Comparative study of torque-speed characteristics of alternate switched-flux permanent magnet machine topologies

Zi Qiang Zhu, M. M J Al-Ani, X. Liu, M. Hasegawa, A. Pride, R. Deodhar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

This paper presents a comparative study of electromagnetic performance in switched flux permanent magnet (SFPM) machines with different topologies, i.e. conventional SFPM machines, multi-tooth, E-core and C-core SFPM machines. With the aid of 2D finite element analysis (FEA), the torque waveform, cogging torque, back-emf and d- and q- axis inductances are investigated and compared with emphasis on the torque-speed characteristics. In conventional SFPM machines, the influence of stator/rotor pole combination on the torque-speed characteristics is also investigated through 12/10, 12/13 and 12/14 SFPM machines. Compared with conventional SFPM machines, which exhibit limited speed range, infinite speed range is observed in multi-tooth, E-core and C-core SFPM machines, among which the highest average torque per ampere is achieved in E-core SFPM machine, albeit with relatively high torque ripples.

Original languageEnglish
Title of host publication6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012
PublisherInstitution of Engineering and Technology
Volume2012
Edition592 CP
ISBN (Electronic)9781849196161
DOIs
Publication statusPublished - 19 Jul 2012
Externally publishedYes
Event6th IET International Conference on Power Electronics, Machines and Drives - Bristol, United Kingdom
Duration: 27 Mar 201229 Mar 2012

Conference

Conference6th IET International Conference on Power Electronics, Machines and Drives
Abbreviated titlePEMD 2012
CountryUnited Kingdom
CityBristol
Period27/03/1229/03/12

Fingerprint

Permanent magnets
Torque
Topology
Fluxes
Inductance
Stators
Poles
Rotors
Finite element method
Electric potential

Cite this

Zhu, Z. Q., Al-Ani, M. M. J., Liu, X., Hasegawa, M., Pride, A., & Deodhar, R. (2012). Comparative study of torque-speed characteristics of alternate switched-flux permanent magnet machine topologies. In 6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012 (592 CP ed., Vol. 2012). Institution of Engineering and Technology. https://doi.org/10.1049/cp.2012.0257
Zhu, Zi Qiang ; Al-Ani, M. M J ; Liu, X. ; Hasegawa, M. ; Pride, A. ; Deodhar, R. / Comparative study of torque-speed characteristics of alternate switched-flux permanent magnet machine topologies. 6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012. Vol. 2012 592 CP. ed. Institution of Engineering and Technology, 2012.
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abstract = "This paper presents a comparative study of electromagnetic performance in switched flux permanent magnet (SFPM) machines with different topologies, i.e. conventional SFPM machines, multi-tooth, E-core and C-core SFPM machines. With the aid of 2D finite element analysis (FEA), the torque waveform, cogging torque, back-emf and d- and q- axis inductances are investigated and compared with emphasis on the torque-speed characteristics. In conventional SFPM machines, the influence of stator/rotor pole combination on the torque-speed characteristics is also investigated through 12/10, 12/13 and 12/14 SFPM machines. Compared with conventional SFPM machines, which exhibit limited speed range, infinite speed range is observed in multi-tooth, E-core and C-core SFPM machines, among which the highest average torque per ampere is achieved in E-core SFPM machine, albeit with relatively high torque ripples.",
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Zhu, ZQ, Al-Ani, MMJ, Liu, X, Hasegawa, M, Pride, A & Deodhar, R 2012, Comparative study of torque-speed characteristics of alternate switched-flux permanent magnet machine topologies. in 6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012. 592 CP edn, vol. 2012, Institution of Engineering and Technology, 6th IET International Conference on Power Electronics, Machines and Drives, Bristol, United Kingdom, 27/03/12. https://doi.org/10.1049/cp.2012.0257

Comparative study of torque-speed characteristics of alternate switched-flux permanent magnet machine topologies. / Zhu, Zi Qiang; Al-Ani, M. M J; Liu, X.; Hasegawa, M.; Pride, A.; Deodhar, R.

6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012. Vol. 2012 592 CP. ed. Institution of Engineering and Technology, 2012.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Zhu, Zi Qiang

AU - Al-Ani, M. M J

AU - Liu, X.

AU - Hasegawa, M.

AU - Pride, A.

AU - Deodhar, R.

PY - 2012/7/19

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N2 - This paper presents a comparative study of electromagnetic performance in switched flux permanent magnet (SFPM) machines with different topologies, i.e. conventional SFPM machines, multi-tooth, E-core and C-core SFPM machines. With the aid of 2D finite element analysis (FEA), the torque waveform, cogging torque, back-emf and d- and q- axis inductances are investigated and compared with emphasis on the torque-speed characteristics. In conventional SFPM machines, the influence of stator/rotor pole combination on the torque-speed characteristics is also investigated through 12/10, 12/13 and 12/14 SFPM machines. Compared with conventional SFPM machines, which exhibit limited speed range, infinite speed range is observed in multi-tooth, E-core and C-core SFPM machines, among which the highest average torque per ampere is achieved in E-core SFPM machine, albeit with relatively high torque ripples.

AB - This paper presents a comparative study of electromagnetic performance in switched flux permanent magnet (SFPM) machines with different topologies, i.e. conventional SFPM machines, multi-tooth, E-core and C-core SFPM machines. With the aid of 2D finite element analysis (FEA), the torque waveform, cogging torque, back-emf and d- and q- axis inductances are investigated and compared with emphasis on the torque-speed characteristics. In conventional SFPM machines, the influence of stator/rotor pole combination on the torque-speed characteristics is also investigated through 12/10, 12/13 and 12/14 SFPM machines. Compared with conventional SFPM machines, which exhibit limited speed range, infinite speed range is observed in multi-tooth, E-core and C-core SFPM machines, among which the highest average torque per ampere is achieved in E-core SFPM machine, albeit with relatively high torque ripples.

KW - Flux weakening capability

KW - SFPM machine

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Zhu ZQ, Al-Ani MMJ, Liu X, Hasegawa M, Pride A, Deodhar R. Comparative study of torque-speed characteristics of alternate switched-flux permanent magnet machine topologies. In 6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012. 592 CP ed. Vol. 2012. Institution of Engineering and Technology. 2012 https://doi.org/10.1049/cp.2012.0257