AC Iron Loss Investigation with Consideration of a DC Bias Magnetisation in Non-Grain Oriented Electrical Steel Sheets

Christoph Dobler; Gilsu Choi; Gereon Goldbeck; Daniel Wöckinger; Gerd Bramerdorfer

doi:10.1109/CEFC61729.2024.10586123

AC Iron Loss Investigation with Consideration of a DC Bias Magnetisation in Non-Grain Oriented Electrical Steel Sheets

Christoph Dobler, Gilsu Choi, Gereon Goldbeck, Daniel Wöckinger, Gerd Bramerdorfer

Johannes Kepler University Linz

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

Abstract

This work deals with the characterisation and modelling of AC iron losses, of non grain oriented (NO) soft magnetic steel sheets, under the presence of a DC bias magnetisation. Such DC fields occur in multiple electrical motor topologies, e.g., permanent magnet synchronous machines (PMSM), and lead to increased local iron losses, and therefore a greater demagnetisation risk of permanent magnets in use. Hence, this loss increase needs to be accounted for. In this paper numerous NO steel sheet samples are characterised and the influence of multiple parameters affecting losses is discussed. Furthermore, loss modelling approaches are presented and evaluated regarding their applicability in electric machine design.

Original language	English
Title of host publication	CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798350348958
DOIs	https://doi.org/10.1109/CEFC61729.2024.10586123
State	Published - 2024
Event	21st IEEE Biennial Conference on Electromagnetic Field Computation, CEFC 2024 - Jeju, Korea, Republic of Duration: 2 Jun 2024 → 5 Jun 2024

Publication series

Name	CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation

Conference

Conference	21st IEEE Biennial Conference on Electromagnetic Field Computation, CEFC 2024
Country/Territory	Korea, Republic of
City	Jeju
Period	2/06/24 → 5/06/24

Bibliographical note

Publisher Copyright:
© 2024 IEEE.

Keywords

DC bias
iron loss modelling
non grain oriented steel
soft magnetic materials

Access to Document

10.1109/CEFC61729.2024.10586123

Cite this

Dobler, C., Choi, G., Goldbeck, G., Wöckinger, D., & Bramerdorfer, G. (2024). AC Iron Loss Investigation with Consideration of a DC Bias Magnetisation in Non-Grain Oriented Electrical Steel Sheets. In CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation (CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CEFC61729.2024.10586123

Dobler, Christoph ; Choi, Gilsu ; Goldbeck, Gereon et al. / AC Iron Loss Investigation with Consideration of a DC Bias Magnetisation in Non-Grain Oriented Electrical Steel Sheets. CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation. Institute of Electrical and Electronics Engineers Inc., 2024. (CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation).

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title = "AC Iron Loss Investigation with Consideration of a DC Bias Magnetisation in Non-Grain Oriented Electrical Steel Sheets",

abstract = "This work deals with the characterisation and modelling of AC iron losses, of non grain oriented (NO) soft magnetic steel sheets, under the presence of a DC bias magnetisation. Such DC fields occur in multiple electrical motor topologies, e.g., permanent magnet synchronous machines (PMSM), and lead to increased local iron losses, and therefore a greater demagnetisation risk of permanent magnets in use. Hence, this loss increase needs to be accounted for. In this paper numerous NO steel sheet samples are characterised and the influence of multiple parameters affecting losses is discussed. Furthermore, loss modelling approaches are presented and evaluated regarding their applicability in electric machine design.",

keywords = "DC bias, iron loss modelling, non grain oriented steel, soft magnetic materials",

author = "Christoph Dobler and Gilsu Choi and Gereon Goldbeck and Daniel W{\"o}ckinger and Gerd Bramerdorfer",

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year = "2024",

doi = "10.1109/CEFC61729.2024.10586123",

language = "English",

series = "CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation",

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Dobler, C, Choi, G, Goldbeck, G, Wöckinger, D & Bramerdorfer, G 2024, AC Iron Loss Investigation with Consideration of a DC Bias Magnetisation in Non-Grain Oriented Electrical Steel Sheets. in CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation. CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation, Institute of Electrical and Electronics Engineers Inc., 21st IEEE Biennial Conference on Electromagnetic Field Computation, CEFC 2024, Jeju, Korea, Republic of, 2/06/24. https://doi.org/10.1109/CEFC61729.2024.10586123

AC Iron Loss Investigation with Consideration of a DC Bias Magnetisation in Non-Grain Oriented Electrical Steel Sheets. / Dobler, Christoph; Choi, Gilsu; Goldbeck, Gereon et al.
CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation. Institute of Electrical and Electronics Engineers Inc., 2024. (CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation).

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

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AU - Bramerdorfer, Gerd

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N2 - This work deals with the characterisation and modelling of AC iron losses, of non grain oriented (NO) soft magnetic steel sheets, under the presence of a DC bias magnetisation. Such DC fields occur in multiple electrical motor topologies, e.g., permanent magnet synchronous machines (PMSM), and lead to increased local iron losses, and therefore a greater demagnetisation risk of permanent magnets in use. Hence, this loss increase needs to be accounted for. In this paper numerous NO steel sheet samples are characterised and the influence of multiple parameters affecting losses is discussed. Furthermore, loss modelling approaches are presented and evaluated regarding their applicability in electric machine design.

AB - This work deals with the characterisation and modelling of AC iron losses, of non grain oriented (NO) soft magnetic steel sheets, under the presence of a DC bias magnetisation. Such DC fields occur in multiple electrical motor topologies, e.g., permanent magnet synchronous machines (PMSM), and lead to increased local iron losses, and therefore a greater demagnetisation risk of permanent magnets in use. Hence, this loss increase needs to be accounted for. In this paper numerous NO steel sheet samples are characterised and the influence of multiple parameters affecting losses is discussed. Furthermore, loss modelling approaches are presented and evaluated regarding their applicability in electric machine design.

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KW - soft magnetic materials

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Dobler C, Choi G, Goldbeck G, Wöckinger D, Bramerdorfer G. AC Iron Loss Investigation with Consideration of a DC Bias Magnetisation in Non-Grain Oriented Electrical Steel Sheets. In CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation. Institute of Electrical and Electronics Engineers Inc. 2024. (CEFC 2024 - 21st IEEE Biennial Conference on Electromagnetic Field Computation). doi: 10.1109/CEFC61729.2024.10586123

AC Iron Loss Investigation with Consideration of a DC Bias Magnetisation in Non-Grain Oriented Electrical Steel Sheets

Abstract

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