A consequent-pole magnetic-geared machine with axially embedded permanent magnets for hybrid electric vehicle
This paper reveals the fundamental reason for the asymmetrical issue in magnetic-geared machines (MGMs) based on flux modulation theory. The analysis indicates that the magnetic circuits of three-phase windings in MGMs are inherently asymmetrical. This asymmetrical issue is even more severe in conve...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/146151 |
| _version_ | 1824454004925530112 |
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| author | Xie, Shuangchun Chen, Hao Zuo, Yuefei Shen, Fawen Han, Boon Siew Hoang, Chi Cuong Lee, Christopher Ho Tin |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Xie, Shuangchun Chen, Hao Zuo, Yuefei Shen, Fawen Han, Boon Siew Hoang, Chi Cuong Lee, Christopher Ho Tin |
| author_sort | Xie, Shuangchun |
| collection | NTU |
| description | This paper reveals the fundamental reason for the asymmetrical issue in magnetic-geared machines (MGMs) based on flux modulation theory. The analysis indicates that the magnetic circuits of three-phase windings in MGMs are inherently asymmetrical. This asymmetrical issue is even more severe in conventional consequent-pole MGMs (CP-MGMs) because of the more distorted magnetic field. Hence, to address the asymmetrical issue, a novel structure featuring enhanced harmonic elimination capability is proposed in this paper. Consequently, torque density can also be improved. In particular, the proposed CP-MGM employs modular structure and axially embedded permanent magnets (PMs) to achieve symmetrical back electromotive force (EMF) waveforms and improved torque capability, respectively. To further improve the electromagnetic performance of the proposed CP-MGM, the PM arc ratio and flux modulator width ratio are analytically designed, which provides a general design guideline for CP-MGMs. To illustrate the merits of the proposed CP-MGM, a few other MGMs are included for a fair comparison based on finite element analysis (FEA). Results show the proposed CP-MGM can achieve more symmetrical back EMF waveforms and lower torque ripple, as well as lower PM consumption and higher torque density, as compared with its MGM counterparts. |
| first_indexed | 2025-02-19T03:15:25Z |
| format | Journal Article |
| id | ntu-10356/146151 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:15:25Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1461512021-01-28T04:57:47Z A consequent-pole magnetic-geared machine with axially embedded permanent magnets for hybrid electric vehicle Xie, Shuangchun Chen, Hao Zuo, Yuefei Shen, Fawen Han, Boon Siew Hoang, Chi Cuong Lee, Christopher Ho Tin School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Asymmetrical Magnetic Circuit Magnetic-geared Machine This paper reveals the fundamental reason for the asymmetrical issue in magnetic-geared machines (MGMs) based on flux modulation theory. The analysis indicates that the magnetic circuits of three-phase windings in MGMs are inherently asymmetrical. This asymmetrical issue is even more severe in conventional consequent-pole MGMs (CP-MGMs) because of the more distorted magnetic field. Hence, to address the asymmetrical issue, a novel structure featuring enhanced harmonic elimination capability is proposed in this paper. Consequently, torque density can also be improved. In particular, the proposed CP-MGM employs modular structure and axially embedded permanent magnets (PMs) to achieve symmetrical back electromotive force (EMF) waveforms and improved torque capability, respectively. To further improve the electromagnetic performance of the proposed CP-MGM, the PM arc ratio and flux modulator width ratio are analytically designed, which provides a general design guideline for CP-MGMs. To illustrate the merits of the proposed CP-MGM, a few other MGMs are included for a fair comparison based on finite element analysis (FEA). Results show the proposed CP-MGM can achieve more symmetrical back EMF waveforms and lower torque ripple, as well as lower PM consumption and higher torque density, as compared with its MGM counterparts. Published version Schaeffler Group Research Grant M4062765.040.601001 2021-01-28T04:53:23Z 2021-01-28T04:53:23Z 2021 Journal Article Xie, S., Chen, H., Zuo, Y., Shen, F., Han, B. S., Hoang, C. C., & Lee, C. H. T. (2021). A consequent-pole magnetic-geared machine with axially embedded permanent magnets for hybrid electric vehicle. IEEE Access, 9, 14905-14917. doi:10.1109/ACCESS.2021.3052914 2169-3536 https://hdl.handle.net/10356/146151 10.1109/ACCESS.2021.3052914 9 14905 14917 en Schaeffler Group Research Grant M4062765.040.601001 IEEE Access © 2021 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Asymmetrical Magnetic Circuit Magnetic-geared Machine Xie, Shuangchun Chen, Hao Zuo, Yuefei Shen, Fawen Han, Boon Siew Hoang, Chi Cuong Lee, Christopher Ho Tin A consequent-pole magnetic-geared machine with axially embedded permanent magnets for hybrid electric vehicle |
| title | A consequent-pole magnetic-geared machine with axially embedded permanent magnets for hybrid electric vehicle |
| title_full | A consequent-pole magnetic-geared machine with axially embedded permanent magnets for hybrid electric vehicle |
| title_fullStr | A consequent-pole magnetic-geared machine with axially embedded permanent magnets for hybrid electric vehicle |
| title_full_unstemmed | A consequent-pole magnetic-geared machine with axially embedded permanent magnets for hybrid electric vehicle |
| title_short | A consequent-pole magnetic-geared machine with axially embedded permanent magnets for hybrid electric vehicle |
| title_sort | consequent pole magnetic geared machine with axially embedded permanent magnets for hybrid electric vehicle |
| topic | Engineering::Electrical and electronic engineering Asymmetrical Magnetic Circuit Magnetic-geared Machine |
| url | https://hdl.handle.net/10356/146151 |
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