Induction Motor DTC Performance Improvement by Inserting Fuzzy Logic Controllers and Twelve-Sector Neural Network Switching Table

Chaymae Fahassa, Yassine Zahraoui, Mohammed Akherraz, Mohammed Kharrich, Ehab E. Elattar and Salah Kamel
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Chaymae Fahassa: Department of Electrical Engineering, Mohammadia School of Engineering, Mohammed V University, Rabat 10090, Morocco
Yassine Zahraoui: Department of Electrical Engineering, Mohammadia School of Engineering, Mohammed V University, Rabat 10090, Morocco
Mohammed Akherraz: Department of Electrical Engineering, Mohammadia School of Engineering, Mohammed V University, Rabat 10090, Morocco
Mohammed Kharrich: Department of Electrical Engineering, Mohammadia School of Engineering, Mohammed V University, Rabat 10090, Morocco
Ehab E. Elattar: Department of Electrical Engineering, College of Engineering, Taif University, Taif 21944, Saudi Arabia
Salah Kamel: Department of Electrical Engineering, Faculty of Engineering, Aswan University, Aswan 81542, Egypt

Mathematics, 2022, vol. 10, issue 9, 1-14

Abstract: Human civilization has changed forever since induction motors were invented. Induction motors are widely used and have become the most prevalent electrical componentsdue to their beneficial characteristics. Many control strategies have been developed for their performance improvement, starting from scalar to vector to direct torque control. The latter, which is a class of vector control, was proposed as an alternative to ensure separate flux and torque control while remaining completely in a stationary reference frame. This technique allows direct inverter switching and reasonable simplicity compared to other vector control techniques, and it is less sensitive to parameter variation. Yet, the use of hysteresis controllers in conventional DTC involves undesired ripples in the stator current, flux, and torque, which lead to bad performances. This paper aims to minimize the ripple level and ensure the system’s performance in terms of robustness and stability. To generate the appropriate reference control voltages, the proposed method is an improved version of DTC, which combines the power of fuzzy logic, neural networks, and an increased number of sectors. Satisfactory results were obtained by numerical simulation in MATLAB/Simulink. The proposed method was proven to be a fast dynamic decoupled control that robustly responds to external disturbance and system uncertainties.

Keywords: induction motor drive; fuzzy logic control; neural network switching table; twelve-sector DTC; total harmonic distortion; flux distortion; torque and current pulsation; harmonic reduction (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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