Reduced basis finite element modelling of electrical machines with multi-conductor windings

Antti Lehikoinen, Antero Arkkio, Anouar Belahcen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)

Abstract

Finite element analysis of electrical machines with multi-conductor windings can be computationally costly. This paper proposes a solution to this problem, using a reduced basis approach. The field-circuit problem is first solved in a single slot only, with a set of different boundary conditions. These pre-computed solutions are then used as shape functions to approximate the solution in all slots of the full problem. A polynomial interpolation method is also proposed for coupling the slot domains with the rest of the geometry, even if the geometries or meshes do not fully conform on the boundary. The method is evaluated on several test problems. According to the simulations, accurate solutions are obtained. Furthermore, a speed-up factor of 30 is observed when analysing a six-slot phase belt of a high-speed induction machine.

Original languageEnglish
Title of host publicationProceedings of the 2016 22nd International Conference on Electrical Machines, ICEM 2016
PublisherIEEE
Pages2796-2802
Number of pages7
ISBN (Electronic)9781509025381
DOIs
Publication statusPublished - 2 Nov 2016
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Electrical Machines - Lausanne, Switzerland
Duration: 4 Sep 20167 Sep 2016
Conference number: 22
http://www.icem.cc/2016/

Conference

ConferenceInternational Conference on Electrical Machines
Abbreviated titleICEM
CountrySwitzerland
CityLausanne
Period04/09/201607/09/2016
Internet address

Keywords

  • eddy currents
  • Finite element analysis
  • proximity effects
  • reduced order systems

Fingerprint Dive into the research topics of 'Reduced basis finite element modelling of electrical machines with multi-conductor windings'. Together they form a unique fingerprint.

Cite this