I am considering using single-phase Fronius inverters in a three-phase Victron system instead of a three-phase Fronius inverter. This decision primarily stems from the availability of two single-phase Fronius inverters that I currently have, and purchasing a third would be more cost-effective than buying an entire three-phase Fronius inverter.
I am seeking insights from those with experience in similar installations, particularly regarding the frequency and phase control mechanisms employed when integrating a single-phase Fronius inverter with a three-phase Victron system. How does the system maintain synchronization under varying load conditions?
Additionally, I am contemplating whether it might be better to disregard the Fronius inverters (which I intend to connect on the AC1 Out and program the system on ESS) and instead utilize MPPTs.
Any guidance or advice based on your experience would be greatly appreciated. Thank you.