I am trying to set up a 1-phase off-grid system. I have:
+ 2 Quattros 15000
+ 2 Fronius Primo 8,2
+ 2 10 kWh BYD BOX Batteries (with the special VE.CAN Cable)
+ CCGX
+ Energy Meter ET112
+ 14 kVA Genset
Don't pay attention to the oversizing of the system, it will be expanded afterwards. Right now I don't have any connected loads, just the battery and the CCGX can get energy.
I want the PV inverters to produce energy to supply the loads and to charge the batteries if there is excess of energy. If there is energy surplus, I want the PV inverters to reduce dynamically their output power (as with ESS the Zero feed-in feature).
1) Is this possible?
I have set in the Fronius the MG50 code and loaded the assistant PV support Inverter to the Quattros (VE.Bus Configure --> VE.Configure Q1 and then Q2) according to https://www.victronenergy.com/live/ac_coupling:fronius. I have more than 15.68 kWp < 15000 kVA x2 but the assistant is telling me that the size of PV should be less than the power of Quattros.
2) Should I split it (7.84 kWp and 8.2 kW to Q1 and 7.84 kWp and 8.2 kW to Q2)?
The system is not regulating and when there is about 8 kW from the PV inverters, the batteries are loading superfast and hence I get a temperature warning in the Quattro and the system stops. I have set via CCGX a current limitation of 35A but it is not respecting it.
3) How can I limit the power to the battery?
