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New Optimized Fractional Slot Concentrated Winding Design for Torque Ripple Minimization in Permanent Magnet MachineBANCHHOR, D. K. , DHABALE, A. |
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Author keywords
finite element analysis, harmonic analysis, optimization, permanent magnet motors, torque
References keywords
slot(21), fractional(18), windings(15), machines(13), ntrated(12), permanent(11), magnet(11), applications(10), winding(8), magnetics(8)
Blue keywords are present in both the references section and the paper title.
About this article
Date of Publication: 2021-11-30
Volume 21, Issue 4, Year 2021, On page(s): 127 - 134
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2021.04014
Web of Science Accession Number: 000725107100014
SCOPUS ID: 85122229140
Abstract
This paper presents a new optimized fractional slot concentrated winding (FSCW) design for torque ripple minimization in permanent magnet motors through space harmonic reduction. The proposed design offers the minimum total harmonics distortion in the magnetomotive force (MMF) produced by the winding whereas winding factor of the working harmonic component is set to the maximum value. A detailed mathematical derivation of the winding function is presented for general symmetrical FSCW using Fourier series expansion. The optimization methodology presented for the new optimized FSCW design results in optimal number of conductors at optimal slot positions while keeping slot pitch equal in the core design. The harmonic analysis of various examples of FSCW is presented which shows a significant reduction in the non-working harmonics in the proposed optimized design. A 24-slot 22-pole permanent magnet synchronous motor is designed and analyzed using the two-dimensional finite element method. The magnetic analysis of motors shows that the non-working harmonics in the air-gap flux distribution are minimized in the case of proposed design as obtained from the analysis of winding functions. The dynamic analysis shows a substantial improvement in the performance of proposed FSCW machine over the conventional machine. |
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[1] Dual Stator Electric Machine Equipped with Permanent Magnets on Both Stators, Chukwuemeka C. Awah,, Russian Electrical Engineering, ISSN 1068-3712, Issue 8, Volume 95, 2024.
Digital Object Identifier: 10.3103/S1068371224700846 [CrossRef]
[2] Six-phase Fractional Slot Concentrated Winding Permanent Magnet Synchronous Motor with Reduced Torque Ripple, Munteanu, Adrian, 2022 International Conference and Exposition on Electrical And Power Engineering (EPE), ISBN 978-1-6654-8994-2, 2022.
Digital Object Identifier: 10.1109/EPE56121.2022.9959854 [CrossRef]
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
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