Hello, I'm working on a community solar site that will be 4950kWac (QTY 18 275kW string inverters). I'm utilizing string lengths of 24, 22 and 20 modules. I have total number of strings for each string length based on the preliminary site design however, I do not have stringing configuration per inverter yet. I'm trying to figure out the best way to utilize the multi-MPPT function to model the differing string lengths without knowing exactly how the strings will be allocated to the 18 inverters.
So far, I've created three different subarrays to represent each string length. For totals I've got the following:
376 strings of 24 modules
46 strings of 22 modules
48 strings of 20 modules
I know the total number of inverters is 18 which equals 216 total MPPT inputs to be utilized. Is best practice to manually allocate the 216 MPPT inputs between the three configurations targeting a similar Pnom ratio between all three subarrays? After allocating the strings, do I use the power sharing function to balance the strings onsite within one configuration? Screenshots below show what I've done so far, I just want to make sure that this is the most accurate way to model without detailed stringing being completed.
Thank you!
