CONTROL-SYSTEMS FOR INDUCTION MACHINES WITH MAGNETIC SATURATION

Extensions of field-oriented control methods for induction machines, a ccounting for magnetic saturation, are developed, The new methods are based on a nonlinear pi model for the saturated machine, This model is a more accurate represention of the saturation phenomena in the machi ne than are most previous models, and it is shown to also facilitate d evelopment of control algorithms, Observers for estimating rotor flux are also discussed. Experimental results verifying operation of one pr oposed control method are presented.