A1 Journal article (refereed), original research

Model-Based Hysteresis Loss Assessment in PMSMs with Ferrite Magnets

Publication Details
Authors: Egorov Dmitry, Petrov Ilya, Link Joosep, Stern Raivo, Pyrhönen Juha
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Publication year: 2018
Language: English
Related Journal or Series Information: IEEE Transactions on Industrial Electronics
Volume number: 65
Issue number: 1
Start page: 179
End page: 188
Number of pages: 10
ISSN: 0278-0046
eISSN: 1557-9948
JUFO-Level of this publication: 3
Open Access: Not an Open Access publication


Hysteresis losses in ferrite Permanent Magnets (PMs) of a
Rotor-Surface-Magnet (RSM) Permanent Magnet Synchronous Machine (PMSM)
were studied by means of Vibrating Sample Magnetometer (VSM)
measurements, updated static History Dependent Hysteresis Model (HDHM)
and Finite Element Analysis (FEA). Open magnetic circuit VSM measurement
results were applied to determine the magnet intrinsic properties. The
HDHM developed originally for electrical steel hysteresis modelling is
adopted for ferrite PM material. FEA-based results for magnetic field
strength in PMs of a Tooth Coil Winding (TCW) RSM PMSM under ideal
sinusoidal and frequency converter supplies were used as input data for
the HDHM and the hysteresis losses were calculated in the machine’s
magnets. Differently from NdFeB and SmCo PMs ferrite PMs do not seem to
demonstrate significant hysteresis behavior. It was found that the
hysteresis loss could be neglected in ferrite PMs in most PMSM designs
if the magnet is fully polarized.

Last updated on 2019-11-01 at 11:03