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Wind Generator with Hard Drive Magnets | 44 comments (44 topical, editorial)

Re: Wind Generator with Hard Drive Magnets (3.00 / 0) (#21)
by mrkooo (mrkooo@hotmail.com) on Sat Oct 1st, 2005 at 07:03:02 PM MST
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What is the differences between connecting it in star than seerately each phase. What advantages and disadvantages.
I think that maybe more V if after rectifying the 3 DC I connect it in series than if I connect it in star. And what about the amps?

Thanks
Francisco

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Re: Wind Generator with Hard Drive Magnets (3.00 / 0) (#22)
by electrondady1 on Sun Oct 2nd, 2005 at 07:34:07 AM MST
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hello and congratulations mr.koo.
i have had good luck. in another town, i got 8 more harddrives from the computor stores there .
some harddrives contain only one magnet which is double thickness. i intend to use these magnets as the default thickness.others will need to be dubble to match.

gurd, i asked this question in hikers post. what about a coil for each pole (single phase) but three layers thick,= three phase?

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Re: Wind Generator with Hard Drive Magnets (3.00 / 0) (#23)
by mrkooo (mrkooo@hotmail.com) on Sun Oct 2nd, 2005 at 08:49:42 AM MST
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elctrondady, how you are planing to make the alternator, breaking the magntes in two pieces or with the 2 poles per face.

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Re: Wind Generator with Hard Drive Magnets (3.00 / 0) (#24)
by electrondady1 on Sun Oct 2nd, 2005 at 09:30:50 PM MST
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its more work, but if i cut them up i will have more control over the size and shape of the coil. i like long coils

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Re: Wind Generator with Hard Drive Magnets (3.00 / 0) (#25)
by electrondady1 on Sun Oct 2nd, 2005 at 10:20:11 PM MST
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one thing i noticed, there seems to be a lot of different thicknesses ,

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Re: Wind Generator with Hard Drive Magnets (3.00 / 0) (#27)
by ghurd on Mon Oct 3rd, 2005 at 08:28:50 AM MST
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The 3 layer thick stator. Look around here for overlapping coils, or a 12/36 arrangement, and look at windstuffnow Ed's 18/27 "Alt from scratch". Better suited for a single-rotor, or maybe with real thick magnets, due to too much material at the top and bottom of the coils.
Also have a look at Ed's old post '3 phase vs. 3 phases' it might be called.
I have a single rotor 6/9 or 8/12 about half done. High hopes. Too busy to get more done for a while.
Just finished last years taxes(!) last night. 2 extensions, No kidding.
G-

[ Parent ]

Re: Wind Generator with Hard Drive Magnets (3.00 / 0) (#26)
by ghurd on Mon Oct 3rd, 2005 at 08:13:17 AM MST
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I had a couple projects with too high resistance, too many coil turns, and too low cut in speed.
They worked better rectified seperatly, like 3 seperate single phase generators in 1 stator. Normaly it is not the best idea.
G-

[ Parent ]

Re: Wind Generator with Hard Drive Magnets (3.00 / 0) (#28)
by electrondady1 on Tue Oct 4th, 2005 at 07:26:30 AM MST
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the last two i built were disapointing as well, but they were both experiments so i won't let that stop me . i learned alot !

[ Parent ]

Wind Generator with Hard Drive Magnets | 44 comments (44 topical, 0 editorial)

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