<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The direct torque and flux control (DTC) of electrical motors is characterized by ripples of torque and flux. Among the many solutions proposed to reduce them is to use modified switching tables which is very advantageous; because its implementation is easy and requires no additional cost compared to other solutions. This paper proposes a new reduced switching table (RST) to improve the DTC by reducing harmful ripples of torque and flux. This new switching table is smaller than the conventional one (CST) and depends principally at the flux error. This solution is studied by simulation under Matlab/Simulink and experimentally validated on a testbed with DSPACE1103. The results obtained of a DTC with RST applied to a three-phase induction motor (IM) show a good improvement and an effectiveness of proposed solution, the torque ripple decreases about 47% and 3% for the stator flux compared with a basic DTC.</p></abstract>

The direct torque and flux control (DTC) of electrical motors is characterized by ripples of torque and flux. Among the many solutions proposed to reduce them is to use modified switching tables which is very advantageous; because its implementation is easy and requires no additional cost compared to other solutions. This paper proposes a new reduced switching table (RST) to improve the DTC by reducing harmful ripples of torque and flux. This new switching table is smaller than the conventional one (CST) and depends principally at the flux error. This solution is studied by simulation under Matlab/Simulink and experimentally validated on a testbed with DSPACE1103. The results obtained of a DTC with RST applied to a three-phase induction motor (IM) show a good improvement and an effectiveness of proposed solution, the torque ripple decreases about 47% and 3% for the stator flux compared with a basic DTC.

High Ripples Reduction in DTC of Induction Motor by Using a New Reduced Switching Table

LEDMaSD Laboratory, Electrical Engineering Department, Laghouat University, BP 37G, Ghardaia Street, Laghouat (03000), Algeria

CRTT, IREENA, Saint Nazaire, Polytech’Nantes, France

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The direct torque and flux control (DTC) of electrical motors is characterized by ripples of torque and flux. Among the many solutions proposed to reduce them...

High Ripples Reduction in DTC of Induction Motor by Using a New Reduced Switching Table

Published Online: Jun 28, 2016

Page range: 206 - 211

Received: Feb 17, 2016

DOI: https://doi.org/10.1515/jee-2016-0029

Keywords
DTC, IM, CST, RST, torque ripple, flux ripple

© Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

High Ripples Reduction in DTC of Induction Motor by Using a New Reduced Switching Table

Published Online: Jun 28, 2016

Page range: 206 - 211

Received: Feb 17, 2016

DOI: https://doi.org/10.1515/jee-2016-0029

KeywordsDTC, IM, CST, RST, torque ripple, flux ripple

© Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
DTC, IM, CST, RST, torque ripple, flux ripple