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 Moving from water to wind, alternator to permag dc
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Turgorunner
Starting Member


Canada
1 Posts

Posted - 06/01/2008 :  00:00:42  Show Profile Send Turgorunner a Private Message  Reply with Quote
Can someone tell me please if I have made a decent choice for a motor to use in a small wind project?
My experience w/ re systems has been limited to a homemade microhydro system made from an industrial AC/Delco alt. direct coupled to four inch turgorunner. I have since moved to another proeprty which is windy but has no water. My alt system used to require a field charge, but otherwise was straightforward.
I hope to get 12+ volts to charge batteries,
How do these specs sound for a small wind turbine motor?

Permanent magnet motor /w brushes
HP 2-1/2 at 130 VDC int.
1-1/2 at 95 VDC cont.
95-130 VDC
18.5 Amps
0-6750 RPM
Rotation reversible

Any help would be greatly appreciated... Oh yeah, I now have some microhydro stuff for sale!

Thanks!

speo
Junior Member



Canada
112 Posts

Posted - 06/01/2008 :  04:01:17  Show Profile Send speo a Private Message  Reply with Quote
Hi Turgorunner,

I am in Mississauga (Toronto), where are you located?

I think your motor turns with 6750 RPM at 130VDC.

Based on the fact that the voltage variation is linear with RPM variation, to generate 13VDC you need at least 675 RPM. To charge a 12V battery you need an even higher RPM.

675 RPM for start making usable power is quite high and I think your motor is not suitable for a direct drive wind generator. You can try to gear it up.

What microhydro stuff do you have for sale?

Speo

www.windpulse.com
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