Confusing the MPPT controller
Here I go with my ignorant self again, seeing something and thinking I can figure it out. ;) When I first got my original panels I talked to quite a few people including Mark at Rogue saying to run...
Forum Discussion
Part of the issues may be the type of MPPT controller being used and the differential outputs from the panels. Most newer controllers use a sophisticated algorithm and "Incremental Conductance" for stepping in the controller to reach the MPPT. The older "Perturb and Observe" models would probably have less of an issue with the mixed panels. Jim may have the IC model but is introducing his own perturbation with the mixed panels.
Article on MPPT implementation
Article on MPPT implementation
