Re: [s-w-h] Basic Magnet Advise Plz
- I wanna 2nd guess someone who's making a generator
for a VAWT. My magnetics experience is limited to some
old toroidal cores we would for a small 20KHz switching
power supply, & I'm a little behind in my research to assist
him. He's on a tight timeline and a budget.
He's selected some wedge shaped magnets. V nice.
Pricey. And I just don't have the details handy, so this
is a general question or two. It concerns the overall pro
vs con with these wedge shapes & round magnets.
Sure, the wedge pack tightly so a slightly smaller diameter
machine rotor can be made. But for the addition of an inch
or 2, so what, if the price is better.
Is there an advantage for the wedges, as they cut the
wedge shaped coil flux, giving a better wave form? I
can't see that. It seems to be that the coils would be
harder to wind than for a round one, and round would
be a cheaper magnet. All we have to do is match flux
densities and overall Gauss, yes?
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