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PostPosted: Mon Nov 09, 2020 11:18 pm 

Joined: Mon Nov 09, 2020 11:02 pm
Posts: 2
Hi,

First off, I'm using PVsyst version 7.0.16.

I'm trying to modify a PAN file based on a third-party PAN file that I was provided. When I opened the PAN file in PVsyst, I noticed that the RSerie parameter got changed from 350 to 500. As an experiment, I didn't make any edits to the file and immediately closed it in PVsyst. I then opened the PAN file in a text editor and saw that the value was still 350.

But then I re-opened the PAN file in PVsyst, made some edits to the PAN file (I didn't change RSerie), then saved the file as a new file. When I opened the PAN file in a text editor, the value had changed to 500.

This seems like a bug that's unique to version 7, because I did the same things in version 6 and I had no problems there.


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PostPosted: Wed Nov 25, 2020 1:35 am 

Joined: Mon Nov 09, 2020 11:02 pm
Posts: 2
Just wanted to give an update.

Today I was opening a manufacturer-provided PAN file in 7.0.16, and I noticed that PVsyst again changed a parameter when I opened it - this time it was Voc (went from 53.5 to 31.2).

Additionally, I noticed that when I went to change the number of cells in parallel from 1 to 2 and the cell area from 328.9 to 165, that PVsyst also changed the following parameters:
1. RSerie (went from 0.255 to -2.781)
2. Gamma (went from 1.151 to 4.620)
3. muGamma (went from -0.0004 to 0.0200)

I updated my PVsyst version to 7.0.17 and the error still persisted.


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