Hi There,
If I have a Cerbo on the LAN as the Fronius units, do I need to load the PV Inverter Support assistant when AC coupling with Fronius Inverters?
I would expect that I still need the frequency shifting as backup?
asked
Do I need to load the PV Inverter Support assistant when AC coupling with Fronius Inverters
Pv inverter support is for offgrid setup.
If you are on grid or mostly connected, use ESS assistant.
Apologies, I am referring to an Off-Grid setup. So I guess I need the assistant?
Yes, then use the PV assistant.
Basically one feature of the PV assistant is when grid/generator is connected the pv inverter does not run to prevent feedback to source.
Although to be honest the ESS would work as well, you would just need to make sure it can't feedback to the generator. (One trick is to run the generator up at a frequency that throttles the fronius.) Which is then almost the same thing as pv assistant.
This works on or off Grid!
https://www.victronenergy.com/live/ac_coupling:fronius
@Stubbs
Check 1.4 it states there must be a frequency shifting assistant programmed onto the inverter.
When you select the microgrid it matches the default programming for the Victron. (Stated in section 1.2)
