A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines

This paper proposes a novel winding layout for the machines with fractional-slot concentrated windings (FSCW) using a stator shifting concept and non-overlapping windings, with which all the non-working harmonics will be completely cancelled or significantly reduced. First, the basic winding layout...

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Main Authors: Zhu, Shaohong, Cox, Tom, Xu, Zeyuan, Gerada, C.
Format: Conference or Workshop Item
Language:English
Published: 2018
Online Access:https://eprints.nottingham.ac.uk/53508/
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author Zhu, Shaohong
Cox, Tom
Xu, Zeyuan
Gerada, C.
author_facet Zhu, Shaohong
Cox, Tom
Xu, Zeyuan
Gerada, C.
author_sort Zhu, Shaohong
building Nottingham Research Data Repository
collection Online Access
description This paper proposes a novel winding layout for the machines with fractional-slot concentrated windings (FSCW) using a stator shifting concept and non-overlapping windings, with which all the non-working harmonics will be completely cancelled or significantly reduced. First, the basic winding layout with a 24slot 14pole machine to reduce the significant 1st sub-harmonic will be presented for machines with single layer (SL) windings. From this, a novel double layer (DL) winding layout using the stator shifting concept will be introduced. By adopting two SL winding sets with a 105deg mechanical angle shift with respect to each other, it is not necessary to use overlapping windings. With this configuration, the 1st sub-harmonic will be completely cancelled and the parasitic 5th harmonic will be significantly reduced. Hence, the rotor losses, specifically magnet loss will be significantly reduced. Finally, two PM machines with different DL winding layout, viz., conventional 12slot 14pole and 24slot 14pole machine, will be designed and compared to validate the advantages of this winding topology.
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format Conference or Workshop Item
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institution University of Nottingham Malaysia Campus
institution_category Local University
language English
last_indexed 2025-11-14T20:27:56Z
publishDate 2018
recordtype eprints
repository_type Digital Repository
spelling nottingham-535082019-03-13T11:51:50Z https://eprints.nottingham.ac.uk/53508/ A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines Zhu, Shaohong Cox, Tom Xu, Zeyuan Gerada, C. This paper proposes a novel winding layout for the machines with fractional-slot concentrated windings (FSCW) using a stator shifting concept and non-overlapping windings, with which all the non-working harmonics will be completely cancelled or significantly reduced. First, the basic winding layout with a 24slot 14pole machine to reduce the significant 1st sub-harmonic will be presented for machines with single layer (SL) windings. From this, a novel double layer (DL) winding layout using the stator shifting concept will be introduced. By adopting two SL winding sets with a 105deg mechanical angle shift with respect to each other, it is not necessary to use overlapping windings. With this configuration, the 1st sub-harmonic will be completely cancelled and the parasitic 5th harmonic will be significantly reduced. Hence, the rotor losses, specifically magnet loss will be significantly reduced. Finally, two PM machines with different DL winding layout, viz., conventional 12slot 14pole and 24slot 14pole machine, will be designed and compared to validate the advantages of this winding topology. 2018-04-19 Conference or Workshop Item PeerReviewed application/pdf en https://eprints.nottingham.ac.uk/53508/7/A%20novel%2024-slots14-poles%20fractional-slot%20concentrated%20winding%20topology%20with%20low%20space%20harmonics%20for%20electrical%20machines.pdf Zhu, Shaohong, Cox, Tom, Xu, Zeyuan and Gerada, C. (2018) A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines. In: PEMD 2018 - 9th International Conference on Power Electronics, Machines and Drives, 17-19 April 2018, Liverpool, UK. 10.3390/en11051026 10.3390/en11051026 10.3390/en11051026
spellingShingle Zhu, Shaohong
Cox, Tom
Xu, Zeyuan
Gerada, C.
A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines
title A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines
title_full A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines
title_fullStr A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines
title_full_unstemmed A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines
title_short A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines
title_sort novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines
url https://eprints.nottingham.ac.uk/53508/
https://eprints.nottingham.ac.uk/53508/