Supercapacitor Modeling & Simulation: A Comprehensive Guide
This article explores the principles of supercapacitor modeling, the key mathematical equations, and various simulation approaches used in research and industry.
A simplified electrical circuit model for a supercapacitor (SC) based on the voltage-current equation is proposed in this paper to address this issue. This model doesn't need an intensive test for accuracy.
Here, it is shown that consistent modelling of a supercapacitor can be done in a straightforward manner by introducing a dynamic equivalent circuit model that naturally allows a large number or a continuous distribution of time constants, both in time and frequency domains.
supercapacitor models have been proposed in previous researches. Nevertheless, most of them require an intensive test to obtain the model parameters. These may not be suitable for an initia simulation study, where a simple model based on the datasheet is required to evaluate the system performance before building the hardware prototype.
The aim of this study was to demonstrate that the dynamic equivalent circuit can be used to model the behaviour of supercapacitors if one allows for an interpretation in terms of a distribution of relaxation times.
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