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القائمة البريدية
التصويت: مؤتمر التخطيط الافتراضي والمدن الاليكترونية
للكاتبين Farouk. M. Abdel-Kader, A. E. Kalas, A. El-Saadawi, Osama M.El-Baksawi
Faculty of Engineering, Port- Said, Electrical Engineering Dept., Suez Canal University, Egypt
ABSTRACT
Direct torque control (DTC) has, over the years, become of the most popular methods of control for
induction motors (IM) drive system. No pulse width modulation (NPWM) techniques are preferred
due high switching frequency. Torque ripple is major difficulty in direct controlled induction motors.
The reference value of the motor flux influences the torque ripple. A control is proposed to determine
the reference value of the flux according to the value of the motor torque. The results of the Matlab-
Simulink simulations with different algorithms such as classical DTC, SVM-DTC method and SVMDTC
with PI controller direct torque control without hystersis band has been compared. The results
indicate that the proposed algorithm model of SVM-DTC with PI controller and without hystersis
band give a good agreement. The average torque ripple reduction is reduced over 60% with SVMDTC
with PI controller method compared with classical DTC and is reduced by 6% compared with
SVM-DTC.
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