Ultracapacitors modeling improvement using an experimental characterization based on step and frequency responses

• Published in: 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551) Vol. 1; pp. 131 - 134 Vol.1
• Main Authors: Lajnef, W., Vinassa, J.-M., Azzopardi, S., Briat, O., Woirgard, E., Zardini, C., Aucouturier, J.L.
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 2004
• Subjects: Applied sciences; Capacitors; Capacitors. Resistors. Filters; Circuit simulation; Circuit testing; Conductors; Dielectric, amorphous and glass solid devices; Electrical engineering. Electrical power engineering; Electrochemical impedance spectroscopy; Electrodes; Electronics; Exact sciences and technology; Frequency; Hybrid electric vehicles; Resistors; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Supercapacitors; Various equipment and components; Test bench; Hybrid electric powered vehicles; Bench test; Review; Experimental study; Electric circuit; Modeling; Implementation; Step response; Electrical measurement; Spectrometry; High power; Supercapacitor; System simulation; Frequency response; Mathematical model; Electrical impedance
• ISBN: 9780780383999; 0780383990
• ISSN: 0275-9306; 2377-6617
• DOI: 10.1109/PESC.2004.1355728

This paper deals with ultracapacitors modeling that has been improved for high power source purpose such as in hybrid and electric vehicles applications. An experimental method based on the combination of step and frequency response has been implemented and used in a dedicated test bench. First, a critical overview of available ultracapacitors models is made and a new approach is proposed. Then, after constant current and impedance spectroscopy tests, the experimental results are presented and discussed. Finally, the exploitation of the tests results leads to the identification of a proposed model parameters. This electric circuit is validated by comparing simulation to experimental curves.