Hi Dawie, so I requested Deye to update my inverter firmware and enabled MPPT-multipoint scanning for the month. I suspect shadows was causing the issue.
The MPPT-multipoint scanning will do a whole voltage scan. It's not a permanent fix but at least doesn't lose out as much when the voltage...
I meant 'MPPT Mutli-Point Scanning'. I believe it's similar to shadow scan for Goodwe inverters where the MPPT looks for 'global' instead of 'local' MPPT.
https://community.goodwe.com/solution/How%20does%20Shadow%20Scan%20Work...
So this morning it acted up again. I have enabled multiple MPPT point feature now on the inverter. Will monitor and see if it will assist with the problem.
I take it as everyone has mentioned on the forum, that during sunrise the panels are shaded and the mppt controller gets stuck and due to...
Panels are all the same, one string facing north (PV1) and other West (PV2). I also don't think it is solar panels issues, the voltage is consistence when stuck (you can see it, the voltage is like a ruler straight).
Today the string is working normally and voltage is fluctuating normally as it...
It was still producing current, even with the constant (stuck) voltage. The voltage was flat lined until I cycled the PV2 circuit breaker.
I have attached two figures, before and after the cycling of the PV2 circuit breaker.
It seems as if the MPPT for the inverter clipped the voltage...
I have 8kW Deye inverter and noticed today that one of the PV string voltage got stuck (circled in yellow), but once I cycled the circuit breaker to the string it recovered (circled in green).
Looking back at historic data this is the third time this has happened.
What could be cause of this?
Looking to install solar. Any recommendation for solar installers in the Johannesburg region. There are so many Solar Installers, most post positive reviews for installation by what really matter is the after service too when there are issues.
So far have quotes from Solar Advice and...