Convergence analysis of SEM and FEM based on analytical field distribution in the airgap

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The optimisation routines and the validation models for the Electrical Machines (EM) are often based on Finite Element Method (FEM) models. However, the computation time for these models is manifestly high, and they are often replaced by semi-analytical models, which approximate the essential performance of the machine with reduced computational cost. Therefore, the trade-off between the model accuracy and the size of the problem leads to the appropriate choice of the modelling technique. Recently, Spectral Element Method (SEM) which uses higher order mesh elements compared to FEM has been implemented for EM. The latter benefits from high convergence rate, resulting in a smaller size of the problem. Therefore, it is considered as a potential option for building low cost EM models. However, complex EM geometries are challenging for any modelling technique limiting their accuracy by the high aspect ratio and shapes with sharp corners. Therefore, the performance analysis must be thoroughly checked before making the choice.
In this paper the performance analysis of both SEM and FEM are performed. An analytical solution which is generated by the Harmonic Model (HM) with a finite number of source harmonics, is considered as a reference.
Originele taal-2Engels
Titel IEEE 2018 International Magnetics Conference
UitgeverijIEEE Press
Aantal pagina's2
ISBN van elektronische versie978-1-5386-6425-4
DOI's
StatusGepubliceerd - jan 2018
Evenement2018 IEEE International Magnetics Conference (INTERMAG 2018) - Marina Bay Sands Convention Center, Singapore, Singapore, Singapore
Duur: 23 apr 201827 apr 2018
http://www.intermag2018.com/

Congres

Congres2018 IEEE International Magnetics Conference (INTERMAG 2018)
Verkorte titelINTERMAG 2018
LandSingapore
StadSingapore
Periode23/04/1827/04/18
Internet adres

Vingerafdruk

Finite element method
Costs
Aspect ratio
Analytical models
Geometry

Citeer dit

@inproceedings{f9d92292a06544d6a7de7bf6b6cd10a1,
title = "Convergence analysis of SEM and FEM based on analytical field distribution in the airgap",
abstract = "The optimisation routines and the validation models for the Electrical Machines (EM) are often based on Finite Element Method (FEM) models. However, the computation time for these models is manifestly high, and they are often replaced by semi-analytical models, which approximate the essential performance of the machine with reduced computational cost. Therefore, the trade-off between the model accuracy and the size of the problem leads to the appropriate choice of the modelling technique. Recently, Spectral Element Method (SEM) which uses higher order mesh elements compared to FEM has been implemented for EM. The latter benefits from high convergence rate, resulting in a smaller size of the problem. Therefore, it is considered as a potential option for building low cost EM models. However, complex EM geometries are challenging for any modelling technique limiting their accuracy by the high aspect ratio and shapes with sharp corners. Therefore, the performance analysis must be thoroughly checked before making the choice.In this paper the performance analysis of both SEM and FEM are performed. An analytical solution which is generated by the Harmonic Model (HM) with a finite number of source harmonics, is considered as a reference.",
keywords = "Finite Element Method (FEM), Spectral Element Method, Convergence",
author = "M. Curti and J.W. Jansen and E.A. Lomonova",
year = "2018",
month = "1",
doi = "10.1109/INTMAG.2018.8508552",
language = "English",
booktitle = "IEEE 2018 International Magnetics Conference",
publisher = "IEEE Press",

}

Curti, M, Jansen, JW & Lomonova, EA 2018, Convergence analysis of SEM and FEM based on analytical field distribution in the airgap. in IEEE 2018 International Magnetics Conference., 8508552, IEEE Press, 2018 IEEE International Magnetics Conference (INTERMAG 2018), Singapore, Singapore, 23/04/18. https://doi.org/10.1109/INTMAG.2018.8508552

Convergence analysis of SEM and FEM based on analytical field distribution in the airgap. / Curti, M.; Jansen, J.W.; Lomonova, E.A.

IEEE 2018 International Magnetics Conference. IEEE Press, 2018. 8508552.

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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N2 - The optimisation routines and the validation models for the Electrical Machines (EM) are often based on Finite Element Method (FEM) models. However, the computation time for these models is manifestly high, and they are often replaced by semi-analytical models, which approximate the essential performance of the machine with reduced computational cost. Therefore, the trade-off between the model accuracy and the size of the problem leads to the appropriate choice of the modelling technique. Recently, Spectral Element Method (SEM) which uses higher order mesh elements compared to FEM has been implemented for EM. The latter benefits from high convergence rate, resulting in a smaller size of the problem. Therefore, it is considered as a potential option for building low cost EM models. However, complex EM geometries are challenging for any modelling technique limiting their accuracy by the high aspect ratio and shapes with sharp corners. Therefore, the performance analysis must be thoroughly checked before making the choice.In this paper the performance analysis of both SEM and FEM are performed. An analytical solution which is generated by the Harmonic Model (HM) with a finite number of source harmonics, is considered as a reference.

AB - The optimisation routines and the validation models for the Electrical Machines (EM) are often based on Finite Element Method (FEM) models. However, the computation time for these models is manifestly high, and they are often replaced by semi-analytical models, which approximate the essential performance of the machine with reduced computational cost. Therefore, the trade-off between the model accuracy and the size of the problem leads to the appropriate choice of the modelling technique. Recently, Spectral Element Method (SEM) which uses higher order mesh elements compared to FEM has been implemented for EM. The latter benefits from high convergence rate, resulting in a smaller size of the problem. Therefore, it is considered as a potential option for building low cost EM models. However, complex EM geometries are challenging for any modelling technique limiting their accuracy by the high aspect ratio and shapes with sharp corners. Therefore, the performance analysis must be thoroughly checked before making the choice.In this paper the performance analysis of both SEM and FEM are performed. An analytical solution which is generated by the Harmonic Model (HM) with a finite number of source harmonics, is considered as a reference.

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