Composite materials for low loss rotor construction

JJ Wolmarans; M van der Geest; H Polinder; JA Ferreira; D Zeilstra

doi:10.1109/IEMDC.2011.5994862

Composite materials for low loss rotor construction

JJ Wolmarans, M van der Geest, H Polinder, JA Ferreira, D Zeilstra

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

10 Citations (Scopus)

Abstract

The use of concentrated windings in electrical machines leads to significant rotor losses due to severe space harmonics in the airgap. Metallic retaining sleeves and sintered magnets used in high speed rotor construction have low electrical resistivities, leading to larger associated eddy currents loss. Composite materials like carbon fiber and plastic bonded magnets are investigated, due to their relative low conductivity. Analysing eddy current loss in composites can be cumbersome as they are frequently anisotropic. By observing eddy currents induced in a sample material, the material resistivity may be derived for a given direction by reverse finite element modelling. Resistivity values may be further used to calculate rotor eddy current loss.

Original language	English
Title of host publication	Proceedings of the IEEE International Electric Machines & Drives Conference 2011
Editors	A Rahman, M Masrur
Place of Publication	Piscataway, NJ, USA
Publisher	IEEE Society
Pages	295-299
Number of pages	5
ISBN (Print)	978-1-4577-0060-6
DOIs	https://doi.org/10.1109/IEMDC.2011.5994862
Publication status	Published - 2011
Event	IEMDC 2011 - Piscataway, NJ, USA Duration: 15 May 2011 → 18 May 2011

Publication series

Name
Publisher	IEEE

Conference

Conference	IEMDC 2011
Period	15/05/11 → 18/05/11

Keywords

conference contrib. refereed
Conf.proc. > 3 pag

Access to Document

10.1109/IEMDC.2011.5994862

Cite this

@inproceedings{8a254aac519b4d328611daa62a15b293,

title = "Composite materials for low loss rotor construction",

abstract = "The use of concentrated windings in electrical machines leads to significant rotor losses due to severe space harmonics in the airgap. Metallic retaining sleeves and sintered magnets used in high speed rotor construction have low electrical resistivities, leading to larger associated eddy currents loss. Composite materials like carbon fiber and plastic bonded magnets are investigated, due to their relative low conductivity. Analysing eddy current loss in composites can be cumbersome as they are frequently anisotropic. By observing eddy currents induced in a sample material, the material resistivity may be derived for a given direction by reverse finite element modelling. Resistivity values may be further used to calculate rotor eddy current loss.",

keywords = "conference contrib. refereed, Conf.proc. > 3 pag",

author = "JJ Wolmarans and {van der Geest}, M and H Polinder and JA Ferreira and D Zeilstra",

year = "2011",

doi = "10.1109/IEMDC.2011.5994862",

language = "English",

isbn = "978-1-4577-0060-6",

publisher = "IEEE Society",

pages = "295--299",

editor = "A Rahman and M Masrur",

booktitle = "Proceedings of the IEEE International Electric Machines & Drives Conference 2011",

note = "IEMDC 2011 ; Conference date: 15-05-2011 Through 18-05-2011",

}

Composite materials for low loss rotor construction. / Wolmarans, JJ; van der Geest, M; Polinder, H et al.
Proceedings of the IEEE International Electric Machines & Drives Conference 2011. ed. / A Rahman; M Masrur. Piscataway, NJ, USA: IEEE Society, 2011. p. 295-299.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Composite materials for low loss rotor construction

AU - Wolmarans, JJ

AU - van der Geest, M

AU - Polinder, H

AU - Ferreira, JA

AU - Zeilstra, D

PY - 2011

Y1 - 2011

N2 - The use of concentrated windings in electrical machines leads to significant rotor losses due to severe space harmonics in the airgap. Metallic retaining sleeves and sintered magnets used in high speed rotor construction have low electrical resistivities, leading to larger associated eddy currents loss. Composite materials like carbon fiber and plastic bonded magnets are investigated, due to their relative low conductivity. Analysing eddy current loss in composites can be cumbersome as they are frequently anisotropic. By observing eddy currents induced in a sample material, the material resistivity may be derived for a given direction by reverse finite element modelling. Resistivity values may be further used to calculate rotor eddy current loss.

AB - The use of concentrated windings in electrical machines leads to significant rotor losses due to severe space harmonics in the airgap. Metallic retaining sleeves and sintered magnets used in high speed rotor construction have low electrical resistivities, leading to larger associated eddy currents loss. Composite materials like carbon fiber and plastic bonded magnets are investigated, due to their relative low conductivity. Analysing eddy current loss in composites can be cumbersome as they are frequently anisotropic. By observing eddy currents induced in a sample material, the material resistivity may be derived for a given direction by reverse finite element modelling. Resistivity values may be further used to calculate rotor eddy current loss.

KW - conference contrib. refereed

KW - Conf.proc. > 3 pag

U2 - 10.1109/IEMDC.2011.5994862

DO - 10.1109/IEMDC.2011.5994862

M3 - Conference contribution

SN - 978-1-4577-0060-6

SP - 295

EP - 299

BT - Proceedings of the IEEE International Electric Machines & Drives Conference 2011

A2 - Rahman, A

A2 - Masrur, M

PB - IEEE Society

CY - Piscataway, NJ, USA

T2 - IEMDC 2011

Y2 - 15 May 2011 through 18 May 2011

ER -

Composite materials for low loss rotor construction

Abstract

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Keywords

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