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水系非对称电极超级电容器的建模研究

, PP. 12-17

Keywords: 超级电容器,二分支网络模型,电路分析法,参数辨识,动态特性

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Abstract:

为能更准确地描述水系非对称电极超级电容器在工作过程中的电气外特性,通过借鉴有机系双电层电容器二分支网络建模的方法,在深入分析水系非对称电极超级电容器储能原理与外特性的基础上,提出一种适用于该类型超级电容器的模型及其参数辨识方法。本文采用“电路分析法”对二分支网络模型中的参数进行辨识,在MATLAB/Simulink环境下利用实验数据对经典等效电路模型和二分支网络模型进行仿真比较。结果表明,二分支网络模型具有更高的精度,可以更精确地反应水系非对称电极超级电容器的动态特性。

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