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Article Dans Une Revue Electrical Engineering Année : 2006

Simple model of an electrolytic capacitor taking into account the temperature and aging time

Résumé

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 mu F/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 degrees C. But this model does not comprise too many elements, which allows it to be integrated easily in simulation software.
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Dates et versions

hal-00140547 , version 1 (12-02-2008)

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Frédéric Perisse, Pascal Venet, Gérard Rojat, Jean-Marie Rétif. Simple model of an electrolytic capacitor taking into account the temperature and aging time. Electrical Engineering, 2006, 88 (2), pp.89-95. ⟨10.1007/s00202-004-0265-z⟩. ⟨hal-00140547⟩
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