Title :
A Physically Based Explicit
–
Model of a Solar Cell for Simple Design Calculations
Author :
Karmalkar, Shreepad ; Haneefa, Saleem
Author_Institution :
Indian Inst. of Technol. Madras, Chennai
fDate :
5/1/2008 12:00:00 AM
Abstract :
An accurate - equation of a practical solar cell is inherently implicit, which necessitates iterative calculations to determine the fill factor and the peak power point. We propose a simple explicit power-law J-V model that is applicable to a wide variety of solar cells. The model allows an easy prediction of the entire J-V curve, peak power point, and fill factor from four simple measurements of the bias points corresponding to , and, where is the open-circuit voltage and is the short-circuit current density. The model also provides a closed-form description of the J-V curve, peak power point, and fill factor in terms of physical parameters of the single exponential model.
Keywords :
iterative methods; solar cells; explicit J-V model; fill factor; iterative calculations; open-circuit voltage; peak power point; short-circuit current density; single exponential model; solar cell; Closed-form solution; Current density; Current measurement; Density measurement; Equations; Photovoltaic cells; Physics computing; Predictive models; Space technology; Voltage; $J$–$V$ model; Curve fitting; fill factor; parasitic resistances; solar cell;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2008.920466