NDLI: Winding Inductances of an Interior Permanent Magnet (IPM) Machine With Fractional Slot Concentrated Winding

Content Provider	IEEE Xplore Digital Library
Author	Dutta, R. Rahman, M.F. Chong, L.
Copyright Year	1965
Abstract	This paper investigates inductance characteristics of a novel 14 pole/18 slot, fractional-slot concentrated-winding (FSCW) IPM machine. The variations of the self and mutual inductances were calculated analytically and also obtained from the finite element model. These results were compared with experimentally measured values of the self and mutual inductances of the prototype machine. Study of the inductance characteristics reveals that both self and mutual inductances vary with rotor positions nonsinusoidally. Presence of harmonics in the magnetomotive force (MMF) is responsible for this nonsinusoidal variation of inductances. The conventional distributed winding machine does not have these harmonics. This paper analyses the contribution of these harmonics in the Ld and Lq parameters in a dq-model of the prototype FSCW machine constructed. The self and mutual inductances were represented by a Fourier series in the inductance matrix of the machine for dq-transformation. It was seen that the difference between d- and q-axis inductance is mainly contributed by the harmonic terms of the mutual inductance.
Sponsorship	IEEE Magnetics Society
Starting Page	4842
Ending Page	4849
Page Count	8
File Size	1469303
File Format	PDF
ISSN	00189464
Volume Number	48
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inductance Harmonic analysis Rotors Windings Power capacitors Magnetic flux Air gaps space harmonics Air-gap function finite element method (FEM) fractional-slot concentrated winding (FSCW) inductance harmonics interior permanent magnet (IPM) machine magnetomotive force (MMF) MMF harmonics mutual inductance self inductance
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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