| Titre : | A simple offline technique for evaluating the condition of aluminum–electrolytic–capacitors |
| Auteurs : | Amaral, Acacio Manuel Raposo, Auteur ; Cardoso, A. J. Marques, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | IEEE transactions on industrial electronics (Vol. 56 N° 8, Août 2009) |
| Article en page(s) : | pp. 3230 - 3237 |
| Note générale : | Génie électrique |
| Langues : | Anglais |
| Index. décimale : | 621.38 (Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X) |
| Tags : | Capacitance Discrete Fourier transform (DFT) Dissipation factor Electrolytic capacitors Equivalent series resistance (ESR) Fault diagnosis |
| 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 |
