路进行参数辨识；基于能量守恒建立液流电池系统的温度场模型；基于修正能斯特方程将电堆等效电路模型与温度场模型耦合；开展非等温样本实验并对温度场模型进行参数辨识；将得到的完整耦合模型用于预测不同工况下液流电池性能响应情况。本发明综合考虑液流电池单体间流量不均匀性、钒离子跨膜运输和产热对电池运行状态影响，准确高效地计算输出电压、运行温度及荷电状态，指导液流电池安全运行。 The invention discloses a flow battery performance prediction method based on flow non-uniformity among monomers, and the method comprises the steps: carrying out the numerical calculation of an internal flow field of a galvanic pile, and obtaining the flow distribution of each monomer; enabling the monomers to be equivalent to independent circuits and serially connecting the independent circuits to form a galvanic pile equivalent circuit; carrying out isothermal sample experiments to obtain response curves of all the monomers, and carrying out parameter identification on equivalent circuits of all the monomers by utilizing a genetic algorithm; establishing a temperature field model of the flow battery system based on ener
Bibliography:Application Number: CN20231027639