Hi guys,
I’m having trouble with a recent install i did. I have the following setup;
- 3x 3kva multiplus 2 ( 1 per phase )
- 2x 15,7kwh JK-BMS controlled batteries, 314ah per battery.
- Growatt 8000TL3-X on AC OUT 1 ( with EM24 meter installed )
The system is working perfectly fine, untill i discconect the AC IN and go in micro-grid mode. The PV inverter then connects to the grid, starts producing and then suddenly after around 20 seconds stops producing, lights flicker, frequency rises and the MP2’s makes a weird noise. Then suddenly the PV inverter starts producing again and all is normal until after 20 seconds it happens again and again and again. I understand the system is using frequency shifting to controll the output of the pv inverter. However, the batterys are only 16% and there is no load on the ac out.
I cant for the love of god figure out why the system is frequency shifting while the batteries are almost empty and there is no load on the AC OUT. For some reason it looks like it cant handle the output of the pv inverter. It doest matter if the pv inverter is outputting 300 watts or 3000 watts. I’ve tried adjusting the frequency settings in ESS and the pv inverter.
Anyone here who can point me in the right direction? I’ve had multiple installers take a look at the settings, but no luck.