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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Khafallah, Mohamed
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Control & Systems Engineering Electrical & Electronics Engineering

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Enhancing the efficiency of a dual three-phase permanent magnet synchronous motor with modified switching table for direct torque control Labchir, Fouad; Afia, Aziz El; Benkirane, Karim; Khafallah, Mohamed
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 3: September 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i3.pp1387-1398

Abstract

Conventional direct torque control (DTC) can be served to drive a dual three-phase permanent magnet synchronous motor (DTP-PMSM) by controlling the torque and speed. It relies on the direct application of controlled sequences through the use of a combination of dual hysteresis controllers with a transitioning table. In the course of conventional DTC implementation, there's generation of high armature current with lower-level harmonics, leading to increased losses that affect the machine's effectiveness. To enable a diminishment in these harmonics and consequently enhance the motor's efficiency, an approach to modify the conventional DTC is proposed. Specifically, this strategy involves adapting a new distribution of sectors and substituting the elements of the obtained switching table with synthetic elements. Simulated data validate the effectiveness of the chosen methodology.
Processor-in-the-loop performance validation of a three-phase NPC three-level inverter using a novel sinusoidal PWM technique for scalar control of an induction motor N’hili, Badr; Barakat, Souhail; Mesbahi, Abdelouahed; Khafallah, Mohamed; Nouaiti, Ayoub
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 4: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i4.pp2257-2270

Abstract

This paper presents the performance of a three-phase, three-level neutral point clamped inverter driving an induction motor for variable-speed applications, compared to a two-level inverter. The studied inverter operates using a novel sinusoidal pulse width modulation technique that improves the quality of voltage and current output signals while increasing efficiency. Motor speed control is achieved using the scalar control (V/Hz) method. Experimental validation of the simulation results is performed by executing the generated C code on the F28379D DSP LaunchPad within the MATLAB/Simulink and Code Composer Studio environment, applying the processor-in-the-loop (PIL) technique.
Co-Authors Afia, Aziz El Barakat, Souhail Benkirane, Karim Labchir, Fouad Mesbahi, Abdelouahed Nouaiti, Ayoub N’hili, Badr