University of Oulu

E. Kurvinen, J. Narsakka, T. Choudhury, R. P. Jastrzebski and J. Sopanen, "Active Magnetic Bearing Positioning in the Conceptual Design Phase of a High-Speed Electric Machine," 2022 International Conference on Electrical Machines (ICEM), 2022, pp. 2047-2053, doi: 10.1109/ICEM51905.2022.9910644.

Active magnetic bearing positioning in the conceptual design phase of a high-speed electric machine

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Author: Kurvinen, Emil1; Narsakka, Juuso2; Choudhury, Tuhin2;
Organizations: 1Materials and Mechanical Engineering, University of Oulu, Oulu, Finland
2Department of Mechanical Engineering, Lappeenranta-Lahti University of Technology LUT, Lappeenranta, Finland
3Department of Electrical Engineering, Lappeenranta-Lahti University of Technology LUT, Lappeenranta, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.8 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2022
Publish Date: 2022-10-17


The optimization of high-speed active magnetic bearing rotor layout concerning the effect of external disturbance is studied. The centrifugal loads and related strain forces in the HS rotors limit the maximum rotational speed and AMB capacity, bandwidth, and location limit control of dynamics. Additionally, external synchronous disturbances, i.e., unbalance forces, rotor runout, application forces from the impeller, and static forces cause adverse effects on active control and pose limitations. Therefore, to achieve a sub-critical rotor, the dimensions of electric machine components, such as bearings, seals, and impellers affect each other and have to be constrained. The proposed method examines the effect of disturbances and locations and resulting dynamic limitations at the conceptual design phase. This enables the design of the AMBs and component layout to the application demands. The method uses maximum singular values to examine the effects of disturbances on bearing forces and rotor displacements at key locations.

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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: 2047 - 2053
DOI: 10.1109/icem51905.2022.9910644
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: 214 Mechanical engineering
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