A Wide Air Gap Flux Switching Bearingless Motor With Odd and Even Pole Pair Numbers
This paper introduces a bearingless motor topology with a magnet-free rotor that provides a higher rotor torque density and wider magnetic air gap compared to previously published topologies. The stray flux is minimized by using a stator with only eight teeth in temple configuration that contain per...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Open Journal of Industry Applications |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9134868/ |
| _version_ | 1818617952269762560 |
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| author | Thomas Holenstein Marcel Schuck Johann W. Kolar |
| author_facet | Thomas Holenstein Marcel Schuck Johann W. Kolar |
| author_sort | Thomas Holenstein |
| collection | DOAJ |
| description | This paper introduces a bearingless motor topology with a magnet-free rotor that provides a higher rotor torque density and wider magnetic air gap compared to previously published topologies. The stray flux is minimized by using a stator with only eight teeth in temple configuration that contain permanent magnets. The motor performance is analyzed based on experimental prototypes, that were designed using 3D FEM simulations, for even and odd rotor pole pair numbers of six and nine, respectively. Control schemes that compensate parasitic radial forces to achieve stable magnetic levitation of the rotors are presented. The implemented prototypes reached a rotational speed of 2000 rpm and a maximum torque of 8 Nm. |
| first_indexed | 2024-12-16T17:13:52Z |
| format | Article |
| id | doaj.art-0bea212265de4edc84d2da1c6ab2ed3a |
| institution | Directory Open Access Journal |
| issn | 2644-1241 |
| language | English |
| last_indexed | 2024-12-16T17:13:52Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Industry Applications |
| spelling | doaj.art-0bea212265de4edc84d2da1c6ab2ed3a2022-12-21T22:23:20ZengIEEEIEEE Open Journal of Industry Applications2644-12412020-01-011526210.1109/OJIA.2020.30077819134868A Wide Air Gap Flux Switching Bearingless Motor With Odd and Even Pole Pair NumbersThomas Holenstein0https://orcid.org/0000-0003-0261-3292Marcel Schuck1https://orcid.org/0000-0001-7550-4869Johann W. Kolar2https://orcid.org/0000-0002-6000-7402Levitronix GmbH, Zurich, SwitzerlandPower Electronic Systems Laboratory, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, SwitzerlandPower Electronic Systems Laboratory, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, SwitzerlandThis paper introduces a bearingless motor topology with a magnet-free rotor that provides a higher rotor torque density and wider magnetic air gap compared to previously published topologies. The stray flux is minimized by using a stator with only eight teeth in temple configuration that contain permanent magnets. The motor performance is analyzed based on experimental prototypes, that were designed using 3D FEM simulations, for even and odd rotor pole pair numbers of six and nine, respectively. Control schemes that compensate parasitic radial forces to achieve stable magnetic levitation of the rotors are presented. The implemented prototypes reached a rotational speed of 2000 rpm and a maximum torque of 8 Nm.https://ieeexplore.ieee.org/document/9134868/Flux switchinghigh torquemagnetic levitationreluctance rotortemple motorwide air gap machine |
| spellingShingle | Thomas Holenstein Marcel Schuck Johann W. Kolar A Wide Air Gap Flux Switching Bearingless Motor With Odd and Even Pole Pair Numbers IEEE Open Journal of Industry Applications Flux switching high torque magnetic levitation reluctance rotor temple motor wide air gap machine |
| title | A Wide Air Gap Flux Switching Bearingless Motor With Odd and Even Pole Pair Numbers |
| title_full | A Wide Air Gap Flux Switching Bearingless Motor With Odd and Even Pole Pair Numbers |
| title_fullStr | A Wide Air Gap Flux Switching Bearingless Motor With Odd and Even Pole Pair Numbers |
| title_full_unstemmed | A Wide Air Gap Flux Switching Bearingless Motor With Odd and Even Pole Pair Numbers |
| title_short | A Wide Air Gap Flux Switching Bearingless Motor With Odd and Even Pole Pair Numbers |
| title_sort | wide air gap flux switching bearingless motor with odd and even pole pair numbers |
| topic | Flux switching high torque magnetic levitation reluctance rotor temple motor wide air gap machine |
| url | https://ieeexplore.ieee.org/document/9134868/ |
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