Abstract
This paper concerns the semi-analytical modeling of parasitic eddy current distributions and forces in electromagnetic devices. The harmonic, Fourier-based, model is extended to incorporate a position-dependent conductivity, and restrictions on the induced current density are added to model eddy currents in non-connected conducting elements. To model time-dependent behavior of eddy currents, multiple time harmonics can be incorporated in the solutions. The developed method is verified using the finite-element method for a wide range of frequencies. The model is applied to a coreless linear motor with electrically conducting cooling plates, and the parasitic force is analyzed.
| Original language | English |
|---|---|
| Article number | 829406 |
| Pages (from-to) | 1-6 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 53 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1 Nov 2017 |
| Event | 2017 IEEE International Magnetics Conference, INTERMAG 2017 - Convention Centre Dublin, Dublin, Ireland Duration: 24 Apr 2017 → 28 Apr 2017 Conference number: 2017 http://intermag2017.com/ |
Keywords
- Analytical modeling
- eddy current
- Fourier analysis
- permanent-magnet machines