scholarly journals Improved DTC-SVM Based on Input-Output Feedback Linearization Technique Applied on DOEWIM Powered by Two Dual Indirect Matrix Converters

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5625
Author(s):  
Mourad Sellah ◽  
Abdellah Kouzou ◽  
Mostefa Mohamed-Seghir ◽  
Mohamed Mounir Rezaoui ◽  
Ralph Kennel ◽  
...  
Keyword(s):  
Induction Motor ◽  
Output Feedback ◽  
Feedback Linearization ◽  
Direct Torque Control ◽  
Industrial Applications ◽  
Torque Control ◽  
Input Output ◽  
Matrix Converters ◽  
Common Mode Voltage ◽  
Vector Modulation

This paper focuses on the application of the direct torque control based on space vector modulation (DTC-SVM), combined with the input–output feedback linearization (IOFL) technique on a three-phase dual open-end windings induction motor (DOEWIM) fed by two dual indirect matrix converters. The main aim of integrating the non-linear technique is to overcome the main drawbacks met within the application of the conventional DTC-SVM on dual-stator induction motor (DSIM), such as the torque and flux ripples reduction, the stator harmonics current minimization, and the elimination of the common-mode voltage (CMV). Furthermore, it is proved in this paper that the proposed control on DOEWIN can ensure more flexibility versus speed reverse and variation, load torque changes, and motor parameters variation. The obtained results prove the validity of the proposed control on the studied induction motor topology in ensuring the main aforementioned advantages compared to the conventional DTC-SVM control on DSIM, which presents a promising solution, especially in industrial applications in which high-power motors are required.

scholarly journals Reduction of torque ripple in DTC for induction motor using input-output feedback linearization

2011 ◽  
Vol 8 (2) ◽  
pp. 97-110 ◽  
Author(s):  
Sebti Belkacem ◽  
Farid Naceri ◽  
Rachid Abdessemed
Keyword(s):  
Output Feedback ◽  
Feedback Linearization ◽  
Direct Torque Control ◽  
Fast Response ◽  
Torque Ripple ◽  
Torque Control ◽  
Input Output ◽  
Flux Linkage ◽  
Rotor Resistance ◽  
Steady State Operation

Direct torque control (DTC) is known to produce fast response and robust control in AC adjustable-speed drives. However, in the steady-state operation, notable torque, flux, and current pulsations occur. In this paper a nonlinear DTC of IM drives is presented based on a Space Vector PWM scheme combined with Input-Output Feedback Linearization (IOFL) technique. The variation of stator and rotor resistance due to changes in temperature or frequency deteriorates the performance of DTC controller by introducing errors in the estimated flux linkage and the electromagnetic torque. As a result, this approach will not be suitable for high power drives such as those used in tractions, as they require good torque control performance at considerably lower frequency. Finally, extensive simulation results are presented to validate the proposed technique. The system is tested at different speeds and a very satisfactory performance has been achieved.

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