POWERSHARING - # of MPPT of the sub-array exceeds the MPPT capacity of inverter

[Aidenn]

Hi PVSyst Community,

Is there a turnaround so I can define this config in the powersharing option in PVSyst?

For context, 1A.PCS.7 uses SG4400 as inverter and at 27m/s. It exceeds the 4MPPT capacity of the inverter and the PVSyst reads this configuration as 2 INV instead of 1.

MPPT1 - 585W - 81str

MPPT2 - 585W - 82str

MPPT3 - 585W - 47str

                590W - 36 str

MPPT4 - 590W - 20 str

                595W - 60 str

Thanks for the help!

[Michele Oliosi]

Unfortunately, it is not possible to put two different types of string on the same MPPT in PVsyst. You must either approximate the module rated power so that the MPPT are homogeneous, or you should redefine the inverter as having 6 MPPT, although this could somewhat affect the inverter losses.