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Evaluation of Direct Torque Control for High-Power Induction Motor Drive


Evaluation of Direct Torque Control for High-Power Induction Motor  Drive
Authors : SatyaPrasanthYalla, Sarmila Har Beagam
Publication Date: 25-09-2012

Authors

Author(s):  SatyaPrasanthYalla, Sarmila Har Beagam

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Vol.1 - Issue 7 (September - 2012)

e-ISSN:   2278-0181

Abstract

Direct Torque Control with Multilevel Inverter (DTC-MLI) has emerged recently in high dynamics AC drives fields for induction machines or permanent magnet machines application. Direct Torque Control (DTC) has the characters such as combined simplicity and robustness with excellent performance of torque control for the drive system. In this paper, DTC technique for drive system fed on three-level inverter and induction motor is presented, which means to select and compose right voltage vectors varying from speed working in constant torque area. The simulation results confirm that the control method is very effective with greater number of levels in the output voltage waveforms, lower dv/dt, less harmonic distortion and lower switching frequencies

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