The Pack Rat Work Shop Wind Power
I want to be able to charge my 36v trike batteries and my 24v mobility scooter batteries from the sun or wind. I haven’t the money for solar panels at the moment so I decided to try using the wind. I’m using the windturbines shown to drive these various alternators and generators. This one is designed as a “standard” windturbine axial alternator. It has been modified for simplicity of supplies and lower output to match the turbines.
After looking at a lot of different sites and comparing all the different plans I could find, this is what is ended up with.
Magnets: 24 1″ diameter by 1/8″ thick super magnets
They are mounted on top of 2 layers of sheet metal (recycled heating duct) screwed down to 1/2″ thick hardwood plywood disks with brass screws. The magnets are glued on with fiberglass resin as standard procedure and the entire disks are also sealed/painted with resin.
Coils: It uses 9 coils with every third coil wired in series for 3 phase output.
60 rpm = begins charging 24v battery
120 rpm = 250 milliamps into 12v battery
200 rpm = 350+ milliamps into 12v battery ( my little meter popped it’s fuse at 350 milliamps)
This setup seems to work better for charging 24v batteries which is what I wanted for my mobility scooter.