Objective
| Topology | SPMSM |
|---|---|
| Model Types | Electromagnetic linear magnetostatic FEM EM3.PMSM Electromagnetic permeance / stator mmf model EM1.SPMSM |
| Quantities | Airgap radial and tangential armature flux density waveforms |
| Geometry | Internal rotor Open stator slots and semi-closed slots |
| Winding | Single layer non-overlapping windings with "alternate teeth wound" |
Machine
This validation simulates a machine that can be found in the article : L. J. Wu, Z. Q. Zhu, D. Staton, M. Popescu, and D. Hawkins, “Subdomain Model for Predicting Armature Reaction Field of Surface-Mounted Permanent-Magnet Machines Accounting for Tooth-Tips,” IEEE Trans. Magn., vol. 47, no. 4, pp. 812–822, 2011
This SPMSM (Surface Permanent Magnet Synchronous Machine) has 12 stator slots for 4 poles pairs (12s/8p). The airgap field computation is done by a permeance and mmf model (Magnetomotive Force) along the airgap.
Stator slots are filled with Single layer non-overlapping windings with "alternate teeth wound", creating armature field.
- Topology of machine SPMSM_004
- Manatee model for machine SPMSM_004
Results
The permeance and mmf model implemented on MANATEE is compared with the FEMM model in the figures below. (See the different Electromagnetic Modules).
- Radial airgap flux comparison (FEMM vs Permeance/mmf)
- Radial airgap flux comparison (FEMM vs Permeance/mmf)
This analytical model is accurate enough to enables a first design optimization of an SPMSM.
To see the air gap field compute by a semi-analytical subdomain model, click here.
