Performance analysis of asymmetrical less‐rare‐earth permanent magnet motor for electric vehicle
Abstract To reduce the manufacturing cost, the cogging torque and the torque ripple of the traditional V‐shaped permanent magnet motor (TPMM), an asymmetrical less‐rare‐earth permanent magnet motor (ALREPMM) is proposed. An equivalent air‐gap flux density model is established, the model is employed...
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| Format: | Article |
| Language: | English |
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Wiley
2022-03-01
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| Series: | IET Electrical Systems in Transportation |
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| Online Access: | https://doi.org/10.1049/els2.12036 |
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| author | Bingchang Lv Liwei Shi Lintao Li Kaiwen Liu Jianning Jing |
| author_facet | Bingchang Lv Liwei Shi Lintao Li Kaiwen Liu Jianning Jing |
| author_sort | Bingchang Lv |
| collection | DOAJ |
| description | Abstract To reduce the manufacturing cost, the cogging torque and the torque ripple of the traditional V‐shaped permanent magnet motor (TPMM), an asymmetrical less‐rare‐earth permanent magnet motor (ALREPMM) is proposed. An equivalent air‐gap flux density model is established, the model is employed to calculate the analytical expression of the no‐load back‐EMF, and the multiple objectives optimisation are carried out for the motor parameters based on the Taguchi algorithm. Electromagnetic performance of the TPMM structure and the ALREPMM structure is compared by finite element method‐based simulation. It is shown that the ALREPMM structure can reduce the amount of rare‐earth materials by 19%, and the cogging torque and the THD values of no‐load back‐EMF are reduced by 77.3% and 26.8%, respectively. Finally, a prototype is manufactured, thus verifying the rationality of the design of the ALREPMM structure through experiments. |
| format | Article |
| id | doaj-art-4ad39d7bf1c84a9398f30c8ef5b2606d |
| institution | Kabale University |
| issn | 2042-9738 2042-9746 |
| language | English |
| publishDate | 2022-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Electrical Systems in Transportation |
| spelling | doaj-art-4ad39d7bf1c84a9398f30c8ef5b2606d2025-02-03T06:47:34ZengWileyIET Electrical Systems in Transportation2042-97382042-97462022-03-01121364810.1049/els2.12036Performance analysis of asymmetrical less‐rare‐earth permanent magnet motor for electric vehicleBingchang Lv0Liwei Shi1Lintao Li2Kaiwen Liu3Jianning Jing4College of Transportation Shandong University of Technology ZiBo Shandong ChinaCollege of Transportation Shandong University of Technology ZiBo Shandong ChinaCollege of Transportation Shandong University of Technology ZiBo Shandong ChinaCollege of Transportation Shandong University of Technology ZiBo Shandong ChinaCollege of Transportation Shandong University of Technology ZiBo Shandong ChinaAbstract To reduce the manufacturing cost, the cogging torque and the torque ripple of the traditional V‐shaped permanent magnet motor (TPMM), an asymmetrical less‐rare‐earth permanent magnet motor (ALREPMM) is proposed. An equivalent air‐gap flux density model is established, the model is employed to calculate the analytical expression of the no‐load back‐EMF, and the multiple objectives optimisation are carried out for the motor parameters based on the Taguchi algorithm. Electromagnetic performance of the TPMM structure and the ALREPMM structure is compared by finite element method‐based simulation. It is shown that the ALREPMM structure can reduce the amount of rare‐earth materials by 19%, and the cogging torque and the THD values of no‐load back‐EMF are reduced by 77.3% and 26.8%, respectively. Finally, a prototype is manufactured, thus verifying the rationality of the design of the ALREPMM structure through experiments.https://doi.org/10.1049/els2.12036air‐gap flux densityasymmetryelectromagnetic performanceless‐rare‐earthno‐load back‐EMFpermanent magnet motor |
| spellingShingle | Bingchang Lv Liwei Shi Lintao Li Kaiwen Liu Jianning Jing Performance analysis of asymmetrical less‐rare‐earth permanent magnet motor for electric vehicle IET Electrical Systems in Transportation air‐gap flux density asymmetry electromagnetic performance less‐rare‐earth no‐load back‐EMF permanent magnet motor |
| title | Performance analysis of asymmetrical less‐rare‐earth permanent magnet motor for electric vehicle |
| title_full | Performance analysis of asymmetrical less‐rare‐earth permanent magnet motor for electric vehicle |
| title_fullStr | Performance analysis of asymmetrical less‐rare‐earth permanent magnet motor for electric vehicle |
| title_full_unstemmed | Performance analysis of asymmetrical less‐rare‐earth permanent magnet motor for electric vehicle |
| title_short | Performance analysis of asymmetrical less‐rare‐earth permanent magnet motor for electric vehicle |
| title_sort | performance analysis of asymmetrical less rare earth permanent magnet motor for electric vehicle |
| topic | air‐gap flux density asymmetry electromagnetic performance less‐rare‐earth no‐load back‐EMF permanent magnet motor |
| url | https://doi.org/10.1049/els2.12036 |
| work_keys_str_mv | AT bingchanglv performanceanalysisofasymmetricallessrareearthpermanentmagnetmotorforelectricvehicle AT liweishi performanceanalysisofasymmetricallessrareearthpermanentmagnetmotorforelectricvehicle AT lintaoli performanceanalysisofasymmetricallessrareearthpermanentmagnetmotorforelectricvehicle AT kaiwenliu performanceanalysisofasymmetricallessrareearthpermanentmagnetmotorforelectricvehicle AT jianningjing performanceanalysisofasymmetricallessrareearthpermanentmagnetmotorforelectricvehicle |