scholarly journals Simulation of Electric Drive With Direct Torque Control of Induction Motor

2018 ◽  
Vol 15 (1) ◽  
Author(s):  
Yuri M. Inkov ◽  
Andrey S. Kosmodaminskiy ◽  
Alexander A. Pugachev ◽  
Elena V. Sachkova
Keyword(s):  
Induction Motor ◽  
Electric Drive ◽  
Induction Motors ◽  
Direct Torque Control ◽  
Torque Control ◽  
Voltage Source ◽  
Voltage Source Inverters ◽  
Electric Drives ◽  
Traction Electric Drive ◽  
Traction Drives

The main requirements for traction electric drives are listed and discussed. The direct torque control of an induction motor electric drive is established by a survey of operation modes of traction electric drives to thoroughly satisfy the requirements for traction electric drive. The topologies and operation principles of two-and three-level voltage source inverters are presented. The advantages and shortcomings of three-level voltage source inverters to be applied on locomotive traction drives are highlighted in relation to the two-level ones. The recommendations of choice between different voltage source inverter topologies are given. The topology and principles of operation of direct torque control of induction motors with two- and three-level voltage source inverters are described. The simulation peculiarities of electric drives with direct torque control and two- and three-level inverters in Matlab are considered. The simulation results are presented. The techniques to reduce the torque oscillations are shown and implemented in Matlab Simulink.

Induction Motor Traction Drive with Slipping Protection

2015 ◽  
Vol 792 ◽  
pp. 101-106 ◽  
Author(s):  
Alexander Pugachev
Keyword(s):  
Mathematical Modeling ◽  
Control System ◽  
Induction Motor ◽  
Direct Torque Control ◽  
Torque Control ◽  
Voltage Source ◽  
Traction Drive ◽  
Voltage Source Inverters ◽  
Electric Drives ◽  
Control Signals

The advantages and shortcomings of three-level voltage source inverters to be applied on locomotive traction electric drives are highlighted in relation to two-level ones. To protect wheels from slipping on rails, the control system is designed. The control system with protection from slipping uses system of direct torque control as the subordinated contour to produce control signals on voltage source inverter. The topology and principles of operation of both protections from slipping and direct torque control of traction induction motor with three-level voltage source inverters are described. The simplified structure of mechanical part of traction drive using basic and axle suspension is considered. The adequacy of designed control system is confirmed by means of Matlab, the results of mathematical modeling show a high convergence with the results of physical model of traction drive.

scholarly journals Direct torque control of doubly fed induction motor using three-level NPC inverter

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Najib El Ouanjli ◽  
Aziz Derouich ◽  
Abdelaziz El Ghzizal ◽  
Mohammed Taoussi ◽  
Youness El Mourabit ◽  
...  
Keyword(s):  
Induction Motor ◽  
Control Method ◽  
System Modeling ◽  
Direct Torque Control ◽  
Harmonic Distortion ◽  
Torque Control ◽  
Voltage Source ◽  
Modeling And Control ◽  
Voltage Source Inverters ◽  
Doubly Fed

Abstract This article presents the direct torque control (DTC) strategy for the doubly fed induction motor (DFIM) connected to two three-level voltage source inverters (3LVSIs) with neutral point clamped (NPC) structure. This control method allows to reduce the torque and flux ripples as well as to optimize the total harmonic distortion (THD) of motor currents. The use of 3LVSI increases the number of generated voltage, which allows improving the quality of its waveform and thus improves the DTC strategy. The system modeling and control are implemented in Matlab/Simulink environment. The analysis of simulation results shows the better performances of this control, especially in terms of torque and flux behavior, compared to conventional DTC.

scholarly journals Simulation of Traction Electric Drive with Vector Systems of Direct Torque Control

2015 ◽  
Vol 2 ◽  
pp. 106
Author(s):  
Ilya Fedotov ◽  
Vyacheslav Tikhonov
Keyword(s):  
Control Systems ◽  
Electric Drive ◽  
Asynchronous Motor ◽  
Direct Torque Control ◽  
Harmonic Distortion ◽  
Torque Control ◽  
Electric Drives ◽  
Advantages And Disadvantages ◽  
Traction Electric Drive ◽  
Vector Systems

The article deals with investigation of electromechanical and energetic characteristics of traction electric drive with vector systems of direct torque control. As a controlled object the traction asynchronous motor ДТА-1У1, which is used to drive the trolley-bus is considered. At the present time the usage of traction asynchronous electric drives for town transport is relevant. Due to development of power electronic devices and microprocessor-based control systems it became possible to replace DC electric drives with electric drives with asynchronous motors. The article contains brief description of two different types of control systems: field-oriented control (FOC) and direct torque control (DTC). Principles of work for both systems are considered and the main advantages and disadvantages associated with the use of these systems are pointed out. The models of both systems for traction asynchronous electric drive, built in modeling environment MATLAB/Simulink, are given in this article for further comparative analysis. As the main quality factor of control total harmonic distortion (THD) is used.

Direct Torque Control of Induction Motors Utilizing Three-Level Voltage Source Inverters

2008 ◽  
Vol 55 (2) ◽  
pp. 956-958 ◽  
Author(s):  
Xavier del Toro Garcia ◽  
Antoni Arias ◽  
Marcel G. Jayne ◽  
Phil A. Witting
Keyword(s):  
Induction Motors ◽  
Direct Torque Control ◽  
Torque Control ◽  
Voltage Source ◽  
Voltage Source Inverters

scholarly journals Direct Torque Control of Two Induction Motors Using the Nine-Switch Inverter

2018 ◽  
Vol 9 (4) ◽  
pp. 1552
Author(s):  
Draoui Abdelghani ◽  
Allaoua Boumediène
Keyword(s):  
Induction Motors ◽  
Direct Torque Control ◽  
Industrial Applications ◽  
Torque Control ◽  
Voltage Source ◽  
Voltage Source Inverter ◽  
Voltage Source Inverters ◽  
Semiconductor Switches ◽  
Control Scheme ◽  
Stator Flux

<span lang="EN-US">The Nine-Switch Inverter</span><span lang="EN-US">(NSI) is a recently developed dual output converter. It can be used to drive two three-phase loads independently. As a substitute to two separate conventional voltage source inverters, the NSI has been, already, proposed in various industrial applications to reduce the number</span><span lang="EN-US">of semiconductor switches and its associated energy losses and drive circuitry. On the other hand, the Direct Torque Control</span><span lang="EN-US">(DTC) is a robust control scheme of AC motors, which consist of selecting proper state vectors of a conventional voltage source inverter. The NSI, having a different working principle from the conventional voltage source inverter and taking into account the varying influence of active space vectors on motor’s torque and stator flux, a Direct Torque Control is suggested in this paper to, efficiently, drive two induction motors independently, while minimizing the torque and stator flux ripples of both motors. Simulations results confirm the effectiveness of the proposed algorithm. In addition, application of this newly proposed control scheme in operation of an Electric Vehicule</span><span lang="EN-US">(EV) is demonstrated.</span>

scholarly journals Latest Advances in DTC Control of Induction Motors

2020 ◽  
Vol 8 (6S) ◽  
pp. 120-123
Keyword(s):  
Induction Motor ◽  
Predictive Control ◽  
Induction Motors ◽  
Adaptive System ◽  
Sliding Mode ◽  
Direct Torque Control ◽  
Torque Ripple ◽  
Torque Control ◽  
Model Reference Adaptive System ◽  
Model Reference Adaptive

In these days, developments in the area of Induction Motor control is increasing significantly. Considerable advancements have been taken place in the area of Direct Torque Control (DTC), which is capable of providing quick dynamic response with respect to torque and flux. This paper presents a detailed survey on various latest techniques of DTC control of Induction Motor such as DTC-SVM with hysteresis band, DTCSVM with Model Predictive Control, DTC with sliding mode control, DTC with Model reference adaptive system (MRAS) et cetera. The simulation results are discussed for DTC-SVPWM topology and results obtained proves that this method has reduced torque ripple

scholarly journals Minimization of Torque Ripple in DTC of Induction Motor Using Fuzzy Mode Duty Cycle Controller

2011 ◽  
Vol 7 (1) ◽  
pp. 42-49
Author(s):  
Turki Abdalla ◽  
Haroution Hairik ◽  
Adel Dakhil
Keyword(s):  
Induction Motor ◽  
Duty Cycle ◽  
Direct Torque Control ◽  
Torque Ripple ◽  
Operating Conditions ◽  
Torque Control ◽  
Voltage Source ◽  
Ratio Method ◽  
Duty Ratio ◽  
Switching Frequency

Among all control methods for induction motor drives, Direct Torque Control (DTC) seems to be particularly interesting being independent of machine rotor parameters and requiring no speed or position sensors. The DTC scheme is characterized by the absence of PI regulators, coordinate transformations, current regulators and PWM signals generators. In spite of its simplicity, DTC allows a good torque control in steady state and transient operating conditions to be obtained. However, the presence of hysterics controllers for flux and torque could determine torque and current ripple and variable switching frequency operation for the voltage source inverter. This paper is aimed to analyze DTC principles, and the problems related to its implementation, especially the torque ripple and the possible improvements to reduce this torque ripple by using a proposed fuzzy based duty cycle controller. The effectiveness of the duty ratio method was verified by simulation using Matlab/Simulink software package. The results are compared with that of the traditional DTC models.

scholarly journals COMPARATIVE ANALYSIS OF CONTROL SYSTEMS FOR A VOLTAGE SOURCE INVERTERS FOR AC DRIVES

2021 ◽  
Author(s):  
Nikolay Chuprina
Keyword(s):  
Comparative Analysis ◽  
Control Systems ◽  
Electric Drive ◽  
Synchronous Motor ◽  
Drive System ◽  
Voltage Source ◽  
Voltage Source Inverters ◽  
Electric Drives ◽  
Ac Drives ◽  
Electric Drive System

The brief survey of electric drives implicated in both industry and transport are carried out. The results of comparison of control systems of a voltage source inverters included in an electric drive system with an asynchronous or synchronous motor are presented. The results were obtained by means of Matlab.

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