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Design of slit width to improve space harmonic distribution in a slit stator motor


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Title: Design of slit width to improve space harmonic distribution in a slit stator motor
Authors: Yokoi, Yuichi / Hashizume, Ryuta / Higuchi, Tsuyoshi
Issue Date: 26-Mar-2019
Publisher: Institution of Engineering and Technology
Citation: IET Electric Power Applications, 13(8), pp.1125-1130; 2019
Abstract: This paper designs the width of slit-like flux barriers to improve the space harmonic distribution of the air-gap flux density in a slit stator motor. The slit stator motor has slit-like flux barriers at wound teeth of the stator. The stator design can adjust the space harmonic distribution with the slit width. Space harmonic distributions govern torque and losses in motors. For this reason,the dependence of the space harmonic distribution on the slit width should be clarified to design slit stator motors. The dependence is investigated through a theoretical calculation based on a magnetic circuit model and a finite element method analysis. These methods show that a space harmonic producing the drive torque is maximised at a slit width and other dominant detrimental space harmonics are decreased with the increase of the slit width. The improved space harmonic distribution is verified by performing an experiment with a measuring rotor.
URI: http://hdl.handle.net/10069/39420
ISSN: 17518660
DOI: 10.1049/iet-epa.2018.5289
Rights: © The Institution of Engineering and Technology 2019
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/39420

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