EM_SPMSM_FL_010

Summary Validation of current angle effect on magnetic force harmonics
Topology SPMSM
Models Subdomain models EM2.SPMSM
Outputs Airgap flux density harmonics
Geometry Permanent magnet synchronous machine
Winding NA
Command run_MANATEE(’EM_SPMSM_FL_010’)
See also

Objectives

The objective of this validation article is to investigate the effect of current angle (Id / Iq distribution) on Maxwell harmonic forces in a low-speed, high torque Surface Permanent Magnet Synchronous Machines for wind turbine applications.

Results

Effect of current angle on radial harmonic force f=2fs, r=4 obtained with MANATEE software
Effect of current angle on radial harmonic force f=2fs, r=4 obtained with MANATEE software

One can see that the harmonic effect of current angle obtained with MANATEE agrees well with [R1] calculations carried in FEA:

Effect of current angle on radial harmonic force f=2fs, r=4 obtained with FEA [R1]
Effect of current angle on radial harmonic force f=2fs, r=4 obtained with FEA [R1]

Some differences exist but MANATEE results are assumed to be more accurate as subdomain modeling technique does not suffer from meshing error. MANATEE calculation only takes a few seconds while full FEA calculations of [R1] take several hours due to low symmetry of the machine.

References

[R1] Valavi, M., Nysveen, A., & Nilssen, R. (2014). Effects of loading on radial magnetic forces in low-speed permanent magnet machine with concentrated windings. Proceedings - 2014 International Conference on Electrical Machines, ICEM 2014, 51(6), 1128–1132. http://doi.org/10.1109/ICELMACH.2014.6960323

Next