Unbalanced Axial Forces in Axial-Flux Machines

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  (Accepted version)

Date

2023

Authors

Soong, W.L.
Cao, Z.
Roshandel, E.
Mahmoudi, A.
Kahourzade, S.

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Conference paper

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Proceedings of the 32nd Australasian Universities Power Engineering Conference (AUPEC 2022), 2023, pp.1-6

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Wen L. Soong, Zhi Cao, Emad Roshandel, Amin Mahmoudi, Solmaz Kahourzade

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Australasian Universities Power Engineering Conference (AUPEC) (26 Sep 2022 - 28 Sep 2022 : Adelaide, South Australia)

Abstract

This paper performs an analysis of the variation of unbalanced forces with airgap length in axial-flux machines. A simple analytical approach is used to provide insights into these key parameters and the results compared with finite-element results for both axial-flux permanent magnet (PM) and induction machines. For PM and current-driven induction machines, the two most important parameters are the ratio of the effective magnet/core magnetic path length to the nominal airgap, and the ratio of the saturation flux density to the nominal airgap flux density. For voltage-driven induction machines, the key parameter is the ratio of stator leakage inductance to the nominal magnetising inductance.

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© 2022, IEEE

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