Tag Archives: Direct Torque Control

Design and MATLAB Simulation Modeling using Digital control system Techniques of Direct Torque Control for Three Phase Induction Motor (Published)

This paper presents, the Direct Torque Control (DTC) scheme for Induction Motor Drive using Space Vector Modulation (SVM) technique is studied using MATLAB Simulink. The MATLAB Simulink consists of an induction motor mathematical model using Direct Quadrate method, a two-level hysteresis comparator for stator flux control, a three-level hysteresis comparator for torque control, a switching table for voltage vector selection, stator flux position identifier, a three- phase voltage source inverter (VSI), flux and torque estimators, PI speed controller. The simulation of DTC schemes has been carried out using MATLAB/SIMULINK and the results are discussed. From estimated speed of simulation result it has good transient and steady state performance with overshoot 1.531% and with approximated steady state error 0.0002. Steady state estimated stator flux module has fluctuation from the reference value with an error of 0.525% maximum ripple.

Keywords: Direct Torque Control, Flux Controller, Flux and Torque Estimator, Torque Controller