Title :
High frequency model for power electronics capacitors
Author :
Siami, Shidoush ; Joubert, Charles ; Glaize, Christian
Author_Institution :
Lab. d´´Electrotech. de Montpellier, Univ. des Sci. et Tech. du Languedoc, Montpellier, France
fDate :
3/1/2001 12:00:00 AM
Abstract :
The study of metallized capacitor behavior at high frequencies points out the presence of series and parallel resonances that could lead to oscillations, perturbations and additional losses in power electronics apparatus. Starting from an already established analytical model of this resonance, we propose a method to elaborate equivalent circuits suiting circuit simulators. These models should help further investigations on high frequency properties of decoupling and snubber capacitors in commutation cells
Keywords :
capacitors; commutation; electric impedance; equivalent circuits; frequency-domain analysis; losses; power electronics; time-domain analysis; capacitor impedance; circuit simulators; commutation cells; dielectric film; equivalent circuits; frequency domain; high frequencies; high frequency model; high frequency properties; losses; magnetic components; metallized capacitor behavior; oscillations; parallel resonances; perturbations; power electronics apparatus; power electronics capacitors; series resonances; snubber capacitors; time domain; Analytical models; Circuit simulation; Equivalent circuits; Frequency; Metallization; Power capacitors; Power electronics; RLC circuits; Resonance; Snubbers;
Journal_Title :
Power Electronics, IEEE Transactions on
