NDLI: Impact of magnetic nonlinearities and cross-coupling effects on properties of radial active magnetic bearings

Content Provider	IEEE Xplore Digital Library
Author	Polajzer, B. Stumberger, G. Ritonja, J. Tezak, O. Dolinar, D. Hameyer, K.
Copyright Year	1965
Abstract	The impact of magnetic nonlinearities and cross-coupling effects on the properties of the discussed radial active magnetic bearings (AMBs) is evaluated in the entire operating range. The characteristics of flux linkages and radial force are all determined by finite element computation, while the current and position dependent partial derivatives of the flux linkages are calculated by analytical derivations of the continuous approximation functions. Calculated current and position-dependent partial derivatives, as well as the radial force characteristics are incorporated into the proposed dynamic AMB model. The results presented show that the magnetic nonlinearities and cross-coupling effects can change the electromotive forces and the radial force considerably. These disturbing effects have been determined and can be incorporated into the real-time realization of nonlinear control in order to achieve cross-coupling compensations.
Sponsorship	IEEE Magnetics Society
Starting Page	798
Ending Page	801
Page Count	4
File Size	289376
File Format	PDF
ISSN	00189464
Volume Number	40
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic levitation Magnetic properties Magnetic flux Finite element methods Force measurement Magnetic analysis Electromagnetic coupling Rotors Electromagnets Nonlinear dynamical systems
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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