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Thermal modelling of a permanent magnet machine built using litz wire
Smartmotor AS.
Smartmotor AS.
Department of Electrical Machines, RWTH Aachen University, Germany.
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.ORCID iD: 0000-0002-6283-7661
2015 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper considers thermal modeling of a 2 MW permanent magnet machine designed and manufactured for marine applications. The main focus is placed on the winding made of the Litz wire, and a practical approach to model heat transfer is presented. The proposed thermal modeling method, named segment-layer, is compared to traditional thermal models used mainly for standard winding configurations. In order to evaluate the accuracy of the developed thermal model, both simulation and experimental results are presented. In the simulation study, the proposed and traditional modeling methods are compared to a detailed finite element model of the Litz wire. Temperature measurements are carried out on the 2 MW machine prototype and a good agreement between the measurements and corresponding thermal model results is achieved. The suggested method is user-friendly and enables both analytical and numerical modeling of the Litz wire. Also, the parameters that play an important role in the winding heat transfer, e.g. impregnation goodness, can be easily implemented in the model developed in this paper.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2015.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-166465DOI: 10.1109/ESARS.2015.7101462ISI: 000380445800048Scopus ID: 2-s2.0-84946218223OAI: oai:DiVA.org:kth-166465DiVA: diva2:811138
Conference
International Conference on Electrical Systems for Aircraft, Railway and Ship Propulsion (ESARS’15), 2015
Funder
StandUp
Note

QC 20160314

Available from: 2015-05-11 Created: 2015-05-11 Last updated: 2016-09-05Bibliographically approved

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Wallmark, Oskar

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
  • html
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  • asciidoc
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