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Development of the Improved Dynamic Model of the Supercapacitor Considering Self-Discharge  

Kim, Sang-Hyun (숭실대 전기공학부)
Lee, Kyo-Beum (아주대 전자공학부)
Choi, Se-Wan (서울산업대 제어계측공학과)
Choi, Woo-Jin (숭실대 전기공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.14, no.3, 2009 , pp. 188-196 More about this Journal
Abstract
Due to its high power density, long cycle life and clean nature supercapacitors are widely used for improving the dynamic characteristics of the new and renewable energy sources and extending the battery run-time and life. In this paper improved dynamic model of the supercapacitor is developed by the electrochemical impedance spectroscopy technique. The developed model can be used to accurately estimate the dynamic behaviour of the supercapacitor and calculate the exact capacitance value at a certain state of charges. The model of the supercapacitor in the frequency domain is equivalently transformed into that in the time domain for Matlab/Simulink simulaton. The simulation data shows fine agreements with experimental results, thereby proving the validity and the accuracy of the developed model.
Keywords
Supercapacitor; Electrochemical Impedance Spectroscopy; Dynamic Simulation; Equivalent Circuit;
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Times Cited By KSCI : 1  (Citation Analysis)
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