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

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2020-02-19
Major/Subject
Mcode
Degree programme
Language
en
Pages
11
Series
IEEE Transactions on Energy Conversion
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.
Description
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