Rotor Shaping Method for Torque Ripple Mitigation in Variable Flux Reluctance Machines
In this paper, four rotor shaping methods, i.e., eccentric circular, inverse cosine, inverse cosine with third harmonic, and multi-step shaping methods, are developed and compared for torque ripple mitigation in variable flux reluctance machines (VFRMs). By using a 6-stator-pole/7-rotor-pole (6/7) V...
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Veröffentlicht in: | IEEE transactions on energy conversion 2018-09, Vol.33 (3), p.1579-1589 |
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creator | Huang, L. R. Feng, J. H. Guo, S. Y. Li, Y. F. Shi, J. X. Zhu, Z. Q. |
description | In this paper, four rotor shaping methods, i.e., eccentric circular, inverse cosine, inverse cosine with third harmonic, and multi-step shaping methods, are developed and compared for torque ripple mitigation in variable flux reluctance machines (VFRMs). By using a 6-stator-pole/7-rotor-pole (6/7) VFRM as an example, the design criterions and capabilities of these four methods are illustrated. It is found that all the rotor shaping methods are capable of torque ripple mitigation and applicable to all the VFRMs except those with 6 k /(6 i ± 2) k ( k , i = 1, 2, 3...) stator/rotor pole combinations. Moreover, the inverse cosine with third harmonic and multi-step shaping methods are found to have the best performance. They are able to reduce the torque ripple by 90% at a cost of only 3% torque density reduction. A 6/7 VFRM with both conventional and shaped rotors is prototyped and tested for verification. |
doi_str_mv | 10.1109/TEC.2018.2829493 |
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R. ; Feng, J. H. ; Guo, S. Y. ; Li, Y. F. ; Shi, J. X. ; Zhu, Z. Q.</creator><creatorcontrib>Huang, L. R. ; Feng, J. H. ; Guo, S. Y. ; Li, Y. F. ; Shi, J. X. ; Zhu, Z. Q.</creatorcontrib><description>In this paper, four rotor shaping methods, i.e., eccentric circular, inverse cosine, inverse cosine with third harmonic, and multi-step shaping methods, are developed and compared for torque ripple mitigation in variable flux reluctance machines (VFRMs). By using a 6-stator-pole/7-rotor-pole (6/7) VFRM as an example, the design criterions and capabilities of these four methods are illustrated. It is found that all the rotor shaping methods are capable of torque ripple mitigation and applicable to all the VFRMs except those with 6 k /(6 i ± 2) k ( k , i = 1, 2, 3...) stator/rotor pole combinations. Moreover, the inverse cosine with third harmonic and multi-step shaping methods are found to have the best performance. They are able to reduce the torque ripple by 90% at a cost of only 3% torque density reduction. A 6/7 VFRM with both conventional and shaped rotors is prototyped and tested for verification.</description><identifier>ISSN: 0885-8969</identifier><identifier>EISSN: 1558-0059</identifier><identifier>DOI: 10.1109/TEC.2018.2829493</identifier><identifier>CODEN: ITCNE4</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Average torque ; Harmonic analysis ; Product design ; Reluctance machinery ; Reluctance machines ; rotor shaping ; Rotors ; Stator windings ; Stators ; Torque ; Torque measurement ; torque ripple ; Vacuum cleaners ; variable flux reluctance machine (VFRM)</subject><ispartof>IEEE transactions on energy conversion, 2018-09, Vol.33 (3), p.1579-1589</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c333t-6b620bfa36ddded8bcfd62472510ac37ba0adbc15668c0281d33eccd41cb31fe3</citedby><cites>FETCH-LOGICAL-c333t-6b620bfa36ddded8bcfd62472510ac37ba0adbc15668c0281d33eccd41cb31fe3</cites><orcidid>0000-0002-2180-1937 ; 0000-0001-7175-3307</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/8345700$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/8345700$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Huang, L. R.</creatorcontrib><creatorcontrib>Feng, J. H.</creatorcontrib><creatorcontrib>Guo, S. Y.</creatorcontrib><creatorcontrib>Li, Y. F.</creatorcontrib><creatorcontrib>Shi, J. X.</creatorcontrib><creatorcontrib>Zhu, Z. Q.</creatorcontrib><title>Rotor Shaping Method for Torque Ripple Mitigation in Variable Flux Reluctance Machines</title><title>IEEE transactions on energy conversion</title><addtitle>TEC</addtitle><description>In this paper, four rotor shaping methods, i.e., eccentric circular, inverse cosine, inverse cosine with third harmonic, and multi-step shaping methods, are developed and compared for torque ripple mitigation in variable flux reluctance machines (VFRMs). By using a 6-stator-pole/7-rotor-pole (6/7) VFRM as an example, the design criterions and capabilities of these four methods are illustrated. It is found that all the rotor shaping methods are capable of torque ripple mitigation and applicable to all the VFRMs except those with 6 k /(6 i ± 2) k ( k , i = 1, 2, 3...) stator/rotor pole combinations. Moreover, the inverse cosine with third harmonic and multi-step shaping methods are found to have the best performance. They are able to reduce the torque ripple by 90% at a cost of only 3% torque density reduction. A 6/7 VFRM with both conventional and shaped rotors is prototyped and tested for verification.</description><subject>Average torque</subject><subject>Harmonic analysis</subject><subject>Product design</subject><subject>Reluctance machinery</subject><subject>Reluctance machines</subject><subject>rotor shaping</subject><subject>Rotors</subject><subject>Stator windings</subject><subject>Stators</subject><subject>Torque</subject><subject>Torque measurement</subject><subject>torque ripple</subject><subject>Vacuum cleaners</subject><subject>variable flux reluctance machine (VFRM)</subject><issn>0885-8969</issn><issn>1558-0059</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kMFLwzAUh4MoOKd3wUvAc-dL0qTpUcamwoYw564hTdItozY17UD_ezM2PD348f3ee3wI3ROYEALl03o2nVAgckIlLfOSXaAR4VxmALy8RCOQkmeyFOU1uun7PQDJOSUjtFmFIUT8sdOdb7d46YZdsLhO0TrE74PDK991jcNLP_itHnxosW_xRkevqxTPm8MPXrnmYAbdmoRps_Ot62_RVa2b3t2d5xh9zmfr6Wu2eH95mz4vMsMYGzJRCQpVrZmw1jorK1NbQfOCcgLasKLSoG1lCBdCGqCSWMacMTYnpmKkdmyMHk97uxjSt_2g9uEQ23RSUUIKwkGIIlFwokwMfR9drbrov3T8VQTU0Z5K9tTRnjrbS5WHU8U75_5xyXJeALA_nW9r2w</recordid><startdate>201809</startdate><enddate>201809</enddate><creator>Huang, L. R.</creator><creator>Feng, J. H.</creator><creator>Guo, S. Y.</creator><creator>Li, Y. F.</creator><creator>Shi, J. X.</creator><creator>Zhu, Z. Q.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-2180-1937</orcidid><orcidid>https://orcid.org/0000-0001-7175-3307</orcidid></search><sort><creationdate>201809</creationdate><title>Rotor Shaping Method for Torque Ripple Mitigation in Variable Flux Reluctance Machines</title><author>Huang, L. R. ; Feng, J. H. ; Guo, S. Y. ; Li, Y. F. ; Shi, J. X. ; Zhu, Z. Q.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c333t-6b620bfa36ddded8bcfd62472510ac37ba0adbc15668c0281d33eccd41cb31fe3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Average torque</topic><topic>Harmonic analysis</topic><topic>Product design</topic><topic>Reluctance machinery</topic><topic>Reluctance machines</topic><topic>rotor shaping</topic><topic>Rotors</topic><topic>Stator windings</topic><topic>Stators</topic><topic>Torque</topic><topic>Torque measurement</topic><topic>torque ripple</topic><topic>Vacuum cleaners</topic><topic>variable flux reluctance machine (VFRM)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huang, L. R.</creatorcontrib><creatorcontrib>Feng, J. H.</creatorcontrib><creatorcontrib>Guo, S. Y.</creatorcontrib><creatorcontrib>Li, Y. F.</creatorcontrib><creatorcontrib>Shi, J. X.</creatorcontrib><creatorcontrib>Zhu, Z. Q.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on energy conversion</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Huang, L. R.</au><au>Feng, J. H.</au><au>Guo, S. Y.</au><au>Li, Y. F.</au><au>Shi, J. X.</au><au>Zhu, Z. Q.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rotor Shaping Method for Torque Ripple Mitigation in Variable Flux Reluctance Machines</atitle><jtitle>IEEE transactions on energy conversion</jtitle><stitle>TEC</stitle><date>2018-09</date><risdate>2018</risdate><volume>33</volume><issue>3</issue><spage>1579</spage><epage>1589</epage><pages>1579-1589</pages><issn>0885-8969</issn><eissn>1558-0059</eissn><coden>ITCNE4</coden><abstract>In this paper, four rotor shaping methods, i.e., eccentric circular, inverse cosine, inverse cosine with third harmonic, and multi-step shaping methods, are developed and compared for torque ripple mitigation in variable flux reluctance machines (VFRMs). By using a 6-stator-pole/7-rotor-pole (6/7) VFRM as an example, the design criterions and capabilities of these four methods are illustrated. It is found that all the rotor shaping methods are capable of torque ripple mitigation and applicable to all the VFRMs except those with 6 k /(6 i ± 2) k ( k , i = 1, 2, 3...) stator/rotor pole combinations. Moreover, the inverse cosine with third harmonic and multi-step shaping methods are found to have the best performance. They are able to reduce the torque ripple by 90% at a cost of only 3% torque density reduction. A 6/7 VFRM with both conventional and shaped rotors is prototyped and tested for verification.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TEC.2018.2829493</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-2180-1937</orcidid><orcidid>https://orcid.org/0000-0001-7175-3307</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Average torque Harmonic analysis Product design Reluctance machinery Reluctance machines rotor shaping Rotors Stator windings Stators Torque Torque measurement torque ripple Vacuum cleaners variable flux reluctance machine (VFRM) |
title | Rotor Shaping Method for Torque Ripple Mitigation in Variable Flux Reluctance Machines |
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