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Performance Improvement in Six-Phase Symmetrical Induction Motor by using Synthetic Voltage Vector based Direct Torque Control

Sharma, S, Aware, M, Bhowate, A and Levi, E (2019) Performance Improvement in Six-Phase Symmetrical Induction Motor by using Synthetic Voltage Vector based Direct Torque Control. IET Electric Power Applications. ISSN 1751-8679

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Abstract

In this paper, direct torque control (DTC) scheme for a symmetrical six-phase induction motor by incorporating five-level torque comparator is presented. The five-level torque comparator in DTC provides the benefit of torque ripple reduction, compared to a three-level torque comparator. Adoption of five-level torque comparator generates the flux in xy-subspace which leads to flow of increased stator current. The xy-subspace flux is also not responsible for torque production. The synthetic voltage vectors are therefore developed to minimize the xy-subspace flux and thus improve performance of the symmetrical six-phase induction motor. The comparative analysis of the developed switching schemes is presented. The common mode voltage (CMV) of the drive is also taken care of by the proposed switching scheme. Experimental results are provided to verify the proposed scheme.

Item Type: Article
Additional Information: This paper is a postprint of a paper submitted to and accepted for publication in IET Electric Power Applications and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at the IET Digital Library.
Uncontrolled Keywords: 0906 Electrical and Electronic Engineering
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions: Electronics and Electrical Engineering
Publisher: Institution of Engineering and Technology
Date Deposited: 26 Apr 2019 08:23
Last Modified: 28 Apr 2019 00:41
DOI or Identification number: 10.1049/iet-epa.2018.5983
URI: http://researchonline.ljmu.ac.uk/id/eprint/10597

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