Hi All
If i want to design a small alternator (100mm or about 4" diameter), with 2 stator rings (for a start) and 3 rotors (1 on each end and 1 in the middle)with 6 coils on each stator, what would the best magnet layout be?
The coils i want to place in 60degree spaces. Assuming this will be 3 phase, how should the magnets be placed to give best results?
I have read that ordinarely you would have 1.33 magnets for each coil, so that would be 8 magnets. Am i correct in assuming that the magnets just be spaced on 360 degrees / 8 which is 45 Degrees?
The coils will be fairly small, about a wedge that can fit inside a equal sides trangle with 58mm sides.(all 3 sides are the same length)
What thickness must the coil be and will it work in a triangular shape? I have made some drawings with the coils about 10 mm thick with the outsides fitting in the above mentioned triangle. So hopefully they will be sufficient.
So the plan is to have 2 stators in above configuration (if its possible of course) with the 3 rotors on the sides and middle. If the middle rotor is the same thickness as the magnets, can it be made to have its faces open so that north pole one side of the rotor, and south pole other side? There isnt any rule against that is there?
Any suggestions or thoughts?
Thanks in advance
Roly SA