Homogenization and eddy current loss approximation of soft magnetic composite material for electrical machines

Shruti Singh; Joonas Vesa; Johan Gyselinck; Paavo Rasilo; Yves Mollet

doi:10.1049/icp.2021.1058

Homogenization and eddy current loss approximation of soft magnetic composite material for electrical machines

Shruti Singh^*
, Joonas Vesa
, Johan Gyselinck
, Paavo Rasilo
, Yves Mollet

^*Corresponding author for this work

Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

Abstract

This paper investigates the soft magnetic composite (SMC) material consisting of irregular grains with induced eddy currents using finite element analysis (FEA). SMC material is made up of iron grains separated by insulation gap. The geometry of the material has been determined using an algorithm based approach and an image based approach.The effective reluctivity has been determined using two homogenization techniques. The first homogenization technique makes use of an energy formulation. The eddy current effects are evaluated taking into consideration the fill factor of the 2-D SMC material.A low frequency approximation is realized for the homogenized material. In the second technique, non-linear properties are determined using the time-stepping technique. A method has been proposed in FEA for directly including an analytical eddy current loss formula for rotating electrical machines with SMC material cores. The eddy current loss and torque have been determined for the radial flux permanent magnet synchronous machine (PMSM) having an SMC stator core and the results are then compared with the laminated stator core machine.

Original language	English
Title of host publication	The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)
Publisher	IET
Pages	1024-1029
Number of pages	6
ISBN (Electronic)	978-1-83953-542-0
DOIs	https://doi.org/10.1049/icp.2021.1058
Publication status	Published - 2020
Publication type	A4 Article in conference proceedings
Event	International Conference on Power Electronics, Machines and Drives - Duration: 15 Dec 2020 → 17 Dec 2020

Conference

Conference	International Conference on Power Electronics, Machines and Drives
Period	15/12/20 → 17/12/20

Funding

This work is supported by European Industrial Doctorate on Next Generation for Sustainable Automotive Electrical Actuation (INTERACT) project which has obtained funding from the European Union Horizon 2020 research and innovation programme.The grant agreement number for this project is 766180.

Keywords

Complex permeability
Finite element analysis
Homogenization
Soft magnetic composite material

Publication forum classification

Publication forum level 0

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1049/icp.2021.1058

Cite this

@inproceedings{f3542cf472e843dbb40b83dddcf32e91,

title = "Homogenization and eddy current loss approximation of soft magnetic composite material for electrical machines",

abstract = "This paper investigates the soft magnetic composite (SMC) material consisting of irregular grains with induced eddy currents using finite element analysis (FEA). SMC material is made up of iron grains separated by insulation gap. The geometry of the material has been determined using an algorithm based approach and an image based approach.The effective reluctivity has been determined using two homogenization techniques. The first homogenization technique makes use of an energy formulation. The eddy current effects are evaluated taking into consideration the fill factor of the 2-D SMC material.A low frequency approximation is realized for the homogenized material. In the second technique, non-linear properties are determined using the time-stepping technique. A method has been proposed in FEA for directly including an analytical eddy current loss formula for rotating electrical machines with SMC material cores. The eddy current loss and torque have been determined for the radial flux permanent magnet synchronous machine (PMSM) having an SMC stator core and the results are then compared with the laminated stator core machine.",

keywords = "Complex permeability, Finite element analysis, Homogenization, Soft magnetic composite material",

author = "Shruti Singh and Joonas Vesa and Johan Gyselinck and Paavo Rasilo and Yves Mollet",

note = "Funding Information: This work is supported by European Industrial Doctorate on Next Generation for Sustainable Automotive Electrical Actuation (INTERACT) project which has obtained funding from the European Union Horizon 2020 research and innovation programme.The grant agreement number for this project is 766180. Publisher Copyright: {\textcopyright} PEMD 2020.All right reserved. jufoid=72932; International Conference on Power Electronics, Machines and Drives ; Conference date: 15-12-2020 Through 17-12-2020",

year = "2020",

doi = "10.1049/icp.2021.1058",

language = "English",

pages = "1024--1029",

booktitle = "The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)",

publisher = "IET",

}

Singh, S, Vesa, J, Gyselinck, J, Rasilo, P & Mollet, Y 2020, Homogenization and eddy current loss approximation of soft magnetic composite material for electrical machines. in The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020). IET, pp. 1024-1029, International Conference on Power Electronics, Machines and Drives, 15/12/20. https://doi.org/10.1049/icp.2021.1058

Homogenization and eddy current loss approximation of soft magnetic composite material for electrical machines. / Singh, Shruti; Vesa, Joonas; Gyselinck, Johan et al.
The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020). IET, 2020. p. 1024-1029.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Homogenization and eddy current loss approximation of soft magnetic composite material for electrical machines

AU - Singh, Shruti

AU - Vesa, Joonas

AU - Gyselinck, Johan

AU - Rasilo, Paavo

AU - Mollet, Yves

N1 - Funding Information: This work is supported by European Industrial Doctorate on Next Generation for Sustainable Automotive Electrical Actuation (INTERACT) project which has obtained funding from the European Union Horizon 2020 research and innovation programme.The grant agreement number for this project is 766180. Publisher Copyright: © PEMD 2020.All right reserved. jufoid=72932

PY - 2020

Y1 - 2020

N2 - This paper investigates the soft magnetic composite (SMC) material consisting of irregular grains with induced eddy currents using finite element analysis (FEA). SMC material is made up of iron grains separated by insulation gap. The geometry of the material has been determined using an algorithm based approach and an image based approach.The effective reluctivity has been determined using two homogenization techniques. The first homogenization technique makes use of an energy formulation. The eddy current effects are evaluated taking into consideration the fill factor of the 2-D SMC material.A low frequency approximation is realized for the homogenized material. In the second technique, non-linear properties are determined using the time-stepping technique. A method has been proposed in FEA for directly including an analytical eddy current loss formula for rotating electrical machines with SMC material cores. The eddy current loss and torque have been determined for the radial flux permanent magnet synchronous machine (PMSM) having an SMC stator core and the results are then compared with the laminated stator core machine.

AB - This paper investigates the soft magnetic composite (SMC) material consisting of irregular grains with induced eddy currents using finite element analysis (FEA). SMC material is made up of iron grains separated by insulation gap. The geometry of the material has been determined using an algorithm based approach and an image based approach.The effective reluctivity has been determined using two homogenization techniques. The first homogenization technique makes use of an energy formulation. The eddy current effects are evaluated taking into consideration the fill factor of the 2-D SMC material.A low frequency approximation is realized for the homogenized material. In the second technique, non-linear properties are determined using the time-stepping technique. A method has been proposed in FEA for directly including an analytical eddy current loss formula for rotating electrical machines with SMC material cores. The eddy current loss and torque have been determined for the radial flux permanent magnet synchronous machine (PMSM) having an SMC stator core and the results are then compared with the laminated stator core machine.

KW - Complex permeability

KW - Finite element analysis

KW - Homogenization

KW - Soft magnetic composite material

U2 - 10.1049/icp.2021.1058

DO - 10.1049/icp.2021.1058

M3 - Conference contribution

AN - SCOPUS:85117688605

SP - 1024

EP - 1029

BT - The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)

PB - IET

T2 - International Conference on Power Electronics, Machines and Drives

Y2 - 15 December 2020 through 17 December 2020

ER -

Homogenization and eddy current loss approximation of soft magnetic composite material for electrical machines

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Keywords

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