A Complete Sliding Mode Controlled DTC Drive For Induction Motor Control
Direct torque control (DTC) is known to produce fast response and robust control in AC adjustable-speed drives.
However, in the steady-state operation, notable torque, flux, and current pulsations occur. A new, direct torque and flux
control strategy based on sliding mode controller and sliding mode observer is proposed for direct torque control (DTC)
senserless induction motor drive. The control strategy combining complete sliding mode controller and sliding mode
observer is proposed and modelled in MATLAB/SIMULINK. The DTC transient merits and robustness are preserved and
the steady state behavior is improved by reducing the torque and flux pulsations. Simulations results with the proposed
control scheme are presented.
Index Terms— DTC, SVM, VSC, SLIDING MODE CONTROL (SMC), SLIDING MODE OBSERVER (SMO).