Hi,
I am currently still gathering parts, as my summer seems to have once more been 'wasted' in doing boat stuff that will allow floating to occur, instead of the interesting electric stuff!
I have in mind various options, but the whole package will have to have redundancy, simplicity, and low cost. Hull speed is not required, and so regen is not an option/choice due to insufficient spare sail power.
I have recently ruled out the generator idea to gain range, as although it makes great sense, after thinking outside the box, it also has a prerequisite of needing to have a larger/largish motor, so it would be great, definitely the way to go for saving on battery cost on a commercial installation, but not so good in cost for a tinkerer like me with a minimal system planned. There seems little point in changing the power from motion to electricity, then to change it back to motion.
This leaves me with some ideas on hooking things up, but I have no full knowledge of how the parts will interact.
Now, down to the actual questions:
I have a couple of small 12v solar panels that can charge things while unattended. I figure on getting a small wind turbine to give me 500 w or so while attended.
I will also have a smallish (6 to 10hp?) ICE that powers the shaft forwards only when range is needed. It also will double as a genny, driving a couple of automotive alternators. I might have clutches in there, have not given that any thought yet, but I do not currently see a need to drive the alternators as well as the boat prop at the same time, only if it works by chance.
Although I plan to use 12v throughout, I accept that I might ultimately need at least 24v, so, let's assume that I have 4 12v batteries, 2 in series, and 2 in parallel.
I need 12 v for lights etc.
I figure on charging the batteries 2 at a time, with the charging sources switchable to suit those I want charged.
Assuming I am running the motors on 24v, (I might be later adding more motors that will be 24v, I will be using belt drive on a mounting plate to allow experimentation flexibility) can I hook up a solar panel to each battery while the load is being drawn? (My initial motors will be old style ICE DC generators)
Can I leave the solar panels hooked up when I am charging from the alternators (which will be electrically isolated from each other).
Same with a wind turbine, can I leave it hooked up to a battery while the panels and the alternators are charging.
I will also be using a small cheapy regulator that is recommended for use with the panels.
Basically, can I just hook everything up, and get no 'feeding back' on anything that will burn stuff out?
And if I have to use/add diodes in any places, how do I determine which ones, like, what are the rating specs I need to use?
Thanks for any insights,
John
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