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Abstract
Finite element (FE) analysis of electrical machines with multiconductor 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 precomputed 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 both in the frequency and time domains. According to the simulations, accurate solutions are obtained, 54-90 times faster as compared with the established FE approach.
Original language | English |
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Article number | 7907188 |
Pages (from-to) | 4252-4259 |
Number of pages | 8 |
Journal | IEEE Transactions on Industry Applications |
Volume | 53 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2017 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Eddy currents
- finite element (FE) analysis
- proximity effects
- reduced order systems
- time-domain homogenization
- permanent-magneet machines
- brushless AC machines
- eddy-current loss
- stator coils
- losses
- conductors
- frequency
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Dive into the research topics of 'Reduced Basis Finite Element Modeling of Electrical Machines with Multiconductor Windings'. Together they form a unique fingerprint.Projects
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ALEM: Additional Losses in Electrical Machines
Lehikoinen, A. (Project Member), Belahcen, A. (Project Member), Upadhaya, B. (Project Member), Osemwinyen, O. (Project Member), Aydin, U. (Project Member), Balasubramanian, A. (Project Member), Arkkio, A. (Principal investigator), Rasilo, P. (Project Member), Nair, D. (Project Member), Shah, S. (Project Member), Sundaria, R. (Project Member), Singh, D. (Project Member), Hemeida, A. (Project Member), Razzaq, M. (Project Member) & Rouhi, H. (Project Member)
01/03/2014 → 28/02/2019
Project: EU: ERC grants