A1 Journal article (refereed), original research

Influence of Magnetic and Nonmagnetic Layers in an Axially Laminated Anisotropic Rotor of a High-Speed Synchronous Reluctance Motor Including Manufacturing Aspects

Open Access publication

Publication Details
Authors: Abramenko Valerii, Nerg Janne, Petrov Ilya, Pyrhönen Juha
Publisher: Institute of Electrical and Electronics Engineers (IEEE): OAJ / IEEE
Publication year: 2020
Language: English
Related Journal or Series Information: IEEE Access
Volume number: 8
Start page: 117377
End page: 117389
Number of pages: 13
eISSN: 2169-3536
JUFO-Level of this publication: 2
Open Access: Open Access publication


The impact of the thickness of the magnetic and nonmagnetic layers in an axially laminated anisotropic (ALA) rotor in a synchronous reluctance motor (SynRM) aimed at high-speed applications was studied. Considering possible manufacturing issues, the layers are desired to be thick rather than thin. At the same time, the layer thickness is related to the electromagnetic capabilities of the ALASynRM. In the study, a 12 kW
ALASynRM was considered. As a reference, a 12 kW IM with a smooth solid
rotor with copper end rings was used for comparison with the designed
ALASynRM. The manufacturing procedures of an ALA rotor with certain
materials were verified in practice. Strength tests of the samples were implemented showing the suitability of the selected materials for application in the prototype. In the electromagnetic design, the thickness of the ALA rotor layers has shown to have a significant impact on the rotor eddy current losses. The stator iron losses and the winding Joule losses also depend on the rotor design. Torque ripple is considerably affected by the thickness of the rotor layers and their position in relation to the stator slots.

Last updated on 2020-02-10 at 09:32