Hello,
We have a three phase, AC coupled ESS system comprised of 3x Quattro 15KVA . We're confused about how each phase will be balanced in case of unbalanced loads on AC OUT. Let's set the following example :
- We're grid connected and feedback is allowed (ESS mode).
- We have our PV Inverter producing 6000W total (2000W on L1 / L2 / L3).
- We have consumption of 3000W on L1, 0W on L2 and L3.
How will each Quattro behave ? Power could flow according to this :
- L1 : 2000W consumed directly from the PV inverter / 1000W taken from bat
- L2 : 2000W used to charge DC bus (bat).
- L3 : 2000W used to charge DC bus (bat).
Net sum from DC bus would thus be 2000+2000-1000 = 3000W to the battery. Am I getting this right ? Or is this not the right way of calculation ? Can each Quattro decide how much power is pushed through AC OUT independently one of the other in case of a 3ph system ?
Thanks in advance,
