Hey everyone, wind energy newbie here, wondered if I could get some advice on which of the following would be the best route to go or if I should find a more effective motor to build my first wind turbine.
1) GS 2hp Permanent Magnet Motor Ratings 15 Amps 130 VDC @ 6600 RPM
2) Baldor DC Industrial Treadmill Motor 3hp 15 Amps 180V 3200 RPM
If I calculated correctly the 1st motor I posted would need to spinning at about 609 RPM's to produce 12V and the 2nd one seems more promising since it would produce 12v at 213 RPM's or so. I think the 1st one needs to spin way too fast so what would my options be to make a wind turbine out of it? Gearing it? Amplifying voltage circuit? In an ideal world I would like to put out 24v
The installation site would be an off grid farm that is on top of a small mountain that always has constant wind/breeze and its occasional high speed gusts. I believe the 1st motor (GS) is brushless and the 2nd one (Baldor) has brushes. If I can generate useful electricity I will definitely look into getting more motors/ building more windmills. The GS motor seems a little more simple, with just the positive and negative cables. The Baldor has a few more cables (Green, White Black on one side and thinner Red Green Black plug on the other) . I can only get a very low voltage reading when I spin it by hand out of the plug side, with no reading coming out of the back end (thicker cables). The person that gave me the motor mentioned that the brushes need to be replaced so I thought that may be the issue but I unscrewed the plugs holding them down and they seem fine with quite a bit of carbon left. I am new to dc motors/ wind energy so sorry for the dumb questions. Maybe someone has more experience with the industrial treadmill dc motors and can help me test it out with my multimeter (The numbers seemed great but I know that brushed motors aren't the top choice, got it for free so figured it was worth a try). It is from a Landice Treadmill you can see it in this youtube video:
https://www.youtube.com/watch?v=W2BZpKNWVEA . If not it is very similar to the one in the video.
I have access to another PM treadmill motor with the following specs: 2.65 hp130vdc 18 Amps at 6700 RPM but I figured it would also need higher RPM's to produce a usable voltage (I did get about 4 Volts spinning it by hand). I also have a small radiator fan motor laying around. I spun it around with a drill and got a little over 4 volts DC but I don't think I can do anything with that low of voltage but correct me if I am wrong. Oh there's also an old alternator sitting around if I could use it for anything.
Again I apologize if some of these things have been asked over and over. I have tried to read up on different diy windmill forums for a couple weeks. Cross posting on a few websites to see if I get more feedback. I do have a small solar system set up that I plan on adding to as budget allows, this should serve as a compliment to that since every time I go to the farm it is pretty windy although I haven't collected wind data over a period of time. Thanks a bunch