NDLI: Time-Harmonic Induction-Machine Model Including Hysteresis and Eddy Currents in Steel Laminations

Content Provider	IEEE Xplore Digital Library
Author	Pippuri, J. Arkkio, A.
Copyright Year	1965
Abstract	We have studied electromagnetic losses of a frequency-converter-fed cage-induction motor by using a numerical machine model that includes eddy-current and hysteresis phenomena in electrical steel sheets. We used the model to solve the two-dimensional (2-D) time-harmonic field and winding equations of a cage-induction machine, utilizing a finite-element method and phasor variables. We used complex reluctivity to couple the hysteresis and eddy currents in the sheets with the 2-D analysis. The model modifies the absolute value of the reluctivity according to a one-dimensional (1-D) eddy-current solution developed in the lamination thickness. To define the argument of the reluctivity, we applied both the 1-D field solution and measured hysteresis data. We compared computations of additional electromagnetic losses in a 37-kW test machine due to the higher harmonics of a frequency-converter supply with experimental results. The agreement is found to be reasonable.
Sponsorship	IEEE Magnetics Society
Starting Page	2981
Ending Page	2989
Page Count	9
File Size	921123
File Format	PDF
ISSN	00189464
Volume Number	45
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Eddy currents Steel Lamination Magnetic losses Frequency Hysteresis motors Numerical models Electromagnetic modeling Two dimensional displays Machine windings losses finite-element methods induction motors
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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