An Investigation on Twelve Sectors Direct Torque Control for Induction Motors fed by Matrix Converter

Việt, Nguyễn Hoàng; Paraschiv, Nicolae

doi:10.1109/ecai50035.2020.9223148

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…Several studies stated that the increase of the number of the sectors reduced the high ripples and current harmonics slightly [33] [34] [35]. Moreover, the addition of SVM algorithm provides good dynamics in high and low-speed range [36]. The diagram of torque and flux control based on the proposed 12sector DTC with SVM algorithm is represented in Fig.…”

Section: Twelve Sectors Dtc Schemementioning

confidence: 99%

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

Zahraoui

Akherraz

Elbadaoui³

2022

Journal of Robotics and Control

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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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Section: Twelve Sectors Dtc Schemementioning

confidence: 99%

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

Zahraoui

Akherraz

Elbadaoui³

2022

Journal of Robotics and Control

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“…In order to achieve this objective, many researchers have focused on developing several control algorithms. Recently, an innovative control method, called Direct Torque Control (DTC) is introduced because of its capability to produce a fast torque control for the IM without to use much on-line computation as it's in field oriented control [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

mentioning

confidence: 99%

“…To overcome these problems, a variety of techniques with different concepts are described in the literature. Some of diverse proposed solutions include DTC with; space vector modulation, various power converter topologies such as: multi-level inverter and matrix converter, sensorless control methods, optimal stator flux estimation for high speed operation and artificial intelligence techniques (fuzzy or neuro controllers) [1,2,[4][5][6][7][8][14][15][16][17][18][19][20][21]. These methods achieve certain improvements such as reduction of torque ripples and fixed switching frequency operation.…”

mentioning

confidence: 99%

Performance enhancement of direct torque control induction motor drive using space vector modulation strategy

Moussaoui

2022

Electrical Engineering & Electromechanics

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Purpose. The main objective of this work is to demonstrate the advantages brought by the use of space vector modulation technique in the direct torque control of the induction motor. To achieve this purpose, two different direct torque control approaches (with space vector modulation) are proposed and studied from a comparative aspect with each other and with the conventional direct torque control. The novelty of this work consists in the employment of an Integral-Proportional (IP) speed controller in the two proposed direct torque control approaches and a more in-depth evaluation for their performance mainly the switching frequency of inverter semiconductor components and motor torque ripples. Methods. Two different direct torque control approaches that use the space vector modulation strategy and/or fuzzy-logic control, are described in detail and simulated with IP speed controller. The simulation experiments are carried out using Matlab/Simulink software and/or fuzzy-logic tools. Results. Practical value. Comparison results show that the two proposed direct torque control structures (with space vector modulation) exhibit a large reduction in torque ripples and can also avoid random variation problem of switching frequency (over a wide range of speed or torque control). On the other hand, the use of IP speed regulator ensured good dynamic performance for the drive system as well as considerably minimized peak overshoot in the speed response. Practically all of these benefits are achieved while retaining the simplicity and the best dynamic characteristics of the classical direct torque control, especially with the modified direct torque control approach in which the design or implementation requires minimal computational effort.

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Construct a Fuzzy Rule Table with the Direct Torque Control Principle

Viet,

Dai

2024

2024 16th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)

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An Investigation on Twelve Sectors Direct Torque Control for Induction Motors fed by Matrix Converter

Cited by 4 publications

References 7 publications

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

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

Performance enhancement of direct torque control induction motor drive using space vector modulation strategy

Construct a Fuzzy Rule Table with the Direct Torque Control Principle

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