Proximity losses in the windings of high speed brushless permanent magnet AC motors with single tooth windings and parallel paths

Popescu, M; Dorrell, DG

Proximity losses in the windings of high speed brushless permanent magnet AC motors with single tooth windings and parallel paths

Popescu, M Dorrell, DG

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Magnetics, 2013, 49 (7), pp. 3913 - 3916
Issue Date:: 2013-08-02

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Field	Value	Language
dc.contributor.author	Popescu, M	en_US
dc.contributor.author	Dorrell, DG https://orcid.org/0000-0001-8060-3386	en_US
dc.date.issued	2013-08-02	en_US
dc.identifier.citation	IEEE Transactions on Magnetics, 2013, 49 (7), pp. 3913 - 3916	en_US
dc.identifier.issn	0018-9464	en_US
dc.identifier.uri	http://hdl.handle.net/10453/27221
dc.description.abstract	Proximity and additional eddy-current losses can be difficult to calculate and if there are parallel paths then there can sometimes be increased losses which can be unexpected. The paper addresses these winding losses in a brushless permanent magnet machine with 18 slots, 16 poles and a spoke type rare earth magnet rotor. The winding has coils that are one pitch. Different simulation scenarios are investigated to illustrate the even when the windings are in slots they can still experience increased ac copper losses when rotating at high speed. High speed machines often have few series turns because of the high rate of change of flux linkage so they can have many parallel turns or strands in hand. Simulations are carried out at 12 000 r/min then some simulations are run at 4000 r/min for completeness. The simulations are run in a 2-D finite-element analysis environment. © 1965-2012 IEEE.	en_US
dc.relation.ispartof	IEEE Transactions on Magnetics	en_US
dc.relation.isbasedon	10.1109/TMAG.2013.2247382	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	Proximity losses in the windings of high speed brushless permanent magnet AC motors with single tooth windings and parallel paths	en_US
dc.type	Journal Article
utslib.citation.volume	7	en_US
utslib.citation.volume	49	en_US
utslib.for	090699 Electrical and Electronic Engineering not elsewhere classified	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access
pubs.issue	7	en_US
pubs.publication-status	Published	en_US
pubs.volume	49	en_US

Abstract:

Proximity and additional eddy-current losses can be difficult to calculate and if there are parallel paths then there can sometimes be increased losses which can be unexpected. The paper addresses these winding losses in a brushless permanent magnet machine with 18 slots, 16 poles and a spoke type rare earth magnet rotor. The winding has coils that are one pitch. Different simulation scenarios are investigated to illustrate the even when the windings are in slots they can still experience increased ac copper losses when rotating at high speed. High speed machines often have few series turns because of the high rate of change of flux linkage so they can have many parallel turns or strands in hand. Simulations are carried out at 12 000 r/min then some simulations are run at 4000 r/min for completeness. The simulations are run in a 2-D finite-element analysis environment. © 1965-2012 IEEE.

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http://hdl.handle.net/10453/27221