A simple offline technique for evaluating the condition of aluminum–electrolytic–capacitors / Amaral, Acacio Manuel Raposo in IEEE transactions on industrial electronics, Vol. 56 N° 8 (Août 2009)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 56 N° 8 (Août 2009) . - pp. 3230 - 3237 Titre : A simple offline technique for evaluating the condition of aluminum–electrolytic–capacitors Type de document : texte imprimé Auteurs : Amaral, Acacio Manuel Raposo, Auteur ; Cardoso, A. J. Marques, Auteur Article en page(s) : pp. 3230 - 3237 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Capacitance Discrete Fourier transform (DFT) Dissipation factor Electrolytic capacitors Equivalent series resistance (ESR) Fault diagnosis Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a very simple technique to estimate the condition of aluminum-electrolytic-capacitors. The aging of aluminum-electrolytic-capacitors is expressed by the increase of their equivalent series resistance (ESR) and the reduction of their capacitance. Thus, the proposed technique is based on the estimation of both the ESR and capacitance values. To implement the proposed technique, the capacitor is fed by a sinusoidal voltage with the required power. The resultant impedance vector defined by the capacitor voltage and current gives enough information to estimate the condition of the capacitor. DEWEY : 21.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4926189 [article] A simple offline technique for evaluating the condition of aluminum–electrolytic–capacitors [texte imprimé] / Amaral, Acacio Manuel Raposo, Auteur ; Cardoso, A. J. Marques, Auteur . - pp. 3230 - 3237. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 8 (Août 2009) . - pp. 3230 - 3237 Mots-clés : Capacitance Discrete Fourier transform (DFT) Dissipation factor Electrolytic capacitors Equivalent series resistance (ESR) Fault diagnosis Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a very simple technique to estimate the condition of aluminum-electrolytic-capacitors. The aging of aluminum-electrolytic-capacitors is expressed by the increase of their equivalent series resistance (ESR) and the reduction of their capacitance. Thus, the proposed technique is based on the estimation of both the ESR and capacitance values. To implement the proposed technique, the capacitor is fed by a sinusoidal voltage with the required power. The resultant impedance vector defined by the capacitor voltage and current gives enough information to estimate the condition of the capacitor. DEWEY : 21.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4926189

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