Investigation of the Magnetic Circuit and Performance of Less-Rare-Earth Interior Permanent-Magnet Synchronous Machines Used for Electric Vehicles
The less-rare-earth interior permanent-magnet synchronous machines (LRE-IPMSMs), which have the advantages of high power density, high efficiency, and low cost, are promising candidates for electric vehicles (EVs). In this paper, the equivalent magnetic circuit (EMC) of LRE-IPMSM is established and...
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| Format: | Article |
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MDPI AG
2017-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/10/12/2173 |
| _version_ | 1811187214191689728 |
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| author | Ping Zheng Weinan Wang Mingqiao Wang Yong Liu Zhenxing Fu |
| author_facet | Ping Zheng Weinan Wang Mingqiao Wang Yong Liu Zhenxing Fu |
| author_sort | Ping Zheng |
| collection | DOAJ |
| description | The less-rare-earth interior permanent-magnet synchronous machines (LRE-IPMSMs), which have the advantages of high power density, high efficiency, and low cost, are promising candidates for electric vehicles (EVs). In this paper, the equivalent magnetic circuit (EMC) of LRE-IPMSM is established and analyzed to investigate the machine design principles, and then the performance of an optimized machine is analyzed. Firstly, the equivalent magnetic circuits of the LRE-IPMSM are established by taking the saturation effect into consideration. Secondly, the effects of geometric parameters, such as the permanent-magnet (PM) width, the PM thickness, the flux barrier thickness, the flux barrier span angle, and the bridge width, on no-load flux, q-axis flux, and d-axis flux are investigated, respectively. The results calculated by the EMC method and finite-element analysis (FEA) are analyzed and compared, which proves the effectiveness of the EMC method. Finally, an optimized design of LRE-IPMSM obtained by the magnetic circuit analyses is proposed. The electromagnetic performances and mechanical strength of the optimized LRE-IPMSM are analyzed and verified, respectively. |
| first_indexed | 2024-04-11T13:59:36Z |
| format | Article |
| id | doaj.art-b54b7c0862c54fdbac574407ab602acd |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T13:59:36Z |
| publishDate | 2017-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-b54b7c0862c54fdbac574407ab602acd2022-12-22T04:20:10ZengMDPI AGEnergies1996-10732017-12-011012217310.3390/en10122173en10122173Investigation of the Magnetic Circuit and Performance of Less-Rare-Earth Interior Permanent-Magnet Synchronous Machines Used for Electric VehiclesPing Zheng0Weinan Wang1Mingqiao Wang2Yong Liu3Zhenxing Fu4Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, ChinaDepartment of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, ChinaDepartment of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, ChinaDepartment of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, ChinaDepartment of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, ChinaThe less-rare-earth interior permanent-magnet synchronous machines (LRE-IPMSMs), which have the advantages of high power density, high efficiency, and low cost, are promising candidates for electric vehicles (EVs). In this paper, the equivalent magnetic circuit (EMC) of LRE-IPMSM is established and analyzed to investigate the machine design principles, and then the performance of an optimized machine is analyzed. Firstly, the equivalent magnetic circuits of the LRE-IPMSM are established by taking the saturation effect into consideration. Secondly, the effects of geometric parameters, such as the permanent-magnet (PM) width, the PM thickness, the flux barrier thickness, the flux barrier span angle, and the bridge width, on no-load flux, q-axis flux, and d-axis flux are investigated, respectively. The results calculated by the EMC method and finite-element analysis (FEA) are analyzed and compared, which proves the effectiveness of the EMC method. Finally, an optimized design of LRE-IPMSM obtained by the magnetic circuit analyses is proposed. The electromagnetic performances and mechanical strength of the optimized LRE-IPMSM are analyzed and verified, respectively.https://www.mdpi.com/1996-1073/10/12/2173less rare earthinterior permanent-magnet synchronous machinesequivalent magnetic circuit (EMC)electromagnetic performancemechanical strength |
| spellingShingle | Ping Zheng Weinan Wang Mingqiao Wang Yong Liu Zhenxing Fu Investigation of the Magnetic Circuit and Performance of Less-Rare-Earth Interior Permanent-Magnet Synchronous Machines Used for Electric Vehicles Energies less rare earth interior permanent-magnet synchronous machines equivalent magnetic circuit (EMC) electromagnetic performance mechanical strength |
| title | Investigation of the Magnetic Circuit and Performance of Less-Rare-Earth Interior Permanent-Magnet Synchronous Machines Used for Electric Vehicles |
| title_full | Investigation of the Magnetic Circuit and Performance of Less-Rare-Earth Interior Permanent-Magnet Synchronous Machines Used for Electric Vehicles |
| title_fullStr | Investigation of the Magnetic Circuit and Performance of Less-Rare-Earth Interior Permanent-Magnet Synchronous Machines Used for Electric Vehicles |
| title_full_unstemmed | Investigation of the Magnetic Circuit and Performance of Less-Rare-Earth Interior Permanent-Magnet Synchronous Machines Used for Electric Vehicles |
| title_short | Investigation of the Magnetic Circuit and Performance of Less-Rare-Earth Interior Permanent-Magnet Synchronous Machines Used for Electric Vehicles |
| title_sort | investigation of the magnetic circuit and performance of less rare earth interior permanent magnet synchronous machines used for electric vehicles |
| topic | less rare earth interior permanent-magnet synchronous machines equivalent magnetic circuit (EMC) electromagnetic performance mechanical strength |
| url | https://www.mdpi.com/1996-1073/10/12/2173 |
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