Analytical Prediction of Eddy-Current Loss in Armature Windings of Permanent Magnet Brushless AC Machines

Amara, Yacine; Reghem, P.; Barakat, Georges

doi:10.1109/tmag.2010.2046885

Cited by 75 publications

(27 citation statements)

References 7 publications

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“…Hence, the resultant eddy current density Je in the conductor due to eddy current effect [1] can be expressed as shown in equation (3.2)…”

Section: Proximity Losses Evaluationmentioning

confidence: 99%

“…where, C is a time dependent constant introduced in order to ensure that the total current flowing through each conductor is equal to the source current [1], The power over a fundamental electrical period in a conductor can thus be obtained by …”

Section: Proximity Losses Evaluationmentioning

confidence: 99%

“…Here, it is worth highlighting that although the application of Litz wire/ multi-stranded bundle conductor significantly limits the effects of eddy current losses due to skin effect [1,2], the winding eddy losses due to the proximity effect still persists. In addition direct current (DC) winding losses also increase due to the poor fill factor of the Litz wire/ multi-stranded bundle conductors.…”

Section: Introductionmentioning

confidence: 99%

“…Alternative analytical methods [1,3,5,7] are also proposed to predict proximity losses within acceptable accuracy and less computation time. But, the influence of the number of strands and the strand cross-sectional area of the Litz/ multi-stranded conductor is not reported.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and analysis of eddy current losses in permanent magnet machines with multi-stranded bundle conductors

Arumugam

Dusek

Mezani

et al. 2016

Mathematics and Computers in Simulation

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. (2015) Modeling and analysis of eddy current losses in permanent magnet machines with multi-stranded bundle conductors. Mathematics and Computers in Simulation, Access from the University of Nottingham repository: http://eprints.nottingham.ac.uk/36143/1/Modelling%20and%20analysis%20of%20eddy %20current%20losses%20in%20permanent%20magnet%20machines%20with%20multi-stranded%20bundle%20conductors.pdf The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. AbstractThis paper investigates the influence of eddy current losses in multi-stranded bundle conductors employed in outrunner permanent magnet machines, by adopting an analytical model. The analytical model is based on a sub-domain field model that solves the two-dimensional magnetostatic problem using the separation of variables technique for each of the non-magnetically permeable machine sub-domains: PM, airgap and slots. The validity and accuracy of the proposed model is verified using finite element analysis and then used to investigate the eddy current losses. The machine considered for the analysis has 36 slots and 42-poles previously designed for aircraft taxiing. The influence of the number of turns and the conductor cross-sectional area are investigated. It is shown that efficiency can be improved considerably by the choice of multi-stranded bundle conductors.

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“…Hence, the resultant eddy current density Je in the conductor due to eddy current effect [1] can be expressed as shown in equation (3.2)…”

Section: Proximity Losses Evaluationmentioning

confidence: 99%

Section: Proximity Losses Evaluationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling and analysis of eddy current losses in permanent magnet machines with multi-stranded bundle conductors

Arumugam

Dusek

Mezani

et al. 2016

Mathematics and Computers in Simulation

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“…In addition to the value of the ac loss, the distribution of the overall copper losses in the stator winding is of interest particularly if coupled-thermal electromagnetic design optimization is desired. 2,3 In a broad categorization, the popular methods for analysis of eddy current losses in PM machines rely on analytical models as in, [4][5]6,7,8,9,10,11,12 numerical finite element/difference analysis as in, [13][14]15,16 or rely on combined analytical-FE-experimental procedures as in. [17][18]19 The analytical models lack the desired accuracy under magnetic core saturation and are not applicable to complex geometry without compromising further the accuracy.…”

Section: Introductionmentioning

confidence: 99%

A computationally efficient method for calculation of strand eddy current losses in electric machines

Fatemi

Ionel

Demerdash

et al. 2016

2016 IEEE Energy Conversion Congress and Exposition (ECCE)

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Abstract:In this paper, a fast finite element (FE)-based method for the calculation of eddy current losses in the stator windings of randomly wound electric machines with a focus on fractional slot concentrated winding NOT THE PUBLISHED VERSION; this is the author's final, peer-reviewed manuscript. The published version may be accessed by following the link in the citation at the bottom of the page.

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Analytical calculation of open-circuit magnetic field distribution of slotless brushless PM machines

Rahideh

Korakianitis

2013

International Journal of Electrical Power & Energy Systems

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Analytical Prediction of Eddy-Current Loss in Armature Windings of Permanent Magnet Brushless AC Machines

Cited by 75 publications

References 7 publications

Modeling and analysis of eddy current losses in permanent magnet machines with multi-stranded bundle conductors

Modeling and analysis of eddy current losses in permanent magnet machines with multi-stranded bundle conductors

A computationally efficient method for calculation of strand eddy current losses in electric machines

Analytical calculation of open-circuit magnetic field distribution of slotless brushless PM machines

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