Reduced Basis Finite Element Modeling of Electrical Machines with Multiconductor Windings
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Journal Title
Journal ISSN
Volume Title
School of Electrical Engineering |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2017
Major/Subject
Mcode
Degree programme
Language
en
Pages
4252-4259
Series
Volume 53, Issue 5
Abstract
Finite element analysis of electrical machines withmulti-conductor windings can be computationally costly. Thispaper proposes a solution to this problem, using a reducedbasis approach. The field-circuit problem is first solved in asingle slot only, with a set of different boundary conditions.These pre-computed solutions are then used as shape functionsto approximate the solution in all slots of the full problem. Apolynomial interpolation method is also proposed for couplingthe slot domains with the rest of the geometry, even if thegeometries or meshes do not fully conform on the boundary.The method is evaluated on several test problems both inthe frequency- and time-domains. According to the simulations,accurate solutions are obtained, 54-90 times faster compared tothe established finite element approach.Description
Keywords
eddy currents, finite element analysis, reduced order systems
Other note
Citation
Lehikoinen, Antti & Arkkio, Antero & Belahcen, Anouar. 2017. Reduced Basis Finite Element Modeling of Electrical Machines with Multiconductor Windings. Volume 53, Issue 5. 4252-4259. ISSN 0093-9994 (printed). DOI: 10.1109/tia.2017.2696509.
