Vectorial torque control (VTC): s novel approach to torque and flux control of induction motor-drives

摘要

A general approach to torque and flux control of induction motor fed by a VSI is described in the paper. It is independent on which kind of flux is controlled: rotor or stator one. On this ground, an algorithm can be set up which allows thegeneration of the inverter switching patterns as a function of the reference values both of the electromagnetic torque and of the controlled flux. Experimental comparisons with traditional direct torque control and field oriented control techniquesconfirm the possibility to achieve very high dynamic performances with the proposed strategy.