The paper discuses four different electrical models for use with simulation packages to investigate the behaviour of super capacitors, also known as Electrochemical Double Layer Capacitor (EDLC). Three different methods of parameter extraction were developed for the most promising model for practical use. Hardware based on constant current charging and discharging was built in order to facilitate the extraction of the model parameters. Parameters of two parallel connected of 15V, 52F super capacitor modules BPAK0052B01 manufactured by the Maxwell Company were extracted experimentally using the three different methods. The relative merits of the three methods are also discussed.
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