How to generate a P-V curve when changing the Open Circuit Voltage and Short Circuit Current Values in a Solar Cell module?

Hello,

I'm realatively new to simulink and I am trying to generate a P-V curve using a solar cell module and a variable resistor. Whenever I use the default values for Voc and Isc in the solar cell module, I get a P-V curve. However, when I change the Voc and Isc values in the solar cell, my plot shows a linear relationship instead of a curve. Is there a way to change the Voc and Isc values in the solar cell to have it display a correct P-V curve? I have provided my working Simulink model below. Thank you.

Answer 1

[Sabin]

To learn more about how to generate solar cell power curve check out this Simscape Electrical example:

https://mathworks.com/help/sps/ug/solar-cell-power-curve.html

Since R2024b Simscape Electrical provides also the capability to generate a digital datasheet for the Solar Cell block, including current-voltage (I-V) and power-voltage (P-V) curves, using a MATLAB® live script. The script imports the parameters from the Solar Cell block you select in the model. You can use these characteristic curves to evaluate the maximum power point tracking (MPPT) output, because the curves help to identify the peak power at various irradiance levels and cell temperatures. To open the MATLAB live script:

1. Double-click the block to open the Block Parameters window.
2. Open the Description tab.
3. Click the Generate datasheet hyperlink.

To generate the datasheet, in the live script, click the Generate Datasheet button.