The clipping loss is not only dependent on the DC:AC ratio, but also on the strings distribution on different MPPT inputs.
As an example if you are using inverters with several MPPT inputs:
- when you use the option "Uses multi-MPPT", each MPPT input will be considered as an independent inverter with half-Pnom
In this case, as an example, the MPPT with 2 strings may have overload when the MPPT with one string will not.
- when you uncheck this option, the inverter will have 3 strings on 2 MPPT inputs, but the power may be shared so that you have no (or much less) overload. This is the real behavior of most inverters.
This is explained in detail in the help "Project design > Grid-connected system definition > Multi-MPPT inverters: power sharing"
|