Setup: my battery is full, DC voltage is equal to what the BMS says is the maximum. I'm telling my set of MultiPlus 3000 (3-phase setup, controlling phases separately) to send a total of 700W to the grid (external control, writing to /Hub4/L/AcPowerSetpoint. However, the Multis don't listen and output 1300W. Apparently because that's (part of(?)) what the solar array wants to deliver right now.
I don't like that. If and when my energy provider tells me that there's enough energy out there and to Not Feed The Grid, my system *must* listen, otherwise I won't get any money for the energy I do feed to the grid.
Any idea why that happens and how to fix it? (Yes, I'm writing these AcPowerSetpoint values every couple of seconds. This setup works perfectly if the battery happens to not be full.)
Edited to add: solar power is from a couple of Victron DC chargers which are perfectly capable of shutting down when the voltage reaches the maximum set by the BMS.