DocumentCode :
63647
Title :
Improved model of metalized film capacitors
Author :
Makdessi, Maawad ; Sari, Ali ; Venet, Pascal
Author_Institution :
AMPERE Lab., Univ. de Lyon, Villeurbanne, France
Volume :
21
Issue :
2
fYear :
2014
fDate :
Apr-14
Firstpage :
582
Lastpage :
593
Abstract :
Metalized film capacitors are commonly used components in power electronics applications and their characteristics are drastically dependent on their operating frequency. Parasitic parameters could appear at low and high frequencies and disturb substantially the behavior of the component. Proper design of metalized film capacitors requires an understanding of all parasitic parameters´ sources and their impacts on the circuit operation. This paper presents a modeling approach based on the complex form of the capacitor impedance to build its equivalent electrical circuit. This approach proved to be more accurate than the traditional modeling technique of identifying the electrical parameters using the modulus of the component impedance. Two different types of capacitors were tested; experimental results allowed to validate our model from 10 kHz to 35 MHz.
Keywords :
electric impedance; equivalent circuits; metallic thin films; thin film capacitors; capacitor impedance; component impedance; electrical parameters identification; equivalent electrical circuit modelling; frequency 10 kHz to 35 kHz; metalized film capacitors model; parasitic parameters source; power electronics applications; Accuracy; Capacitors; Films; Frequency measurement; Impedance; Impedance measurement; Positron emission tomography; Capacitors; dielectric films; modeling; optimization methods; parameter estimation; plastics;
fLanguage :
English
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
Publisher :
ieee
ISSN :
1070-9878
Type :
jour
DOI :
10.1109/TDEI.2013.004158
Filename :
6783050
Link To Document :
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