Étude et modélisation des supercondensateurs : applications aux systèmes de puissance
Auteur / Autrice : | Yasser Diab |
Direction : | Gérard Rojat |
Type : | Thèse de doctorat |
Discipline(s) : | Génie électrique |
Date : | Soutenance en 2009 |
Etablissement(s) : | Lyon 1 |
Mots clés
Mots clés contrôlés
Résumé
The aim of this work is to analyze quantitatively the supercapacitors performance (capacitance, ESR, self-discharge. . . ), which are made by different technologies under constraints ; thermal and electrical. Different supercapacitors parameters are charactezed by the help of different techniques as impedance spectroscopy, voltamperometry, and charging/discharging cycles. The supercapacitors modelling have been conducted by several complementary models. These models are compared in time and frequency domain with various experimental tests. A new model of the self-discharge was established. All the life expectancy energetic efficiency and balancing time are compared for different balancing circuits and typical applications. The whole of this wordk has helped to investigate the supercapacitors behaviour applied in series demonstrating their reliability, the balancing time and the total energy efficiency of the system