A dynamic model for bearingless flux-switching permanent-magnet linear machines

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Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2020-02-19

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Language

en

Pages

10

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IEEE Transactions on Energy Conversion, Volume 35, issue 3, pp. 1218-1227

Abstract

This article deals with dynamic models for three-phase bearingless flux-switching permanent-magnet (FSPM) linear machines. This machine type can be used to build a magnetically levitating long-range linear drive system, whose rail does not need any active materials apart from iron. A dynamic machine model is developed by means of equivalent magnetic models, taking into account air-gap variation and magnetic saturation. The effects of these phenomena are analyzed using finite-element method (FEM) simulations of a test machine. The parameters of the proposed model can be identified using the FEM or measured data. The model can be applied to real-time control and time-domain simulations. The model is validated by means of experiments.

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Keywords

Bearings, Flux-switching, Permanent-magnet (FSPM) machine, Linear least squares (LLS), Linear motor, Magnetic levitation, Magnetic model, Modeling

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Citation

Sokolov, M, Saarakkala, S E, Hosseinzadeh, R & Hinkkanen, M 2020, ' A dynamic model for bearingless flux-switching permanent-magnet linear machines ', IEEE Transactions on Energy Conversion, vol. 35, no. 3, 9003283, pp. 1218-1227 . https://doi.org/10.1109/TEC.2020.2975082