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Re: LF: DIY WIND GENERATOR

To: [email protected]
Subject: Re: LF: DIY WIND GENERATOR
From: Stefan Schäfer <[email protected]>
Date: Tue, 11 Jun 2013 21:28:11 +0200
In-reply-to: <CAMFjj72L5T7C4hW=NVyOuuDFM9JB34g7v+Ps+kQD1s58RxQmjA@mail.gmail.com>
References: <9A6FD89658AF451890E8709A003D5B7A@malHP> <[email protected]> <CAMFjj72L5T7C4hW=NVyOuuDFM9JB34g7v+Ps+kQD1s58RxQmjA@mail.gmail.com>
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Hi Warren, Mal, LF,

When answering to Mal about the topic, i also thought about removing the rectifier, first. But then i thought this could be problematic due to the wide range of frequencies which can go down to nearly DC. A mains transformer could become saturated then, or needs very high numbers of turns on both sides.
I think the best is to use a bridge of 6 FETs, e.g. IRFP4368 and a 3 phase ferrite transformer and build a suitable supply with an output voltage at say 200 DC. You can then distribute the power to the shack with a thin wire and us e.g. a simple normal SMPS for mains applications (like a standard 13.8V DC supply from the amateur store) and feed it with that 200V DC voltage.
Ignore the savety aspect ;-)

73, Stefan/DK7FC

Am 11.06.2013 17:23, schrieb Warren Ziegler:
Stefan, Mal,

   Very interesting project !
Automotive alternators are actually 3-phase ac alternators with a bridge rectifier to get d.c.
If you could remove the bridge you could feed the A.C. into a step-up transformer for transmission at higher voltage/lower current.

73 Warren K2ORS




On Tue, Jun 11, 2013 at 11:00 AM, Stefan Schäfer <[email protected]> wrote:
Mal,

100A?
What is the cable length Mal? 2x 100m, using 2,5mm^2? Or do you use an inverter next to the generator output to transform up to 200V or so?

73, Stefan/DK7FC

Am 10.06.2013 18:04, schrieb mal hamilton:
HOME BREW WIND GENERATOR 12V/100A
 
OLD CAR HEAVY DUTY ALTERNATOR, THE REST MADE FROM SCRAP
 
DE G3KEV
 



--
73 Warren K2ORS
                WD2XGJ
                WD2XSH/23
                WE2XEB/2
                WE2XGR/1

 
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