A1 Journal article (refereed), original research

Design Aspects of High-Speed Electrical Machines with Active Magnetic Bearings for Compressor Applications

Open Access publication

Publication Details
Authors: Uzhegov Nikita, Smirnov Alexander, Park Cheol Hoon, Ahn Ji Hun, Heikkinen Janne, Pyrhönen Juha
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Publication year: 2017
Language: English
Related Journal or Series Information: IEEE Transactions on Industrial Electronics
Issue number: 99
Start page: 1
End page: 10
Number of pages: 10
ISSN: 0278-0046
eISSN: 1557-9948
JUFO-Level of this publication: 3
Open Access: Open Access publication


Two-stage oil-free centrifugal air compressors can bring significant advantages and open new market opportunities for compressor manufacturers. One of the core technologies behind this compressor type is the high-speed (HS) electrical machine supported by active magnetic bearings (AMBs). In this paper, the requirements set by the compressor on the electrical machine design are presented. The design solutions aimed to satisfy these requirements are discussed. Two case studies illustrate possible design approaches for the target application with examples of a 120 kW, 60 000 rpm induction machine with a solid rotor and a 225 kW, 50 000 rpm permanent magnet synchronous machine (PMSM) with a full cylindrical magnet. The system design and simulation results are confirmed by measurements of a PMSM prototype.

Last updated on 2018-19-10 at 07:55