Analysis of a Flux-Concentrated V-Type Biased-Flux Slot Motor
Biased flux motors are a configuration of electrical machine where the rotor is pure iron and magnets are buried in the stator yoke iron. In this paper, a biased-flux motor is proposed and validated in which the stator coreback permanent magnets are configured to a flux concentrating V-type arrangem...
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| Format: | Article |
| Language: | English |
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IEEE
2025-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10849530/ |
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| author | Mohammad Amirkhani Ehsan Farmahini Farahani Mohammad Afrank Mojtaba Mirsalim Nick J. Baker |
| author_facet | Mohammad Amirkhani Ehsan Farmahini Farahani Mohammad Afrank Mojtaba Mirsalim Nick J. Baker |
| author_sort | Mohammad Amirkhani |
| collection | DOAJ |
| description | Biased flux motors are a configuration of electrical machine where the rotor is pure iron and magnets are buried in the stator yoke iron. In this paper, a biased-flux motor is proposed and validated in which the stator coreback permanent magnets are configured to a flux concentrating V-type arrangement. By switching from the more usual circumferential magnets, it has been shown that torque production per unit magnet mass can increase by over 20% for a moderate 0.5% increase in torque ripple. This is by virtue of the significant increase in flux concentration in the air gap, which is proven mathematically, via simulation and validated experimentally. It is also shown that due to the new permanent magnet shape, demagnetization is limited. A comprehensive comparison is done to show the superiority of the proposed structure. Finally, validation of the theoretical and FEM analyses has been done experimentally by a prototyped 24/25 V-type motor. |
| format | Article |
| id | doaj-art-547900ded64143baa6e4f052f5143d0e |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-547900ded64143baa6e4f052f5143d0e2025-02-11T00:01:14ZengIEEEIEEE Access2169-35362025-01-0113232852329610.1109/ACCESS.2025.353282810849530Analysis of a Flux-Concentrated V-Type Biased-Flux Slot MotorMohammad Amirkhani0https://orcid.org/0000-0001-5142-1305Ehsan Farmahini Farahani1https://orcid.org/0000-0002-2251-354XMohammad Afrank2Mojtaba Mirsalim3https://orcid.org/0000-0003-0219-7081Nick J. Baker4https://orcid.org/0000-0001-6463-8888Department of Electrical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, IranSchool of Electrical and Electronic Engineering, Newcastle University, Newcastle upon Tyne, U.K.Department of Electrical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, IranDepartment of Electrical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, IranSchool of Electrical and Electronic Engineering, Newcastle University, Newcastle upon Tyne, U.K.Biased flux motors are a configuration of electrical machine where the rotor is pure iron and magnets are buried in the stator yoke iron. In this paper, a biased-flux motor is proposed and validated in which the stator coreback permanent magnets are configured to a flux concentrating V-type arrangement. By switching from the more usual circumferential magnets, it has been shown that torque production per unit magnet mass can increase by over 20% for a moderate 0.5% increase in torque ripple. This is by virtue of the significant increase in flux concentration in the air gap, which is proven mathematically, via simulation and validated experimentally. It is also shown that due to the new permanent magnet shape, demagnetization is limited. A comprehensive comparison is done to show the superiority of the proposed structure. Finally, validation of the theoretical and FEM analyses has been done experimentally by a prototyped 24/25 V-type motor.https://ieeexplore.ieee.org/document/10849530/High torque densitymulti-tooth structurepermanent magnetstator-PM |
| spellingShingle | Mohammad Amirkhani Ehsan Farmahini Farahani Mohammad Afrank Mojtaba Mirsalim Nick J. Baker Analysis of a Flux-Concentrated V-Type Biased-Flux Slot Motor IEEE Access High torque density multi-tooth structure permanent magnet stator-PM |
| title | Analysis of a Flux-Concentrated V-Type Biased-Flux Slot Motor |
| title_full | Analysis of a Flux-Concentrated V-Type Biased-Flux Slot Motor |
| title_fullStr | Analysis of a Flux-Concentrated V-Type Biased-Flux Slot Motor |
| title_full_unstemmed | Analysis of a Flux-Concentrated V-Type Biased-Flux Slot Motor |
| title_short | Analysis of a Flux-Concentrated V-Type Biased-Flux Slot Motor |
| title_sort | analysis of a flux concentrated v type biased flux slot motor |
| topic | High torque density multi-tooth structure permanent magnet stator-PM |
| url | https://ieeexplore.ieee.org/document/10849530/ |
| work_keys_str_mv | AT mohammadamirkhani analysisofafluxconcentratedvtypebiasedfluxslotmotor AT ehsanfarmahinifarahani analysisofafluxconcentratedvtypebiasedfluxslotmotor AT mohammadafrank analysisofafluxconcentratedvtypebiasedfluxslotmotor AT mojtabamirsalim analysisofafluxconcentratedvtypebiasedfluxslotmotor AT nickjbaker analysisofafluxconcentratedvtypebiasedfluxslotmotor |