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- Title
Development of Novel Semi-Stranded Windings for High Speed Electrical Machines Enabled by Additive Manufacturing.
- Authors
Selema, Ahmed; Ibrahim, Mohamed N.; Sergeant, Peter
- Abstract
Recent advances in electrical machines and energy storage technologies make electric vehicles (EVs) feasible replacements to conventional internal combustion engines. One of the main challenges of high speed electrical machines is providing maximum output power with minimum energy losses, weight, and volume. At high frequency operation, the conductors of AC electrical machines can suffer from skin and proximity effects. This results in high AC losses in the machine windings and can eventually lead to machine failure. In this paper, a novel design for a semi-stranded coil is proposed to limit these undesirable effects. Enabled by additive manufacturing (AM) technology, this sophisticated design is 3D printed using ultralight aluminum alloy. Finally, the AC performance of this coil is measured and compared with conventional single-strand copper coil at different frequency levels. It is found that the proposed design can effectively limit the eddy current losses in the high frequency domain.
- Subjects
WIND speed; EDDY current losses; ELECTRIC machinery; INTERNAL combustion engines; ENERGY dissipation; ELECTRICAL energy; COPPER
- Publication
Applied Sciences (2076-3417), 2023, Vol 13, Issue 3, p1653
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app13031653