Direct Torque Control with Sliding mode Feedback Linearization for SVM Inverter Fed Induction Motor Drives

Authors(3) :-D. Mastan, S. Sridhar, B. Naresh

This paper presents a feedback linearization Direct Torque Control (DTC) based on space vector modulation (SVM) which can be noticeably reduce electromagnetic torque and stator flux ripples that affect Induction Motor (IM) drive. In this paper IM drive that utilizes feedback linearization, Sliding-Mode Control (SMC) and a Fuzzy logic speed controller is discussed. A modern feedback linearization approach is proposed, which gives a decoupled direct IM model with two state variables: torque and stator flux magnitude. This obtained linear model is utilized to implement a DTC type controller that maintains all DTC advantages and suppresses its main drawback, the flux and torque ripple. Robust, quick, and ripple free control is accomplished by utilizing SMC with proportional component in the region surrounded by the sliding surface. SMC ensures robustness as in DTC, while the proportional component wipes out the torque and flux ripple. The torque time response is similar to traditional DTC and the proposed solution is able to adjust, profoundly tunable because of the P component. The sliding controller is compared with linear DTC scheme with and without feedback linearization. The conventional scheme uses proportional integral controller to achieve speed control. The fuzzy logic controller replaces the PI speed controller in the proposed scheme to ensure fast speed response in the drive. The extensive simulation results are presented and compared with the conventional scheme.

Authors and Affiliations

D. Mastan
M.Tech student, Electrical Engineering, JNTUA College of Engineering, Anantapuramu, Andhra Pradesh, India
S. Sridhar
Asst. Professor, Electrical Engineering, JNTUA College of Engineering, Anantapuramu, Andhra Pradesh, India
B. Naresh
Asst. Professor, UCEK, JNTU Kakiada , Andhra Pradesh, India

Direct torque control, adjustable speed drives, feedback linearization, induction motor drives, sliding mode control, fuzzy logic controller

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Publication Details

Published in : Volume 3 | Issue 8 | November-December 2017
Date of Publication : 2017-12-31
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 415-424
Manuscript Number : IJSRSET1738127
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

D. Mastan, S. Sridhar, B. Naresh, " Direct Torque Control with Sliding mode Feedback Linearization for SVM Inverter Fed Induction Motor Drives, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 8, pp.415-424, November-December-2017.
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