Design and Simulation of Efficient Supercapacitor Model Using
The supercapacitor model is simulated in this study by using MATLAB/Simulink, and the efficiency of the model is improved by verifying and evaluating the parameters.
SUPERCAPACITOR MODELING supercapacitor is a high-energy version of a conventional capacitor, holding hundreds of times more energy per unit volume or mass. A supercapacitor is an electrochemical device consisting of two porous electrodes immersed in an electrolyte solution that stores charge electrostatically.
Accurate modeling can also help to identify and address potential failure modes and improve the safety and reliability of the supercapacitor system. Therefore, accurate modeling and simulation are of great significance in the development and application of supercapacitors.
Among the many models of supercapacitors, the most widely used is the equivalent circuit model. The equivalent circuit model, according to the electrical characteristics of the supercapacitor in the working process, uses various components in the circuit to characterize its internal deterioration mechanism.
In the model, the heat generation is modeled as a current source, which is a function of the supercapacitor current; Cth represents the thermal capacity of the supercapacitor, Rth denotes the equivalent thermal resistance of the supercapacitor, and Ta denotes the surrounding air temperature. Figure 12. Supercapacitor thermal models.
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