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Challenges and Future opportunities of Hairpin Technologies

Arzillo, A.; Braglia, P.; Nuzzo, S.; Barater, D.; Franceschini, G.; Gerada, D.; Gerada, C.

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Authors

A. Arzillo

P. Braglia

S. Nuzzo

D. Barater

G. Franceschini

DAVID GERADA D.Gerada@nottingham.ac.uk
Professor of Electrical Engineering



Abstract

Hairpin windings are seeing an ever-increasing application and development in electrical machines designed for high power and torque densities. In fact, due to their inherently high fill factor, they are very attractive in applications, such as transportation, where these characteristics are considered main design objectives. On the other hand, high operating frequencies also contribute to improve power density of electrical machines. However, at high fundamental frequencies, hairpin windings are characterised by increased Joule losses due to skin and proximity effects. Hence, while these technologies are introducing new opportunities, a number of challenges still need to be addressed. These include manufacturing aspects, contacting processes, thermal management, etc. This paper presents an overview of the current state-of-the-art of hairpin technologies and propose possible future opportunities. The authors' perspective is then finally provided, showing how innovative winding patterns can potentially overcome the above mentioned challenges.

Citation

Arzillo, A., Braglia, P., Nuzzo, S., Barater, D., Franceschini, G., Gerada, D., & Gerada, C. (2020, June). Challenges and Future opportunities of Hairpin Technologies. Presented at 2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), Delft, Netherlands

Presentation Conference Type Edited Proceedings
Conference Name 2020 IEEE 29th International Symposium on Industrial Electronics (ISIE)
Start Date Jun 17, 2020
End Date Jun 19, 2020
Acceptance Date Apr 15, 2020
Online Publication Date Jul 30, 2020
Publication Date 2020-06
Deposit Date Nov 2, 2020
Publicly Available Date Nov 20, 2020
Publisher Institute of Electrical and Electronics Engineers
Pages 277-282
ISBN 9781728156354
DOI https://doi.org/10.1109/ISIE45063.2020.9152417
Public URL https://nottingham-repository.worktribe.com/output/5013480
Publisher URL https://ieeexplore-ieee-org.ezproxy.nottingham.ac.uk/abstract/document/9152417
Additional Information © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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