NDLI: Analysis and Experimental Evaluation of Harmonic Leakage Inductance for Polyphase PM Machines Having Close Slot and Pole Combinations

Content Provider	IEEE Xplore Digital Library
Author	Fan Wu Ping Zheng Luming Cheng Chengyu Zhou
Copyright Year	1965
Abstract	For fractional-slot concentrated winding permanent-magnet (PM) machines having close slot (Q) and pole (p) combinations, harmonic leakage inductance could be several times higher than magnetizing inductance, resulting in a low power factor and a small characteristic current. This paper tends to extend the investigation of harmonic leakage inductance to polyphase PM machines, which have been receiving great attention in safety-critical applications. The impact of phase belt and winding layer on the winding distribution factor, which is usually neglected in previous work, has been investigated. The inductance index as well as a completed calculation flowchart has been introduced, in order to offer a full picture of harmonic leakage and its impact on winding inductance. Five-phase and six-phase schemes with different slot/pole combinations have been investigated as examples for odd and even phase number machines, respectively. Furthermore, several prototype machines, including three-phase 12-slot/10-pole and six-phase 24-slot/22-pole single-layer and double-layer machines, were fabricated, and experimental verification has been conducted.
Sponsorship	IEEE Magnetics Society
Starting Page	1
Ending Page	4
Page Count	4
File Size	1635326
File Format	PDF
ISSN	00189464
Volume Number	51
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Permanent magnet machines Harmonic analysis Inductance Power capacitors WIndings multiphase machine fractional-slot concentrated winding harmonic leakage permanent magnet machine multiphase permanent magnet (PM) machine Fractional-slot concentrated winding (FSCW)
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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