Fig 1.
Electric circuit of the one-diode solar cell model.
The is the light current, generated by the photons,
is the current through the diode,
is the current through the shunt resistance, I is the current coming and going out the solar cell, and
is the applied voltage applied on the solar cell.
Fig 2.
Graph (in green) of the results reported in Table 2 (no noise case), for percentage errors of (a) , (b)
, (c) n, (d) Ilig, and (e) Isat, relative to the original of
, Rs = 1 Ω, Rsh= 1 kΩ, Isat = 1µA, and
= 1 mA parameters. In blue colour, are the results obtained using the trapezoidal integration provided by the software Origin.
Fig 3.
Graph (in green) of the results reported for the of noise, for percentage errors of (a) (a)
, (b)
, (c) n, (d)Ilig, and (e) Isat, relative to the original of
, Rs = 1 Ω, Rsh = 1 kΩ, Isat = 1µA, and
= 1 mA parameters, obtained using the program CCSimpsonOrder5.exe, reported in this article. In blue colour, are the results obtained using the trapezoidal integration provided by the software Origin.
Fig 4.
Graph (in green) of the results reported for the 0.01% of noise, for percentage errors of (a)
, (b)
, (c) n, (d) Ilig, and (e) Isat, relative to the original of
, Rs = 1 Ω, Rsh = 1 kΩ, Isat = 1µA, and
= 1 mA parameters, obtained using the program CCSimpsonOrder5.exe, reported in this article.
In blue colour, are the results obtained using the trapezoidal integration provided by the software Origin.
Fig 5.
Graph (in green) of the results reported for the 0.1% of noise, for percentage errors of (a)
, (b)
, (c) n, (d) Ilig, and (e) Isat, relative to the original of
, Rs = 1 Ω, Rsh = 1 kΩ, Isat = 1µA, and
= 1 mA parameters, obtained using the program CCSimpsonOrder5.exe, reported in this article.
In blue colour, are the results obtained using the trapezoidal integration provided by the software Origin.
Fig 6.
A Electrical setup, to record the I_V curves of a solar cell, and B electrical circuit of the setup given in A.
Table 1.
a using CycleB, b using trapezoidal, c using program CCSimpsonOrder5.exe.
Fig 7.
A I_V curves measured in darkness and B under illumination.
For each value of V, the I was measured 1 time (black curve), 10 times (red curve), 100 times (blue curve), and 1000 times (magenta curve), and averaged, to diminish the presence of noise. In the insets, the [0 V, 0.3 V] range is shown, to allow the reader a clearer view of the presence of noise.
Fig 8.
Simulations done with the extracted parameters, using CycleB proposed in [46,48] and reported with superscript a in Table 1, on the 1 time measured (black curves), and reported as red curve for the darkness case, and green curve for the illumination case. The simulations reasonably reproduced the measured I_V curves, confirming good parameters extraction.