Check out my web tutorial/diary
For anyone interested, I can also recommend this site:
Good DIY information + be sure to check out the forums there.
My first post here!
One of the frustrating things I find when reading these wind power how to’s is the lack of detail about slip rings!
The generator, blades and tower are not hard to build, what will make a good installation is how power is transmitted from the generator.
This is why I prefer a savernious or VAWT, that and you don’t have to worry about overspeed issues.
VAWT’s have enormous startup torque compared to a HAWT.
I’ve built a small turbine from 4" pvc pipe and I’m going to try using a brushless model aircraft motor as a generator.
The brushless motor in my UAV can pull 20A @ around 12V.
I used to live down the street from a photocopier repair shop, the guy who owned the place let me salvage bearings and, oh joy of joys, nylon gears!
I’ll keep you posted on my progress.
I might be wrong, but I think you’ll find brushless DC motors use a 3-pahse invertor within their structure to make the motor motor. The process is not reversible ie turning the motor shaft will not make volts on the DC terminals
Yes it will, it will just be AC voltage. All you have to do is convert the AC to DC and voila!
I’ve already tried it with a drill rotating the motor, it works!
And yes it does produce AC, the correct term is “alternator”, so I’ll use 2 bridge rectifiers to get DC.
ANY coil passing through a magnetic field will produce current.