Since single phase is lumpy and bumpy output, on/off sort of. Would that act in part similar to a pulse charger?
If 3 phase is always sending power, smooth currant, always on, then that would NOT act as a pulse charger right?
Now question, if I take a 3 phase machine, rectify each line seperate (3 brigdes) and run each to it's own battery bank, then would I in effect have a 3 phase machine, smooth output, always on, but get the pulsing effect to each battery bank from each seperate phase?
If that's somewhat correct and might work, then when I do my wiring here soon, I still need the batteries in the truck for portable power, I could easily wire a bridge so I can connect to the main house bank or the bank in the truck. The ones in the truck of course get abused alot, I like to pulse charge those every so often.
All bridges would be connected at all times, thus 3 phase, just to different banks instead of all to one. If you think it will work that way I'll try it, if not I'll probably just wire in a switch to flip from one bank to the other as needed like I first planned.. nothing to lose
Spelin and tpying are my strong points, not electronics.[ Parent ]
You're right about some batterytypes liking to be charged with pulsed voltage; I've built a batterycharger once, and when it was finished, I heard that batteries should be charged with pulsed voltage; rectified AC, unfiltered (no electrolytic caps) should do the trick, if you can limit current & overvoltage.
As far as a 3phase machine providing 3 separate single-phase voltages; this can be done if you have 6 wires coming from your alternator; i.e. 2 wires per phase, and none of the 3 phases internally connected; i.e. 3 completely separate phases.
Then you can individually rectify them and end up with three single phases; however, if you don't load all phases about the same, your alternator will see a lumpy load (vibration, etc.).
Perhaps you could also use 3-phase star, where you use 4 wires: 3 phase wires, and the '0' (zero) from the center of your phases. That's the way the utilities provide electricity: they produce 3 phase, but each house normally only gets 1 phase (& other wire being the common 'zero' of the star). Unless you have a 3phase electric connection, obviously. Since most houses use about the same power, the 3phase system is equally loaded (what goes for your little genny about 'bumpy-ness' also goes for the big one from your power company).
Like I said, I'm not sure whether in a 3phase star-situation (with extra 'zero' wire) you could individually rectify each phase; when each phase is completely separately available (6wires) you can.
Hope this is a bit clear; my explanation won't win a prize for clarity, I'm afraid.
Peter, The Netherlands.[ Parent ]
