Simple model of an electrolytic capacitor taking into account the temperature and aging time
Simple model of an electrolytic capacitor taking into account the temperature and aging time
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DOI：
10.1007/s00202-004-0265-z
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发表时间：
2006
影响因子：
1.8
通讯作者：
F. Perisse;Pascal Venet;G. Rojat;J. Retif
中科院分区：
文献类型：
--
作者：
F. Perisse;Pascal Venet;G. Rojat;J. Retif
电解电容器容量大、价格低，在电力电子的许多领域都有应用，主要用于滤波和储能功能。它们的特性根据频率、温度和老化时间而强烈变化。这最后两个参数在电气仿真软件中通常不考虑。为了实现这些精确的模拟，我们提出了确定参数的电解电容器的电气模型，通过使用遗传算法的方法。该鉴定是针对额定值为4，700 μF/500 V的大型电解电容器进行的。不同温度和老化时间的测量值和模型之间的比较给出了良好的结果。本文所示的模型在温度低于0°C时的精度远远优于标准模型。但该模型不包含太多的元素，这使得它可以很容易地集成到仿真软件中。
With their large capacity and low price, electrolytic capacitors are used in many fields of power electronics, mainly for filtering and energy storage functions. Their characteristics change strongly according to the frequency, temperature, and aging time. These last two parameters are generally not taken into account in electrical simulation software. To realize these precise simulations, we propose to determine parameters of an electrical model of electrolytic capacitor by using the genetic algorithm method. This identification was carried out for a large electrolytic capacitor with rated value of 4,700 μF/500 V. The comparison between measurements and model for different temperatures and aging times gives good results. The model shown in this paper has a precision that is much better than a standard model for temperatures lower than 0°C. But this model does not comprise too many elements, which allows it to be integrated easily in simulation software.