I am looking at whether it is possible to do this.
I am going to use multiple DC sources (Focused solar on to a sterling engine. Using a 3 phase star/delta change-over system)
The 1st problem is during low sun when the voltage is less then that needed to charge a battery. Is is possible to connect them in parallel(They will be at different voltages)
Also when connected in series will all the the current get through(from different voltages. diode protected) if the load was great enough?
The 2nd problem is when there is too much sun and the voltage from each engine is to high. Is there an easy way to reduce the voltage and thus increase the current.