Journal of Robotics and Control (JRC)
Vol 3, No 1 (2022): January

Induction Motor DTC Performance Improvement by Reducing Flux and Torque Ripples in Low Speed

Yassine Zahraoui (Mohammed 5 University, Mohammadia School of Engineering)
Mohamed Akherraz (Mohammed 5 University, Mohammadia School of Engineering)
Chaymae Fahassa (Mohammed 5 University, Mohammadia School of Engineering)
Sara Elbadaoui (Mohammed 5 University, Mohammadia School of Engineering)



Article Info

Publish Date
12 Jan 2022

Abstract

Since induction motors were invented, human civilization has changed forever. Due to their beneficial characteristics, induction motors are widely used and have become the most prevalent electrical counterparts. Many control strategies for induction motors have been developed, varying from scalar to vector control. In the class of vector control, the Direct Torque Control (DTC) was proposed as an alternative that ensures separated flux and torque control while remaining completely in a stationary reference frame. It offers direct inverter switching, reasonable simplicity than other vector control techniques, and less sensitivity to parameter variation. However, the use of hysteresis controllers in conventional DTC involves non-desired ripples in the system's flux and torque, which leads to bad system performances, primarily in low-speed operations. This paper aims to minimize the chattering and ensure the augmented system's performance in terms of robustness and stability. The proposed method is an improved version of DTC, which combines the addition of the Space Vector Machine (SVM) algorithm to the DTC and the increased number of DTC sectors that generate reference control voltages. Satisfactory results have been obtained by numerical simulation in MATLAB/Simulink. Eventually, the proposed method is proven to be a fast dynamic decoupled control that robustly responds to external disturbance and system uncertainties, especially in the low-speed range.

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Journal Info

Abbrev

jrc

Publisher

Subject

Aerospace Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Mechanical Engineering

Description

Journal of Robotics and Control (JRC) is an international open-access journal published by Universitas Muhammadiyah Yogyakarta. The journal invites students, researchers, and engineers to contribute to the development of theoretical and practice-oriented theories of Robotics and Control. Its scope ...