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

Maksim Sokolov; Seppo E. Saarakkala; Reza Hosseinzadeh; Marko Hinkkanen

doi:10.1109/TEC.2020.2975082

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

Maksim Sokolov, Seppo E. Saarakkala, Reza Hosseinzadeh, Marko Hinkkanen

Research output: Contribution to journal › Article › Scientific › peer-review

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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.

Original language	English
Article number	9003283
Pages (from-to)	1218-1227
Number of pages	10
Journal	IEEE Transactions on Energy Conversion
Volume	35
Issue number	3
DOIs	https://doi.org/10.1109/TEC.2020.2975082
Publication status	Published - 19 Feb 2020
MoE publication type	A1 Journal article-refereed

Keywords

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

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10.1109/TEC.2020.2975082

ELEC_A-Dynamic-Model_IEEETraEneCon_2020_acceptedauthormanuscriptAccepted author manuscript, 7.69 MB

Cite this

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title = "A dynamic model for bearingless flux-switching permanent-magnet linear machines",

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

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Keywords

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