Hello from Canary Islands,
I have already asked this question in another thread, but I think I'd better start a new question.
Victron MultiPlus 48/5000/70-100, Product ID 2624, Firmware v498, off grid
Victron SmartSolar Charger MPPT 250/100, Product ID A050, Firmware v1.61
Lithium battery YUASA 2x15 cells, 120 AH
REC 1Q-BMS on CAN Bus
Victron Venus GX
MyPV AcThor 3 kW single phase wiht a heating cartridge 2500 W, frequency control.
This is the MultiPlus frequency control setting:
But it didn't work the way I hoped.
I want the frequency to increase in case of PV surplus. This would be the moment when the Solar Charger decreases the charging power.
But the frequency only increases when the maximum battery voltage is reached (my BMS is set to 60.02 volts). However, the control behaviour is such that the battery voltage drops to 59.79 volts in float and remains there. That's why the MultiPlus regulates the frequency down again immediately. So I only have a few minutes in which the AcThor could work. How can I ensure that the frequency remains at 51 Hz as long as I have a surplus?
Thanks for your support!