Abstract
Bearingless motors have zero mechanical loss and no-contact operation, making them a compelling technology for high speed, high reliability applications, such as industrial compressors. However, currently published demonstrations of bearingless motors have been limited to low power levels (≤ 30 kW). This paper investigates the use of a “no voltage" combined motor winding to overcome performance challenges and enable the development of a medium power, high speed bearingless permanent magnet synchronous motor (BPMSM). An optimization framework is developed and used to explore the design space for several designs with different slot and pole numbers. It is shown that candidate designs achieve > 95% efficiency while requiring < 5% of the slot space for suspension current.
Original language | English (US) |
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Title of host publication | IET Conference Proceedings |
Publisher | Institution of Engineering and Technology |
Pages | 803-808 |
Number of pages | 6 |
Volume | 2020 |
Edition | 7 |
ISBN (Electronic) | 9781839533303, 9781839534195, 9781839535062, 9781839535222, 9781839535239, 9781839535246, 9781839535406, 9781839535420, 9781839535635 |
DOIs | |
State | Published - 2020 |
Externally published | Yes |
Event | 10th International Conference on Power Electronics, Machines and Drives, PEMD 2020 - Virtual, Online Duration: Dec 15 2020 → Dec 17 2020 |
Conference
Conference | 10th International Conference on Power Electronics, Machines and Drives, PEMD 2020 |
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City | Virtual, Online |
Period | 12/15/20 → 12/17/20 |
Bibliographical note
Publisher Copyright:© 2020 IET Conference Proceedings. All rights reserved.
Keywords
- bearingless motor
- combined winding
- high speed motor
- optimization
- self-bearing motor