The Direct Torque Control of Induction Motor to Basis of the Space Vector Modulation

Abstract

This paper presents a new approach to direct torque control (DTC) of induction motor drive based on space vector modulation (SVM) with constant switching frequency. With the proposed strategy, the error between the estimated and the reference for stator flux linkage and torque will be compensated by synthesised voltage space vector accurately. The simulation results verified that the proposed DCT-SVM method can improve the system robustness, evidently reduce the torque and flux ripples, and effectively enhance the steady state performance of this regulation