I use a 3-phase ESS system with Multiplus II 48/3000.
The system starts to oscillate from time to time as shown in the attached video.
The power changes on the individual phases are not caused by one or more household devices, but must have another cause. The changes are too frequent and always on all three phases for it to be a household device.
To me it seems like the issue usually occurs when the chargers (MPPT RS + SmartSolar) start working. Here in the video 20W PV Charger Power.
The following components are in use:
- VenusOS 3.13
- 3x Multiplus II 48/3000/35-32 Prod 2629, FW 507
- MPPT RS 450/100 FW v1.10
- SmartSolar Charger 250/70 rev2 FW v1.56
- Pylontech US2000C/US3000C with 16.6kWh
Any idea?
Thanks for help.
