low voltage reverse photovoltaic cell characteristics on shading losses in 8.0.8

[Chen]

Electrical shading: a tool used to analyze the impact of extremely low voltage reverse photovoltaic cell characteristics on shading losses.

 

It seems that it doesn't work in version 8.0.8. Can you check it? tks

[André Mermoud]

Sorry, I don’t know what should be improved.

The result is highly depending on your system. If more than 3 cells are shaded at a time within a submodule,  you should not see any difference.

Please carefully read the help   https://www.pvsyst.com/help/physical-models-used/pv-module-standard-one-diode-model/pv-module-reverse-lowvoltage.html?h=ibc

 If your system is "regular", there are probably very few hours in the year concerned by this condition.

[Chen]

the problem is ：the value of BRev is limtted to 50 in the PVsyst8.0.8

[André Mermoud]

Yes, sorry, I completely forgot mentioning this in my last post.

The correction I had done in the program has not been taken into account for the published version 8.0.8.

This should be corrected in the next version 8.0.9, to be released still this week. 

In the meantime, the only way of modifying this value is to set the parameter “Arev= 1000” directly in the PAN file. And with this PAN file you should not enter the page “Additional parameters” of the PV module definition dialog.