The Optimal Design and an Analysis of a Hybrid W-Shaped IPM Rotor of Coaxial Magnetic Gear
This paper presents a hybrid, W-shaped interior permanent magnet (HWIPM) rotor of a coaxial magnetic gear (MG). To reduce the usage of rare-earth PM material, it proposes a topology of inner rotor in a MG with two types of PM materials. The key point about this idea is that NdFeB PM is applied in co...
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IEEE
2024-01-01
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| Online Access: | https://ieeexplore.ieee.org/document/10547239/ |
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| author | Mohammad Amin Masoudi Seyed Ahmadreza Afsari |
| author_facet | Mohammad Amin Masoudi Seyed Ahmadreza Afsari |
| author_sort | Mohammad Amin Masoudi |
| collection | DOAJ |
| description | This paper presents a hybrid, W-shaped interior permanent magnet (HWIPM) rotor of a coaxial magnetic gear (MG). To reduce the usage of rare-earth PM material, it proposes a topology of inner rotor in a MG with two types of PM materials. The key point about this idea is that NdFeB PM is applied in combination with ferrite PM to form a hybrid PM excitation. This new type of HWIPM rotor is introduced, and the structure and principles of the operation are explained in details. The optimization and analysis results, using finite element method, showed that this structure could improve torque density and reduce cogging torque, while the cost of rare-earth PM consumption decreased, compared with conventional flat type interior PM-MG. A prototype was fabricated and the performances were experimentally verified. The experimental results showed that the proposed MG had superiorities of low cogging torque, low PM cost, and high torque density compared with conventional coaxial MGs. |
| format | Article |
| id | doaj-art-2a6f74a3cdc44c6eb5c00f8e0fd30cd7 |
| institution | DOAJ |
| issn | 2169-3536 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-2a6f74a3cdc44c6eb5c00f8e0fd30cd72025-08-20T02:40:07ZengIEEEIEEE Access2169-35362024-01-0112810678107410.1109/ACCESS.2024.340953110547239The Optimal Design and an Analysis of a Hybrid W-Shaped IPM Rotor of Coaxial Magnetic GearMohammad Amin Masoudi0https://orcid.org/0009-0005-5789-1435Seyed Ahmadreza Afsari1https://orcid.org/0000-0002-9197-7735Department of Electrical and Computer Engineering, University of Kashan, Kashan, IranDepartment of Electrical and Computer Engineering, University of Kashan, Kashan, IranThis paper presents a hybrid, W-shaped interior permanent magnet (HWIPM) rotor of a coaxial magnetic gear (MG). To reduce the usage of rare-earth PM material, it proposes a topology of inner rotor in a MG with two types of PM materials. The key point about this idea is that NdFeB PM is applied in combination with ferrite PM to form a hybrid PM excitation. This new type of HWIPM rotor is introduced, and the structure and principles of the operation are explained in details. The optimization and analysis results, using finite element method, showed that this structure could improve torque density and reduce cogging torque, while the cost of rare-earth PM consumption decreased, compared with conventional flat type interior PM-MG. A prototype was fabricated and the performances were experimentally verified. The experimental results showed that the proposed MG had superiorities of low cogging torque, low PM cost, and high torque density compared with conventional coaxial MGs.https://ieeexplore.ieee.org/document/10547239/Magnetic gearhybrid IPM rotorrare-earth PMtorque densitycogging torqueFEM |
| spellingShingle | Mohammad Amin Masoudi Seyed Ahmadreza Afsari The Optimal Design and an Analysis of a Hybrid W-Shaped IPM Rotor of Coaxial Magnetic Gear IEEE Access Magnetic gear hybrid IPM rotor rare-earth PM torque density cogging torque FEM |
| title | The Optimal Design and an Analysis of a Hybrid W-Shaped IPM Rotor of Coaxial Magnetic Gear |
| title_full | The Optimal Design and an Analysis of a Hybrid W-Shaped IPM Rotor of Coaxial Magnetic Gear |
| title_fullStr | The Optimal Design and an Analysis of a Hybrid W-Shaped IPM Rotor of Coaxial Magnetic Gear |
| title_full_unstemmed | The Optimal Design and an Analysis of a Hybrid W-Shaped IPM Rotor of Coaxial Magnetic Gear |
| title_short | The Optimal Design and an Analysis of a Hybrid W-Shaped IPM Rotor of Coaxial Magnetic Gear |
| title_sort | optimal design and an analysis of a hybrid w shaped ipm rotor of coaxial magnetic gear |
| topic | Magnetic gear hybrid IPM rotor rare-earth PM torque density cogging torque FEM |
| url | https://ieeexplore.ieee.org/document/10547239/ |
| work_keys_str_mv | AT mohammadaminmasoudi theoptimaldesignandananalysisofahybridwshapedipmrotorofcoaxialmagneticgear AT seyedahmadrezaafsari theoptimaldesignandananalysisofahybridwshapedipmrotorofcoaxialmagneticgear AT mohammadaminmasoudi optimaldesignandananalysisofahybridwshapedipmrotorofcoaxialmagneticgear AT seyedahmadrezaafsari optimaldesignandananalysisofahybridwshapedipmrotorofcoaxialmagneticgear |