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Author Topic: 48 volt wind generator  (Read 15651 times)

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PRedATor

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48 volt wind generator
« on: April 04, 2005, 10:57:25 AM »
14" rotors with 12 36mm x 50mm x 10mm neo mags





10 of 0.8mm 270 turn coils

















turning by hand at 2 rev a sec (120rpm) I get a reading of around 4volts unloaded with just the rear rotor on.  Thats just connected on two of the wires from two coils coming out of the stator as it has a ring of neutral.





My half carved 5 foot blades for a 10' machine





From hughes book but with some mods as I didn't want to buys more bits.

Does this project look ok for now and any suggestions or questions


Regards


Rich

« Last Edit: April 04, 2005, 10:57:25 AM by (unknown) »
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zubbly

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Re: 48 volt wind generator
« Reply #1 on: April 04, 2005, 05:24:43 AM »
Hi Rich!


looks like its a great unit. I am a little puzzled though. I notice 12 mags, but 10 coils. I don't recall this arrangement. Maybe its just me. usually you see 12 mags and 9 coils.


have fun!


zubbly

« Last Edit: April 04, 2005, 05:24:43 AM by zubbly »
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PRedATor

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Re: 48 volt wind generator
« Reply #2 on: April 04, 2005, 05:51:05 AM »
Hi Zubbly,


Its 5 phase instead of 3 phase, thus the 10 coils, 2 for each phase.


cheers


Rich

« Last Edit: April 04, 2005, 05:51:05 AM by PRedATor »
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GBillerty

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Re: 48 volt wind generator
« Reply #3 on: April 04, 2005, 06:05:40 AM »
I think is is doing like Huges book plans: 12 mags and 10 coils five phases.

« Last Edit: April 04, 2005, 06:05:40 AM by GBillerty »
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Flux

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Re: 48 volt wind generator
« Reply #4 on: April 04, 2005, 06:14:27 AM »
Looks great, get the second rotor on and check the volts again. I have a feeling that it may be a little fast for 10ft blades at 48v. All depend on how it behaves with the second rotor.


From your figures it looks to be heading for 24v. What magnets have you used?


Flux

« Last Edit: April 04, 2005, 06:14:27 AM by Flux »
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Flux

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Re: 48 volt wind generator
« Reply #5 on: April 04, 2005, 06:27:51 AM »
Sorry, you did give the magnet size. That should work out for 48v as long as your stator is not more than 14 to 15 mm thick. Try the second rotor, it usually doubles the volts but in this case it ought to do better, your stator must be significantly thicker than the 10mm of the magnets.


Should make a really nice machine. Keep us posted on the results.


Flux

« Last Edit: April 04, 2005, 06:27:51 AM by Flux »
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PRedATor

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Re: 48 volt wind generator
« Reply #6 on: April 04, 2005, 07:21:17 AM »
Hi Flux,


The stator is 13mm thick with the back rotor about 1mm - 1.5mm gap from it.


I'm quite anxious about how I'm going to put the front rotor on without it slamming down, getting it all square, the nuts all the same distance etc as once its on It'll be hard to get off and adjust.

Any ideas


cheers


rich

« Last Edit: April 04, 2005, 07:21:17 AM by PRedATor »
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DanB

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Re: 48 volt wind generator
« Reply #7 on: April 04, 2005, 07:29:38 AM »
you really should have 3 or 4 jacking screws.  (drill and tap 3 or 4 holes in the front rotor so you can lower it down/raise it off safely).


Looks super!  Be fun to see it finished/hear the results.

« Last Edit: April 04, 2005, 07:29:38 AM by DanB »
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PRedATor

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Re: 48 volt wind generator
« Reply #8 on: April 04, 2005, 07:35:38 AM »
Hi DanB,


That was a quick reply heh!


What size tap do you recommend? I'll do 3 (less holes :) )


rich

« Last Edit: April 04, 2005, 07:35:38 AM by PRedATor »
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DanB

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Re: 48 volt wind generator
« Reply #9 on: April 04, 2005, 07:44:39 AM »
If your in 'metric land'... I wouldn't know.

Here I use 1/2" - 13 - the same stuff you made the 5 studs from would be good.

if your very patient... and put an almost 90 deg 'bend' in a wrench - you can lower it safely and raise it off by poking a wrench through the hole in the front rotor I think.  (maybe not in your case.. sometimes that works though).  such wrench can also be handy for getting the airgap adjusted perfectly - and getting the front rotor to run true.
« Last Edit: April 04, 2005, 07:44:39 AM by DanB »
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Flux

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Re: 48 volt wind generator
« Reply #10 on: April 04, 2005, 08:22:48 AM »
Yes M10 or M12 will do fine. Keep the jacking screws as far out as the hole in your stator will allow. Keep adjusting them down in step, if the gap gets unequal it will tip over even with the jacking screws in place.


Flux

« Last Edit: April 04, 2005, 08:22:48 AM by Flux »
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picmacmillan

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Re: 48 volt wind generator
« Reply #11 on: April 04, 2005, 10:36:14 AM »
on my first one, i didn't tap it cuz i was in a hurry, but what i used was the cuott peices from the blades as the chunk of wood tapers ot a point..i used two of them and tapped the wood in and then back out to set the plates down.,..just a thought...looks good :)  pickster
« Last Edit: April 04, 2005, 10:36:14 AM by picmacmillan »
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PRedATor

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Re: 48 volt wind generator
« Reply #12 on: April 05, 2005, 05:57:08 AM »
I've had to move the back rotor from the rear of the hub to the front as my nuts  are too thick for a resonable airgap.  The rods and nuts are 5/8.

Still working on getting the front rotor on.


rich

« Last Edit: April 05, 2005, 05:57:08 AM by PRedATor »
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PHinker

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Re: 48 volt wind generator
« Reply #13 on: April 05, 2005, 08:24:40 AM »
Looks good, Rich.  I see that you're sending pictures from the future.  Give me a call and let's talk about stocks :) :)


Paul

« Last Edit: April 05, 2005, 08:24:40 AM by PHinker »
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PRedATor

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Re: 48 volt wind generator
« Reply #14 on: April 05, 2005, 10:27:55 PM »
In this part of the earth Paul we have the day first then the month then the year when writing the date :))) look straight down and wave I'm about 12500km looking up at you. heh


cheers


Rich

« Last Edit: April 05, 2005, 10:27:55 PM by PRedATor »
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JYL

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Re: 48 volt wind generator
« Reply #15 on: April 06, 2005, 01:40:00 AM »
Great work.  Look very good.


It is still Apr 9, 2005...  or Sept 4, 2005


Either way, this is the future.


J-Y

« Last Edit: April 06, 2005, 01:40:00 AM by JYL »
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PRedATor

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Re: 48 volt wind generator
« Reply #16 on: April 07, 2005, 06:39:58 PM »
Here are the numbers for Saturdays Lotto :


12, 25, 16, 2, 30, 7


:))

« Last Edit: April 07, 2005, 06:39:58 PM by PRedATor »
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Lev

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Re: 48 volt wind generator
« Reply #17 on: May 09, 2005, 08:24:03 PM »
Well is made.

 In Russia such designs are not popular. Electricity is very cheap. Frequently for it do not pay... I whant made windgenerator to my yacht.
« Last Edit: May 09, 2005, 08:24:03 PM by Lev »
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pyrocasto

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Re: 48 volt wind generator
« Reply #18 on: May 09, 2005, 09:39:51 PM »
April 9th wouldnt be the future. ;)


Looks good Pred, keep up the work and get that second rotor on. :-)

« Last Edit: May 09, 2005, 09:39:51 PM by pyrocasto »
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