University of Oulu

A. Credo, E. Kurvinen, I. Petrov and J. Pyrhönen, "Investigation of Material Combinations for Axially-Laminated Synchronous Machine," 2022 International Conference on Electrical Machines (ICEM), 2022, pp. 814-820, doi: 10.1109/ICEM51905.2022.9910821.

Investigation of material combinations for axially-laminated synchronous machine

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Author: Credo, Andrea1; Kurvinen, Emil2; Petrov, Ilya3;
Organizations: 1Department of Industrial and Information Engineering and Economics, University of L’Aquila, L’Aquila, Italy
2Materials and Mechanical Engineering, University of Oulu, Oulu, Finland
3School of Energy Systems, Lappeenranta University of Technology, Lappeenranta, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.3 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2022
Publish Date: 2022-10-17


High-speed electric machines are special types of electric machines which aim for compact, direct-driven high-speed applications and highly efficient operation, especially, when gearbox can be avoided. Design of these types of machines is highly iterative combining multiphysics optimization and leads to custom types of machines which fulfill the application-specific requirements. Synchronous Reluctance Machines (Syn-RMs) might have an axially-laminated solid rotor structure, which combines magnetic and non-magnetic layers rigidly bonded to each other by vacuum brazing, hot isostatic pressing, soldering, explosion welding or even by additive manufacturing. In the study five non-magnetic materials and nine magnetic materials are cross compared and the results show clear differences in performance, efficiency and physical properties of the rotor when made of different material combinations, and thereby can suggest the best pairs when application-specific performance criteria are known. The study is carried out on a 12 kW machine with a maximum speed of 24000 rpm.

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Series: International Conference on Electrical Machines
ISSN: 2381-4802
ISSN-E: 2473-2087
ISSN-L: 2381-4802
ISBN: 978-1-6654-1432-6
ISBN Print: 978-1-6654-1433-3
Pages: 814 - 820
DOI: 10.1109/icem51905.2022.9910821
Host publication: 2022 international conference on electrical machines (ICEM)
Conference: International Conference on Electrical Machines
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
214 Mechanical engineering
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