Abstract
Concentrated wound, open slot, permanent magnet electrical machines are an attractive topology for automotive and aerospace applications as they exhibit compact end-windings, resulting in high power-density, facilitate fault tolerant operation through, physical, thermal, magnetic and electrical isolation of phase windings, and the open slot structure eases manufacture. However, a significant disadvantage of this topology is the interaction between the armature reaction field and winding conductors leading to elevated AC losses. A common mitigation technique is to reduce the height of the winding in the slot to minimise this interaction, however, the conductor crosssectional area is consequently reduced which compromises lowspeed performance. This paper investigates the use of additive manufacturing to produce shaped profile windings which exhibit minimal AC loss whilst maximising the utilisation of the slot area, thereby improving low-speed performance while maintaining high-speed performance.
Original language | English |
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Pages (from-to) | 2510 - 2519 |
Number of pages | 8 |
Journal | IEEE Transactions on Industry Applications |
Volume | 56 |
Issue number | 3 |
Early online date | 21 Feb 2020 |
DOIs | |
Publication status | E-pub ahead of print - 21 Feb 2020 |
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Dr Nick Simpson
- School of Electrical, Electronic and Mechanical Engineering - Associate Professor of Advanced Electrical Machine Design
- Electrical Energy Management
Person: Academic , Member