Torque ripple reduction in interior permanent magnet synchronous machines using stators with odd number of slots per pole pair

dc.contributor.authorHan, S.
dc.contributor.authorJahns, T.
dc.contributor.authorSoong, W.
dc.contributor.authorGuven, M.
dc.contributor.authorIllindala, M.
dc.date.issued2010
dc.description.abstractThis paper develops analytical principles for torque ripple reduction in interior permanent magnet (IPM) synchronous machines. The significance of slot harmonics and the benefits of stators with odd number of slots per pole pair are highlighted. Based on these valuable analytical insights, this paper proposes coordination of the selection of stators with odd number of slots per pole pair and IPM rotors with multiple layers of flux barriers in order to reduce torque ripple. The effectiveness of using stators with odd number of slots per pole pair in reducing torque ripple is validated by applying a finite-element-based Monte Carlo optimization method to four IPM machine topologies, which are combinations of two stator topologies (even or odd number of slots per pole pair) and two IPM rotor topologies (one- or two-layer). It is demonstrated that the torque ripple can be reduced to less than 5% by selecting a stator with an odd number of slots per pole pair and the IPM rotor with optimized barrier configurations, without using stator/rotor skewing or rotor pole shaping.
dc.description.statementofresponsibilitySeok-Hee Han, Thomas M. Jahns, Wen L. Soong, Mustafa K. Güven and Mahesh S. Illindala
dc.identifier.citationIEEE Transactions on Energy Conversion, 2010; 25(1):118-127
dc.identifier.doi10.1109/TEC.2009.2033196
dc.identifier.issn0885-8969
dc.identifier.orcidSoong, W. [0000-0003-0734-7608]
dc.identifier.urihttp://hdl.handle.net/2440/61258
dc.language.isoen
dc.publisherIEEE-Inst Electrical Electronics Engineers Inc
dc.rightsCopyright status unknown
dc.source.urihttps://doi.org/10.1109/tec.2009.2033196
dc.subjectInterior permanent magnet (IPM) synchronous machines
dc.subjectodd number of stator slots per pole pair
dc.subjectstator slot harmonics
dc.subjecttorque ripple
dc.titleTorque ripple reduction in interior permanent magnet synchronous machines using stators with odd number of slots per pole pair
dc.typeJournal article
pubs.publication-statusPublished

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