@inproceedings{755522b0196e4d8a88c3c92f14440cdd,
title = "Comparison of Aluminium and Copper Conductors in Hairpin Winding Design for High Power Density Traction Motors",
abstract = "Hairpin windings are becoming current/next generation solutions for traction motors of electric vehicles due to inherently reduced DC power losses and improved heat dissipation capability compared with random windings. Copper-based conductor has been widely accepted as default option for hairpin windings. Meanwhile, aluminum remains a popular conductor material based on its light-weight characteristic and flexibility in manufacturing. In this paper, both copper and aluminum conductors will be evaluated based on specific hairpin winding layout applied in design of a 150kW, 18000rpm traction motor. Influences of conductor sizes on machine performance and power losses will be investigated for these two winding materials by 2D FEA of parametrized machine topology. It is interesting to find that by bringing this {"}old-fashioned{"}comparison back to stage, aluminum conductor might be promising candidate for hairpin windings due to reduced AC losses, easier preforming and welding process and much reduced raw material costs.",
keywords = "AC loss, aluminum windings, copper windings, Electric vehicle, hairpin winding, high speed machine, power density, traction motor",
author = "G. Petrelli and M. Cui and T. Zou and G. Sala and {La Rocca}, A. and D. Barater and G. Franceschini and D. Gerada and M. Degano and C. Gerada",
note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 International Conference on Electrical Machines, ICEM 2022 ; Conference date: 05-09-2022 Through 08-09-2022",
year = "2022",
doi = "10.1109/ICEM51905.2022.9910796",
language = "English",
series = "2022 International Conference on Electrical Machines, ICEM 2022",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1635--1641",
booktitle = "2022 International Conference on Electrical Machines, ICEM 2022",
address = "United States",
}
