Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine
This paper investigates the theoretical reasons behind the low torque ripple of a fractional-slot concentrated-winding (FSCW) spoke-type interior permanent-magnet (IPM) machine obtained via a genetic algorithm-based optimization. To better understand the torque performance of the IPMM, this paper us...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/11/2886 |
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| author | Guoyu Chu Rukmi Dutta Alireza Pouramin Muhammed Fazlur Rahman |
| author_facet | Guoyu Chu Rukmi Dutta Alireza Pouramin Muhammed Fazlur Rahman |
| author_sort | Guoyu Chu |
| collection | DOAJ |
| description | This paper investigates the theoretical reasons behind the low torque ripple of a fractional-slot concentrated-winding (FSCW) spoke-type interior permanent-magnet (IPM) machine obtained via a genetic algorithm-based optimization. To better understand the torque performance of the IPMM, this paper uses the frozen permeability method to segregate the overall torque into four components—magnet torque, reluctance torque, cogging torque, and the torque caused by cross-magnetization. Equations and detailed procedures of the torque separation method are discussed in the paper. Analysis of the separated torque components reveals that the counteraction between ripples of different torques leads to the low torque ripple. At high-load conditions, the magnetic saturation alters the torque ripples caused by cross-magnetization to offset ripples of other components resulting in minimization of the overall torque ripple. A detailed parametric analysis of the geometric parameters was carried out to understand their effect in producing minimum torque ripple in the optimized design. In the end, a prototype was built and used for the verification of the torque separation method and the analytical findings based on it. |
| first_indexed | 2024-03-10T19:21:46Z |
| format | Article |
| id | doaj.art-637b3f813f854b3c8466627623801d96 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T19:21:46Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-637b3f813f854b3c8466627623801d962023-11-20T02:55:04ZengMDPI AGEnergies1996-10732020-06-011311288610.3390/en13112886Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet MachineGuoyu Chu0Rukmi Dutta1Alireza Pouramin2Muhammed Fazlur Rahman3School of Electrical Engineering and Telecommunications, UNSW Sydney, Kensington, NSW 2033, AustraliaSchool of Electrical Engineering and Telecommunications, UNSW Sydney, Kensington, NSW 2033, AustraliaSchool of Electrical Engineering and Telecommunications, UNSW Sydney, Kensington, NSW 2033, AustraliaSchool of Electrical Engineering and Telecommunications, UNSW Sydney, Kensington, NSW 2033, AustraliaThis paper investigates the theoretical reasons behind the low torque ripple of a fractional-slot concentrated-winding (FSCW) spoke-type interior permanent-magnet (IPM) machine obtained via a genetic algorithm-based optimization. To better understand the torque performance of the IPMM, this paper uses the frozen permeability method to segregate the overall torque into four components—magnet torque, reluctance torque, cogging torque, and the torque caused by cross-magnetization. Equations and detailed procedures of the torque separation method are discussed in the paper. Analysis of the separated torque components reveals that the counteraction between ripples of different torques leads to the low torque ripple. At high-load conditions, the magnetic saturation alters the torque ripples caused by cross-magnetization to offset ripples of other components resulting in minimization of the overall torque ripple. A detailed parametric analysis of the geometric parameters was carried out to understand their effect in producing minimum torque ripple in the optimized design. In the end, a prototype was built and used for the verification of the torque separation method and the analytical findings based on it.https://www.mdpi.com/1996-1073/13/11/2886FSCWfrozen permeabilityfinite elementIPMSMspoke-typetorque separation |
| spellingShingle | Guoyu Chu Rukmi Dutta Alireza Pouramin Muhammed Fazlur Rahman Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine Energies FSCW frozen permeability finite element IPMSM spoke-type torque separation |
| title | Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine |
| title_full | Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine |
| title_fullStr | Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine |
| title_full_unstemmed | Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine |
| title_short | Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine |
| title_sort | analysis of torque ripple of a spoke type interior permanent magnet machine |
| topic | FSCW frozen permeability finite element IPMSM spoke-type torque separation |
| url | https://www.mdpi.com/1996-1073/13/11/2886 |
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