Our configuration:
Quattro 48/5000, 150/85 SS MPPT, 3x PylonTech US3000 LiFe batteries, 10kVA Bundu Power LP Gas Generator. Battery BMU communicating on Can-bus.
Grid connected to AC-In 1 & genny to AC2 (for grid priority)
All components on latest Firmware
ESS Configuration
Optimized (without battery Life)
No feed-in
Battery Min SoC = 10%
VE Configure
I have tried many combinations, current settings:
UPS Function off
Dynamic Current Limiter on
Weak AC on
Power Assist on
Problem
Generator call is made at 5% SoC. Generator connects and starts charging battery while supplying small load (500W). Charge to battery increases and generator load gently increases to approximately 2kW, at which point the charging stops and load on generator drops to 500W (AC load only). This cycle repeats ...
With UPS function on, at the 2kW genny load the Quattro completely disconnects the genny, only to re-connect and repeat the process.
Voltage and frequency from genny remains stable and well within tolerances during these cycles. No big loads or demands on AC.
I am out of ideas. Please advise where the problem may be.
