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 language | English |
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| Title of host publication | Proceedings of the 2016 22nd International Conference on Electrical Machines, ICEM 2016 |
| Publisher | IEEE |
| Pages | 2796-2802 |
| Number of pages | 7 |
| ISBN (Electronic) | 9781509025381 |
| DOIs | |
| Publication status | Published - 2 Nov 2016 |
| MoE publication type | A4 Conference publication |
| Event | International Conference on Electrical Machines - Lausanne, Switzerland Duration: 4 Sept 2016 → 7 Sept 2016 Conference number: 22 http://www.icem.cc/2016/ |
Conference
| Conference | International Conference on Electrical Machines |
|---|---|
| Abbreviated title | ICEM |
| Country/Territory | Switzerland |
| City | Lausanne |
| Period | 04/09/2016 → 07/09/2016 |
| Internet address |
Keywords
- eddy currents
- Finite element analysis
- proximity effects
- reduced order systems