Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/146151
Title: A consequent-pole magnetic-geared machine with axially embedded permanent magnets for hybrid electric vehicle
Authors: Xie, Shuangchun
Chen, Hao
Zuo, Yuefei
Shen, Fawen
Han, Boon Siew
Hoang, Chi Cuong
Lee, Christopher Ho Tin
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2021
Source: 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
Project: Schaeffler Group Research Grant M4062765.040.601001
Journal: IEEE Access
Abstract: 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.
URI: https://hdl.handle.net/10356/146151
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2021.3052914
Rights: © 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/.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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