thats not much help at all.
Analysis of electrical machinery, Krause et al
matrix and space-phasor theory of electrical machine, G.J. Retter
(this is a GREAT book).
OR google Parke and Clarke tranformations
OR figure it out with high-school trigonometry. the idea is this: with 3
rotating phases, separated by a fixed angle, the system is
over-determined (more equations than variables). This is even more so
when all three vectors are balanced. you can thus represent a balanced
3-phase set of vectors with a SINGLE vector, rotating at the same
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