NDLI: Analysis of the eccentricity in a low-speed slotless permanent-magnet wind generator

Content Provider	IEEE Xplore Digital Library
Author	Kallaste, A. Belahcen, A. Kilk, A. Vaimann, T.
Copyright Year	2012
Description	Author affiliation: Department of Electrical Engineering, Aalto University, P.O. Box 13000, 0076 Aalto, Finland (Belahcen, A.) \|\| Department of Fundamentals of Electrical Engineering and Electrical Machines, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia (Kallaste, A.; Kilk, A.; Vaimann, T.)
Abstract	This paper presents the analytical analysis of different eccentricities in the rotor of a novel slotless wind power generator. The analytical expressions for the air gap eccentricity have been derived and the effects of these eccentricities on the air gap flux density, the resultant unbalanced magnetic pull and the induced emf are investigated. The analysis shows a strong pull in the case of static eccentricity, which is not seen when the case of elliptic eccentricity for example. The analysis shows also that the induced emf per coil can vary very much but due to the series connection of the coil per phase emf is uniform but has higher rms value than in the case of healthy machine. The analytical equations are verified for the case of healthy machine on a constructed laboratory prototype.
Starting Page	1
Ending Page	6
File Size	338285
Page Count	6
File Format	PDF
ISBN	9781467319805
e-ISBN	9781467319799
e-ISBN	9781467319782
DOI	10.1109/PQ.2012.6256199
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-11
Publisher Place	Estonia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils permanent magnet Magnetic flux density wind generator Eccentricity Air gaps Force Rotors Stators slotless generator Generators
Content Type	Text
Resource Type	Article

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