Configuration problem

[fabrizio]

I have a problem in a configuration of a system as proposed by PVsyst.

The system is composed by 367 strings of 25 AIKO Comet 2U 650 Wp in series. I'm investigating the use of the SMA Sunny Highpower Peak3 180-21.

PVsyst 8.0.15 is proposing me 26 units of the inverter. It means the use of 26 string boxes: 23 making the parallel of 14 strings and 3 grouping 15 strings.

Taking into the account the Imppt max current of the module equals to 14.76 A at 70°C, and the max input curret specified by SMA for the inverter equals 180 A and the max ISC curr 325 A, both numbers of strings in parallel mentioned before, 14 or 15,  exceed (206.64 V and 221.4 V respectively) the max current input specified. How is possible that PVsyst proposes me the said configuration see the attached screen shot

RfG European Network Code

Configurazione SMA SHP180-21.pdf