Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines
A computationally efficient design of interior permanent magnet (IPM) motor rotor features is investigated utilizing analytical methods. Over the broad operating range of IPM machines, interactions of MMF sources, permeances, and currents result in torque harmonics. The placement of traditional roto...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/14/16/5109 |
| _version_ | 1827685262116782080 |
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| author | Steven Hayslett Elias Strangas |
| author_facet | Steven Hayslett Elias Strangas |
| author_sort | Steven Hayslett |
| collection | DOAJ |
| description | A computationally efficient design of interior permanent magnet (IPM) motor rotor features is investigated utilizing analytical methods. Over the broad operating range of IPM machines, interactions of MMF sources, permeances, and currents result in torque harmonics. The placement of traditional rotor features along with sculpt features are utilized to minimize torque ripple and maximize average torque. We extend the winding function theory to include the IPM rotor’s primary and secondary reluctance paths and the non-homogeneous airgap of the rotor sculpt features. A new analytical winding function model of the single-V IPM machine is introduced, which considers the sculpted rotor and how this model can be used in the design approach of machines. Results are validated with finite elements. Rotor feature trends are established and utilized to increase design intuition and reduce dependency upon the lengthy design of experiment optimization processes. |
| first_indexed | 2024-03-10T08:50:19Z |
| format | Article |
| id | doaj.art-0a3cbcac565a45aa9b53655dee39b99f |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T08:50:19Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-0a3cbcac565a45aa9b53655dee39b99f2023-11-22T07:32:06ZengMDPI AGEnergies1996-10732021-08-011416510910.3390/en14165109Analytical Design of Sculpted Rotor Interior Permanent Magnet MachinesSteven Hayslett0Elias Strangas1Department of Mechanical Engineering, Michigan State University, East Lansing, MI 48824, USADepartment of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USAA computationally efficient design of interior permanent magnet (IPM) motor rotor features is investigated utilizing analytical methods. Over the broad operating range of IPM machines, interactions of MMF sources, permeances, and currents result in torque harmonics. The placement of traditional rotor features along with sculpt features are utilized to minimize torque ripple and maximize average torque. We extend the winding function theory to include the IPM rotor’s primary and secondary reluctance paths and the non-homogeneous airgap of the rotor sculpt features. A new analytical winding function model of the single-V IPM machine is introduced, which considers the sculpted rotor and how this model can be used in the design approach of machines. Results are validated with finite elements. Rotor feature trends are established and utilized to increase design intuition and reduce dependency upon the lengthy design of experiment optimization processes.https://www.mdpi.com/1996-1073/14/16/5109electric motorinterior permanent magnetreluctanceMMF-permeancewinding functiontorque ripple |
| spellingShingle | Steven Hayslett Elias Strangas Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines Energies electric motor interior permanent magnet reluctance MMF-permeance winding function torque ripple |
| title | Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines |
| title_full | Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines |
| title_fullStr | Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines |
| title_full_unstemmed | Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines |
| title_short | Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines |
| title_sort | analytical design of sculpted rotor interior permanent magnet machines |
| topic | electric motor interior permanent magnet reluctance MMF-permeance winding function torque ripple |
| url | https://www.mdpi.com/1996-1073/14/16/5109 |
| work_keys_str_mv | AT stevenhayslett analyticaldesignofsculptedrotorinteriorpermanentmagnetmachines AT eliasstrangas analyticaldesignofsculptedrotorinteriorpermanentmagnetmachines |