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

Arumugam, Puvaneswaran; Dusek, Jiri; Mezani, Smail; Hamiti, Tahar; Gerada, C.

Authors

Puvaneswaran Arumugam

Jiri Dusek

Smail Mezani

Tahar Hamiti

C. Gerada



Abstract

This paper investigates the influence of eddy current losses in multi-stranded bundle conductors employed in out-runner 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.

Journal Article Type Article
Journal Mathematics and Computers in Simulation
Print ISSN 0378-4754
Electronic ISSN 0378-4754
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 130
APA6 Citation Arumugam, P., Dusek, J., Mezani, S., Hamiti, T., & Gerada, C. (in press). Modeling and analysis of eddy current losses in permanent magnet machines with multi-stranded bundle conductors. Mathematics and Computers in Simulation, 130, doi:10.1016/j.matcom.2015.10.010
DOI https://doi.org/10.1016/j.matcom.2015.10.010
Keywords AC Losses, Analytical, Proximity Losses, Permanent Magnet, Sub-domain Field Model
Publisher URL http://www.sciencedirect.com/science/article/pii/S0378475415002347
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0





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