Lets say we have a nice windy and sunny day and some discharged batteries. Lets say 11V. I hook up the pv charge controller, its putting out whatever V it thinks is getting max power. Lets say its
14V. Now the microcontroller on the wind turbine charge controller sees 14V, and either thinks the battery is charged, or tries to hump out 16V or so to try to get some amps into the rig, but this would confuse the mppt pv controller. So is there an algorithm or strategy for using two different charging sources at the same time? Have two big watt low ohm mixing resistors, like mixing audio? Heating Rs doesnt sound thrifty.- posted
16 years ago