Ah, but that's the essence of Doug's query! Is there a transform that
can replace the Laplacian *S* correspondence with *jOmega* with a
transformed reactance?
I suspect there is, for a well-behaved 2nd order differential system.
But I suspect that wouldn't do for Doug's naughty generator app.
Frankly, neither do I, but I think I can do it in Mathcad if I use the
solver. There must be a transform.
There is, but how much method belies the madness is a devil in detail!
Well, if I can do this inverse plot I will have Q as a function of
frequency. That peak value of Q tells me some ratios like L/R or some
damn thing. With that, and a quick micrometer reading on a stator wire,
I can work out so many thicker wires would have such an inductance and
resistance. That will tell me if there's any hope of making R <
sqrt(L/C) by reducing R.
Awe, F'it Doug, make a binary C-box out of fine quality, over-sized
motor caps, and switch'em in to fine-tune the system for the energy
regime of interest, as you switch binary taps on your generator winding.
An empircal excersize that you can write a paper about fitting a curve to.
I'de be freaking over the saturation flux, but that shows my ignorance.
G'D power electronics is horribly naughty. Play games with your F'ng
computer, not simulations. Only G'D' thing their good for; aside from
wasting time on their troubles avoiding a fem's troubles.
My hypothesis is R and L will decrease linearly together with zero
intercept.
L is dependent on flux-density, that being determined mainly be the core
and its saturation flux, current and speed.
That means R will decrease more than sqrt(L) will decrease.
But isn't saturation flux, or the decrease in inductance with increasing
current (due to decreasing R) at issue? What is limiting your power and
efficiency? The amount of iron you are willing to peddle around!
However, since each value of L needs a value of C, I do not yet know
whether R > sqrt(L/C) can be changed to R < sqrt(L/C) by a rewind and a
new cap. I haven't worked that out. Unlike the inverse plot, this is
mere algebra.
Follow the energy. You want to change force into volt-amps, by means of
amp-meters in magnetized iron. Your motor core is the independent
variable. Copper-loss and window-fact for the desire volt-amps the
dependent variable.
Think of it as a transformer.
Scott
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DIY Piezo-Gyro, PCB Drill Bot & More Soon!
http://home.comcast.net/~scottxs/
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A strife of interests masquerading as a contest of principles.
The conduct of public affairs for private advantage. - Ambrose Bierce
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