Offgrid MP + AC coupled SMA Sunny Boy (SB) with lead carbon super capacitor batteries. An additional BlueSolar MPPT controller is planned for the future but currently not connected.
I'm looking for more information about DVCC as I see unexpected/undesired behaviour, where the MP is telling the SB to reduce power generation (possibly to the point where the SB reduces power output to 0W) and subsequently starts to use the batteries to provide power to the loads. After a little while, the SB ramps up power generation again (presumably in response to a lower frequency generated by the MP) and provides power to the loads and the MP starts charging the batteries again. This seems to particularly happen once the batteries are full.
While this might well be normal when an addiotional load just comes on (and the SB was more or less idling due to full batteries); I would not expect it to happen during the time that a larger load is present. Note there's normally an AC base load of at least 100W.
Does it make sense to enable DVCC in VenusOS for this AC coupled system? Where can I read about how this works in more detail? I did look at the Victron manual page and also searched the internet but so far haven't found much that is relevant.