In PVsyst Versions up to 6.52, when a System is defined with PV modules of Jinkosolar together with
Maxim optimizers, the default value for the 'Module Quality Loss' becomes 3%.
This value differs from the case where the same modules are used without
Maxim optimizers. In this case the default 'Module Quality loss' is 0.8%.
The discrepancy is due to the fact that, by mistake, in the PVsyst Database, the Jinkosolar PV modules for Maxim optimizers, were not assigned a lower Tolerance for Pnom.
JinkosolarLowerToleranceMissing.png [ 17.26 KiB | Viewed 4778 times ]
The correct value of the lower tolerance should be zero, as for the modules without Maxim optimizers.
The definition of the Jinkosolar Maxim modules will be corrected in PVsyst V6.53
. Until then, the following approach will correct the problem:
Correct the PAN file by opening it, and writing the value 0 in the field 'Tol. -'. Save under a new file name and use this new PAN file for the simulation. Once the PVsyst database has been corrected, these PAN files can be discarded.
JinkosolarLowerToleranceFixed.png [ 17.26 KiB | Viewed 4778 times ]