Effect of Flux Barriers on Short-Circuit Current and Braking Torque in Dual Three-Phase PM Machine
This paper investigates the influence of stator flux barriers on the short-circuit current (SCC) and braking torque of a dual three-phase permanent magnet (PM) synchronous machine. By optimizing the position and width of stator flux barriers, the machine has a lower amplitude of short-circuit curren...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Machines |
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| Online Access: | https://www.mdpi.com/2075-1702/10/8/611 |
| _version_ | 1827617764991303680 |
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| author | Lin Liu Kai Wang Lingling Guo Jian Li |
| author_facet | Lin Liu Kai Wang Lingling Guo Jian Li |
| author_sort | Lin Liu |
| collection | DOAJ |
| description | This paper investigates the influence of stator flux barriers on the short-circuit current (SCC) and braking torque of a dual three-phase permanent magnet (PM) synchronous machine. By optimizing the position and width of stator flux barriers, the machine has a lower amplitude of short-circuit current and brake torque when the short-circuit fault occurs. First, the SCC and braking torque are analytically derived. The amplitude of SCC is proportional to the PM flux linkage and inversely proportional to the inductance. The braking torque is proportional to the square of the PM flux linkage and inversely proportional to inductance. Then, the equivalent magnetic circuit model of flux barriers is established. Its influence on flux linkage and inductance is analyzed, and the improvement mechanism of output torque and fault tolerance is revealed. Furthermore, the flux barriers’ width is optimized by finite element analysis and the theoretical analysis is verified. Finally, experiments on the prototype machine are carried out for the validation. |
| first_indexed | 2024-03-09T09:53:35Z |
| format | Article |
| id | doaj.art-20f64eb4ff724cfd9fbec0bb8b48e6d2 |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-03-09T09:53:35Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj.art-20f64eb4ff724cfd9fbec0bb8b48e6d22023-12-01T23:55:21ZengMDPI AGMachines2075-17022022-07-0110861110.3390/machines10080611Effect of Flux Barriers on Short-Circuit Current and Braking Torque in Dual Three-Phase PM MachineLin Liu0Kai Wang1Lingling Guo2Jian Li3College of Automation, Nanjing University of Aeronautics and Astronautics, 29 Jiang Jun Road, Nanjing 211106, ChinaCollege of Automation, Nanjing University of Aeronautics and Astronautics, 29 Jiang Jun Road, Nanjing 211106, ChinaCollege of Automation, Nanjing University of Aeronautics and Astronautics, 29 Jiang Jun Road, Nanjing 211106, ChinaCollege of Automation, Nanjing University of Aeronautics and Astronautics, 29 Jiang Jun Road, Nanjing 211106, ChinaThis paper investigates the influence of stator flux barriers on the short-circuit current (SCC) and braking torque of a dual three-phase permanent magnet (PM) synchronous machine. By optimizing the position and width of stator flux barriers, the machine has a lower amplitude of short-circuit current and brake torque when the short-circuit fault occurs. First, the SCC and braking torque are analytically derived. The amplitude of SCC is proportional to the PM flux linkage and inversely proportional to the inductance. The braking torque is proportional to the square of the PM flux linkage and inversely proportional to inductance. Then, the equivalent magnetic circuit model of flux barriers is established. Its influence on flux linkage and inductance is analyzed, and the improvement mechanism of output torque and fault tolerance is revealed. Furthermore, the flux barriers’ width is optimized by finite element analysis and the theoretical analysis is verified. Finally, experiments on the prototype machine are carried out for the validation.https://www.mdpi.com/2075-1702/10/8/611permanent magnet machinedual three-phase windingstator flux barriersshort circuit currentbraking torque |
| spellingShingle | Lin Liu Kai Wang Lingling Guo Jian Li Effect of Flux Barriers on Short-Circuit Current and Braking Torque in Dual Three-Phase PM Machine Machines permanent magnet machine dual three-phase winding stator flux barriers short circuit current braking torque |
| title | Effect of Flux Barriers on Short-Circuit Current and Braking Torque in Dual Three-Phase PM Machine |
| title_full | Effect of Flux Barriers on Short-Circuit Current and Braking Torque in Dual Three-Phase PM Machine |
| title_fullStr | Effect of Flux Barriers on Short-Circuit Current and Braking Torque in Dual Three-Phase PM Machine |
| title_full_unstemmed | Effect of Flux Barriers on Short-Circuit Current and Braking Torque in Dual Three-Phase PM Machine |
| title_short | Effect of Flux Barriers on Short-Circuit Current and Braking Torque in Dual Three-Phase PM Machine |
| title_sort | effect of flux barriers on short circuit current and braking torque in dual three phase pm machine |
| topic | permanent magnet machine dual three-phase winding stator flux barriers short circuit current braking torque |
| url | https://www.mdpi.com/2075-1702/10/8/611 |
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