A New Direct Torque Control Strategy for Induction Motor Adjustable Speed Drives

Abstract

An new approach to Direct Torque Control (DTC) method is proposed in this paper for Induction Motor drives. In traditional DTC approach, two primary reference parameters are used as: flux and torque. In this paper, the new approach has been proposed to improve the Induction Motor dynamic performance. A primary difference from the conventional approach of it changed into that only one reference parameter (velocity) became used to Control the Induction motor and the second control parameter (flux) turned into received from speed errors through the proposed control set of rules. Thus, the DTC performance has been mainly stepped forward on structures which need variable speed and torque at some stage in operation, like electric motors. The dynamic models of the Induction Motor and the DTC approach have been created on Matlab/Simulink. The proposed technique has been showed and tested by means of the dynamic simulations on distinct operating situations.