Investigation and Analysis of Flux-Weakening Capability in Axial-Flux Permanent Magnet Machines

Rundong Huang; Bowen Zhang; Hongwu Chen; Chunhua Liu

doi:10.1109/CIEEC64805.2025.11116739

Investigation and Analysis of Flux-Weakening Capability in Axial-Flux Permanent Magnet Machines

Rundong Huang
, Bowen Zhang
, Hongwu Chen
, Chunhua Liu^*

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

Axial-flux permanent magnet (AFPM) machines are welcomed widely in many areas. As a key performance, their flux-weakening capability needs to be investigated. Due to the surface-mounted rotor of AFPM machines, the flux-weakening capability is mainly related to the pole-slot configuration (PSC). Then, the effect of PSCs on the flux linkage and inductance is analyzed. The flux-weakening coefficients of various PSCs are also calculated with the acquired flux linkages and inductances. The torque-speed curve is also calculated through the finite element method. The curve shows a similar variation trend to the coefficient. It is validated that fractional-slot concentrated winding configurations have a stronger flux-weakening capability. © 2025 IEEE.

Original language	English
Title of host publication	2025 IEEE 8th International Electrical and Energy Conference (CIEEC)
Publisher	IEEE
Pages	2372-2377
ISBN (Electronic)	9798331542979, 979-8-3315-4296-2
ISBN (Print)	979-8-3315-4298-6
DOIs	https://doi.org/10.1109/CIEEC64805.2025.11116739
Publication status	Published - 2025
Event	8th IEEE International Electrical and Energy Conference (CIEEC 2025) - Changsha, China Duration: 16 May 2025 → 18 May 2025

Publication series

Name	IEEE International Electrical and Energy Conference, CIEEC

Conference

Conference	8th IEEE International Electrical and Energy Conference (CIEEC 2025)
Place	China
City	Changsha
Period	16/05/25 → 18/05/25

Funding

This work was supported in part by a grant (Project No. 52077186 and 52377069) from Natural Science Foundation of China (NSFC), China; in part by RGC Collaborative Research Fund (Project No. C1052-21GF) from Research Grants Council, Hong Kong SAR; and in part by RGC Research Fellow Scheme (RGC Ref. No.: RFS2223-1S05) from Research Grants Council, Hong Kong SAR

Research Keywords

Axial-flux permanent magnet machine
flux-weakening capability
inductance
pole-slot configuration

RGC Funding Information

RGC-funded

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10.1109/CIEEC64805.2025.11116739

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Cite this

@inproceedings{59fe72ec9e014a9381ad41da93a95320,

title = "Investigation and Analysis of Flux-Weakening Capability in Axial-Flux Permanent Magnet Machines",

abstract = "Axial-flux permanent magnet (AFPM) machines are welcomed widely in many areas. As a key performance, their flux-weakening capability needs to be investigated. Due to the surface-mounted rotor of AFPM machines, the flux-weakening capability is mainly related to the pole-slot configuration (PSC). Then, the effect of PSCs on the flux linkage and inductance is analyzed. The flux-weakening coefficients of various PSCs are also calculated with the acquired flux linkages and inductances. The torque-speed curve is also calculated through the finite element method. The curve shows a similar variation trend to the coefficient. It is validated that fractional-slot concentrated winding configurations have a stronger flux-weakening capability. {\textcopyright} 2025 IEEE.",

keywords = "Axial-flux permanent magnet machine, flux-weakening capability, inductance, pole-slot configuration",

author = "Rundong Huang and Bowen Zhang and Hongwu Chen and Chunhua Liu",

year = "2025",

doi = "10.1109/CIEEC64805.2025.11116739",

language = "English",

isbn = "979-8-3315-4298-6",

series = "IEEE International Electrical and Energy Conference, CIEEC",

publisher = "IEEE",

pages = "2372--2377",

booktitle = "2025 IEEE 8th International Electrical and Energy Conference (CIEEC)",

address = "United States",

note = "8th IEEE International Electrical and Energy Conference (CIEEC 2025) ; Conference date: 16-05-2025 Through 18-05-2025",

}

Huang, R , Zhang, B , Chen, H & Liu, C 2025, Investigation and Analysis of Flux-Weakening Capability in Axial-Flux Permanent Magnet Machines. in 2025 IEEE 8th International Electrical and Energy Conference (CIEEC). IEEE International Electrical and Energy Conference, CIEEC, IEEE, pp. 2372-2377, 8th IEEE International Electrical and Energy Conference (CIEEC 2025), Changsha, China, 16/05/25. https://doi.org/10.1109/CIEEC64805.2025.11116739

Investigation and Analysis of Flux-Weakening Capability in Axial-Flux Permanent Magnet Machines. / Huang, Rundong ; Zhang, Bowen ; Chen, Hongwu et al.
2025 IEEE 8th International Electrical and Energy Conference (CIEEC). IEEE, 2025. p. 2372-2377 (IEEE International Electrical and Energy Conference, CIEEC).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Investigation and Analysis of Flux-Weakening Capability in Axial-Flux Permanent Magnet Machines

AU - Huang, Rundong

AU - Zhang, Bowen

AU - Chen, Hongwu

AU - Liu, Chunhua

PY - 2025

Y1 - 2025

N2 - Axial-flux permanent magnet (AFPM) machines are welcomed widely in many areas. As a key performance, their flux-weakening capability needs to be investigated. Due to the surface-mounted rotor of AFPM machines, the flux-weakening capability is mainly related to the pole-slot configuration (PSC). Then, the effect of PSCs on the flux linkage and inductance is analyzed. The flux-weakening coefficients of various PSCs are also calculated with the acquired flux linkages and inductances. The torque-speed curve is also calculated through the finite element method. The curve shows a similar variation trend to the coefficient. It is validated that fractional-slot concentrated winding configurations have a stronger flux-weakening capability. © 2025 IEEE.

AB - Axial-flux permanent magnet (AFPM) machines are welcomed widely in many areas. As a key performance, their flux-weakening capability needs to be investigated. Due to the surface-mounted rotor of AFPM machines, the flux-weakening capability is mainly related to the pole-slot configuration (PSC). Then, the effect of PSCs on the flux linkage and inductance is analyzed. The flux-weakening coefficients of various PSCs are also calculated with the acquired flux linkages and inductances. The torque-speed curve is also calculated through the finite element method. The curve shows a similar variation trend to the coefficient. It is validated that fractional-slot concentrated winding configurations have a stronger flux-weakening capability. © 2025 IEEE.

KW - Axial-flux permanent magnet machine

KW - flux-weakening capability

KW - inductance

KW - pole-slot configuration

UR - https://www.scopus.com/pages/publications/105015733618

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105015733618&origin=recordpage

U2 - 10.1109/CIEEC64805.2025.11116739

DO - 10.1109/CIEEC64805.2025.11116739

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 979-8-3315-4298-6

T3 - IEEE International Electrical and Energy Conference, CIEEC

SP - 2372

EP - 2377

BT - 2025 IEEE 8th International Electrical and Energy Conference (CIEEC)

PB - IEEE

T2 - 8th IEEE International Electrical and Energy Conference (CIEEC 2025)

Y2 - 16 May 2025 through 18 May 2025

ER -

Investigation and Analysis of Flux-Weakening Capability in Axial-Flux Permanent Magnet Machines

Abstract

Publication series

Conference

Funding

Research Keywords

RGC Funding Information

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Permanent Link

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RFS: Development of Advanced Electric Machines and Smart Power Drives for Electric Propulsion

Cite this

Investigation and Analysis of Flux-Weakening Capability in Axial-Flux Permanent Magnet Machines

Abstract

Publication series

Conference

Funding

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

RFS: Development of Advanced Electric Machines and Smart Power Drives for Electric Propulsion

Cite this