Shaohong Zhu
A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines
Zhu, Shaohong; Cox, Tom; Xu, Zeyuan; Gerada, Chris
Authors
Dr Tom Cox T.Cox@nottingham.ac.uk
ASSOCIATE PROFESSOR
Dr ZEYUAN XU ZEYUAN.XU@NOTTINGHAM.AC.UK
PRINCIPAL RESEARCH FELLOW
Professor CHRISTOPHER GERADA CHRIS.GERADA@NOTTINGHAM.AC.UK
PROFESSOR OF ELECTRICAL MACHINES
Abstract
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.
Citation
Zhu, S., Cox, T., Xu, Z., & Gerada, C. (2018, April). A novel 24-slots14-poles fractional-slot concentrated winding topology with low space harmonics for electrical machines. Presented at PEMD 2018 - 9th International Conference on Power Electronics, Machines and Drives
| Presentation Conference Type | Conference Paper (published) |
|---|---|
| Conference Name | PEMD 2018 - 9th International Conference on Power Electronics, Machines and Drives |
| Start Date | Apr 17, 2018 |
| End Date | Apr 19, 2018 |
| Acceptance Date | Feb 14, 2018 |
| Publication Date | Apr 17, 2018 |
| Deposit Date | Aug 2, 2018 |
| Publicly Available Date | Aug 6, 2018 |
| Book Title | NA |
| Chapter Number | NA |
| ISBN | NA |
| Public URL | https://nottingham-repository.worktribe.com/output/869479 |
| Contract Date | Aug 2, 2018 |
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A Novel 24-slots14-poles Fractional-slot Concentrated Winding Topology With Low Space Harmonics For Electrical Machines
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