[TCML] homebrew VFD?

[Scott Bogard <sdbogard@xxxxxxxxx>]

Greetings all,
     While my intentions with this are completely off topic, the 
information could be extremely helpful for those running asynchronous 
rotaries, and I know of nobody else to ask this question, thus I fell no 
guilt putting it here.  I want to know if it is possible to essentially 
build a variable frequency drive, this is what I had in mind.  Get a 
mot, remove the windings then make your own to take 36V to 120V.  Drive 
the primary with a variable flyback type inverter, designed for 1-120 
Hz.  So we have a DC square wave entering the primary.  On the secondary 
put a capacitor sized to take a square wave and make it nearly 
sinusoidal (so perhaps a cap resonate with about 90 Hz?).  And then feed 
your secondary into your induction motor winding.  It seems to make 
sense in my head but it seems a bit too simple, perhaps the square wave 
will not really drive the mot core correctly because of saturation in 
which case I don't know what to do.  Any thoughts or should I just 
abandon this.

Scott Bogard.
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