Hi Guys, I'm planning my off-grid system and I need some help with the design.
My initial plan is to use Mulitplus II GX/MultiGrid with DC coupled PV connected to the BYD battery pack. The issue at this stage is the optimal connection of the wind turbine (3 phase generator).
Inverter recommended for this turbine can operate in both on-grid and off-grid installations. In on-grid mode it would be connected to AC out of the Mulitplus. If I'm not wrong surplus energy can be used to charge the battery but without any control of the Victron or BYD BMU.
Off-grid model can be connected to the batteries and work without the grid but the communication with BMU/BMS isn't supported.
Do you think that it's possible to use output of the wind inverter as an input to the Multiplus (or as genset for MultiGrid)?
This is a schematic for the off-grid, 'connection point to the electricity grid' will be the Multi.
Both Multi and PS100 will be connected to the same battery pack, but charging/discharging will be disabled in PS100. This should allow Multi to use power generated from wind to charge the batteries in line with BMU communication. If I'm not wrong it will also resolve the problem with overcharging the batteries.
What's your thoughts about this approach?