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photo test of new alternator
By troy, Section Homebrewed Electricity Posted on Fri Apr 4th, 2003 at 02:18:49 PM MST
Here's a pic of the start of my new alternator,

Here's a pic of the start of my new alternator, dubbed the S-10 Hurricane, because it uses wheel bearings from an S-10, and I hope it's tough enough to withstand 120 mph winds, as in a hurricane.
testing testing testing

photo test of new alternator | 3 comments (3 topical, 0 editorial)

Dual Disc's (none / 0) (#1)
by Bruce Downunder on Fri Apr 4th, 2003 at 04:33:14 PM MST
(User Info)

I have been assembling two stators with a common shaft to drive the rotors. I'll try and post soon , but it's similar to the dual Fisher and Paykel I've posted either in the IRC photo album or on the old board. Bruce.

Dual stators (none / 0) (#2)
by troy on Sat Apr 5th, 2003 at 08:57:01 AM MST
(User Info)

Hi Bruce,

I am intrigued with the dual stator approach to reduce cogging, though I am also very hopeful that my air core dual rotor machine will have basically zero cogging. I'm hoping for 1.3 kilowatts at 30 mph.

I look forward to seeing your pics.

Best regards,

troy

Re: New alternator (none / 0) (#3)
by Crippy on Sat Apr 5th, 2003 at 08:34:36 PM MST
(User Info) http://windpower.jkcc.com

Looks nice. While building my first one, I have a few sketches of a dual rotor machine too. I was planning to make the stator out of fiberglass resin with the coils imbedded in it similar to the Piggott example. I'm going to use 1/8" plate steel for the magnet disks too. In mine though, due to the strength of the magnetic field, I was going to have two layers of coils - in essence, making it a 2 phase machine. I figured that what I'd be losing from the second layer of coils being so far from the magnets on the furthest of the two rotors, would be compensated for in the fact that the magnets on either side would amplify the field to a higher strength than a single rotor with laminates would. Maybe I'm off in that assumption though :)

Having double the magnets at double the cost sort of bugged me too, so I figured a second layer of coils could offset and fill in the holes of the first layer's coils. :)

Windpower - first attempt

photo test of new alternator | 3 comments (3 topical, 0 editorial)

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