Yf. Zhao et Ta. Lipo, SPACE VECTOR PWM CONTROL OF DUAL 3-PHASE INDUCTION MACHINE USING VECTOR-SPACE DECOMPOSITION, IEEE transactions on industry applications, 31(5), 1995, pp. 1100-1109
The technique of vector space decomposition control of voltage source
inverter fed dual three-phase induction machines is presented in this
paper. By vector space decomposition, the analytical modeling and cont
rol of the machine are accomplished in three two dimensional orthogona
l subspaces and the dynamics of the electromechanical energy conversio
n related and the nonelectromechanical energy conversion related machi
ne variables are thereby totally decoupled. A space vector PWM techniq
ue is also developed based on the vector space decomposition to limit
the 5th, 7th, 17th, 19th,... harmonic currents which in such a system
would be otherwise difficult to control. The techniques developed in t
his paper can be generalized for the control of an induction machine w
ith an arbitrary number of phases.