More MPPT Confusion and Question
Still trying to understand my MPPT set-up and what would be the effect of changing things a bit. My 230w (30.0 Vmp x 7.7 Imp) poly panel has a Vmp of 30.0v with a measurement tolerance of +/- 3% S...
Forum Discussion
BFL13 wrote:
...I still don't get how the MPPT works around the voltage drop...
The controller determines how much current to supply to the battery based on the batteries state of charge and controller design.
The MPPT function only kicks in when the PWM functions can not deliver this power demand - desired voltage at desired amps.
The controller kicks into MPPT mode when the panel can not deliver enough power due to either limited irradiance or its rating is just not big enough.
So the controller maximizes the voltage and current delivered at its input terminals - maximum input power, and then delivers maximum output power minus its losses.
The controller has no idea what the panel voltage or current is, only what is optimized for maximum power at its input terminals.
