Comparison of analytical and finite element calculation of eddy-current losses in PM machines

AK Jassal; H Polinder; DJP Lahaye; JA Ferreira

doi:doi:10.1109/ICELMACH.2010.5607907

Comparison of analytical and finite element calculation of eddy-current losses in PM machines

AK Jassal, H Polinder, DJP Lahaye, JA Ferreira

Numerical Analysis

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

Abstract

Permanent Magnet machines have a high force density and high efficiency. These machines can be made cost effective by using fractional-pitch windings as the fabrication of such windings can be automated. However, one big challenge to design such machines is to analyze the eddy-current losses, specifically in solid back-iron of the rotor/translator and magnets. This paper compares analytical calculation of eddy current losses with Finite Element (FE) calculation. The model is applied to calculate the losses in the solid back-iron of the linear PM generator of the Archimedes Wave Swing (AWS) for different combinations of number of poles and teeth. It was concluded that Eddy current losses in analytical model are over estimated for lower order harmonics and under estimated for higher order harmonics. The total losses however for both analytical and FE methods were found to be similar. Thus, the analytical method can be used to compare eddy current losses in topologies with different slot-pole combinations.

Original language	English
Title of host publication	XIX International Conference on Electrical Machines (ICEM 2010)
Editors	E Santini, F Crescimbini, F Parasiliti
Place of Publication	Rome, Italy
Publisher	IEEE
Pages	1-7
Number of pages	7
ISBN (Print)	978-1-4244-4174-7
DOIs	https://doi.org/doi:10.1109/ICELMACH.2010.5607907
Publication status	Published - 2010
Event	ICEM 2010: XIX International Conference on Electrical Machines - Rome, Italy Duration: 6 Sept 2010 → 8 Sept 2010 Conference number: 19

Publication series

Name
Publisher	IEEE

Conference

Conference	ICEM 2010
Country/Territory	Italy
City	Rome
Period	6/09/10 → 8/09/10

Keywords

Wiskunde en Informatica
Techniek
technische Wiskunde en Informatica
conference contrib. refereed
Conf.proc. > 3 pag

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doi:10.1109/ICELMACH.2010.5607907

Cite this

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title = "Comparison of analytical and finite element calculation of eddy-current losses in PM machines",

abstract = "Permanent Magnet machines have a high force density and high efficiency. These machines can be made cost effective by using fractional-pitch windings as the fabrication of such windings can be automated. However, one big challenge to design such machines is to analyze the eddy-current losses, specifically in solid back-iron of the rotor/translator and magnets. This paper compares analytical calculation of eddy current losses with Finite Element (FE) calculation. The model is applied to calculate the losses in the solid back-iron of the linear PM generator of the Archimedes Wave Swing (AWS) for different combinations of number of poles and teeth. It was concluded that Eddy current losses in analytical model are over estimated for lower order harmonics and under estimated for higher order harmonics. The total losses however for both analytical and FE methods were found to be similar. Thus, the analytical method can be used to compare eddy current losses in topologies with different slot-pole combinations.",

keywords = "Wiskunde en Informatica, Techniek, technische Wiskunde en Informatica, conference contrib. refereed, Conf.proc. > 3 pag",

author = "AK Jassal and H Polinder and DJP Lahaye and JA Ferreira",

year = "2010",

doi = "doi:10.1109/ICELMACH.2010.5607907",

language = "English",

isbn = "978-1-4244-4174-7",

publisher = "IEEE",

pages = "1--7",

editor = "E Santini and F Crescimbini and F Parasiliti",

booktitle = "XIX International Conference on Electrical Machines (ICEM 2010)",

address = "United States",

note = "ICEM 2010 : XIX International Conference on Electrical Machines ; Conference date: 06-09-2010 Through 08-09-2010",

}

Jassal, AK, Polinder, H , Lahaye, DJP & Ferreira, JA 2010, Comparison of analytical and finite element calculation of eddy-current losses in PM machines. in E Santini, F Crescimbini & F Parasiliti (eds), XIX International Conference on Electrical Machines (ICEM 2010). IEEE, Rome, Italy, pp. 1-7, ICEM 2010, Rome, Italy, 6/09/10. https://doi.org/doi:10.1109/ICELMACH.2010.5607907

Comparison of analytical and finite element calculation of eddy-current losses in PM machines. / Jassal, AK; Polinder, H ; Lahaye, DJP et al.
XIX International Conference on Electrical Machines (ICEM 2010). ed. / E Santini; F Crescimbini; F Parasiliti. Rome, Italy: IEEE, 2010. p. 1-7.

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

TY - GEN

T1 - Comparison of analytical and finite element calculation of eddy-current losses in PM machines

AU - Jassal, AK

AU - Polinder, H

AU - Lahaye, DJP

AU - Ferreira, JA

N1 - Conference code: 19

PY - 2010

Y1 - 2010

N2 - Permanent Magnet machines have a high force density and high efficiency. These machines can be made cost effective by using fractional-pitch windings as the fabrication of such windings can be automated. However, one big challenge to design such machines is to analyze the eddy-current losses, specifically in solid back-iron of the rotor/translator and magnets. This paper compares analytical calculation of eddy current losses with Finite Element (FE) calculation. The model is applied to calculate the losses in the solid back-iron of the linear PM generator of the Archimedes Wave Swing (AWS) for different combinations of number of poles and teeth. It was concluded that Eddy current losses in analytical model are over estimated for lower order harmonics and under estimated for higher order harmonics. The total losses however for both analytical and FE methods were found to be similar. Thus, the analytical method can be used to compare eddy current losses in topologies with different slot-pole combinations.

AB - Permanent Magnet machines have a high force density and high efficiency. These machines can be made cost effective by using fractional-pitch windings as the fabrication of such windings can be automated. However, one big challenge to design such machines is to analyze the eddy-current losses, specifically in solid back-iron of the rotor/translator and magnets. This paper compares analytical calculation of eddy current losses with Finite Element (FE) calculation. The model is applied to calculate the losses in the solid back-iron of the linear PM generator of the Archimedes Wave Swing (AWS) for different combinations of number of poles and teeth. It was concluded that Eddy current losses in analytical model are over estimated for lower order harmonics and under estimated for higher order harmonics. The total losses however for both analytical and FE methods were found to be similar. Thus, the analytical method can be used to compare eddy current losses in topologies with different slot-pole combinations.

KW - Wiskunde en Informatica

KW - Techniek

KW - technische Wiskunde en Informatica

KW - conference contrib. refereed

KW - Conf.proc. > 3 pag

U2 - doi:10.1109/ICELMACH.2010.5607907

DO - doi:10.1109/ICELMACH.2010.5607907

M3 - Conference contribution

SN - 978-1-4244-4174-7

SP - 1

EP - 7

BT - XIX International Conference on Electrical Machines (ICEM 2010)

A2 - Santini, E

A2 - Crescimbini, F

A2 - Parasiliti, F

PB - IEEE

CY - Rome, Italy

T2 - ICEM 2010

Y2 - 6 September 2010 through 8 September 2010

ER -

Comparison of analytical and finite element calculation of eddy-current losses in PM machines

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