{"id":"https://openalex.org/W3040228684","doi":"https://doi.org/10.1109/tie.2020.3005107","title":"Development and Analysis of an Outer Rotor Homopolar Inductor Machine for Flywheel Energy Storage System","display_name":"Development and Analysis of an Outer Rotor Homopolar Inductor Machine for Flywheel Energy Storage System","publication_year":2020,"publication_date":"2020-07-01","ids":{"openalex":"https://openalex.org/W3040228684","doi":"https://doi.org/10.1109/tie.2020.3005107","mag":"3040228684"},"language":"en","primary_location":{"id":"doi:10.1109/tie.2020.3005107","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tie.2020.3005107","pdf_url":null,"source":{"id":"https://openalex.org/S58031724","display_name":"IEEE Transactions on Industrial Electronics","issn_l":"0278-0046","issn":["0278-0046","1557-9948"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Industrial Electronics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5078089263","display_name":"Jiangtao Yang","orcid":"https://orcid.org/0000-0003-4257-2632"},"institutions":[{"id":"https://openalex.org/I16609230","display_name":"Hunan University","ror":"https://ror.org/05htk5m33","country_code":"CN","type":"education","lineage":["https://openalex.org/I16609230"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jiangtao Yang","raw_affiliation_strings":["College of Electrical and Information Engineering, Hunan University, Changsha, China"],"raw_orcid":"https://orcid.org/0000-0003-4257-2632","affiliations":[{"raw_affiliation_string":"College of Electrical and Information Engineering, Hunan University, Changsha, China","institution_ids":["https://openalex.org/I16609230"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085136469","display_name":"Caiyong Ye","orcid":"https://orcid.org/0000-0003-3111-0870"},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Caiyong Ye","raw_affiliation_strings":["School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, China"],"raw_orcid":"https://orcid.org/0000-0003-3111-0870","affiliations":[{"raw_affiliation_string":"School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, China","institution_ids":["https://openalex.org/I47720641"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5068705108","display_name":"Shoudao Huang","orcid":"https://orcid.org/0000-0002-6923-9605"},"institutions":[{"id":"https://openalex.org/I16609230","display_name":"Hunan University","ror":"https://ror.org/05htk5m33","country_code":"CN","type":"education","lineage":["https://openalex.org/I16609230"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shoudao Huang","raw_affiliation_strings":["College of Electrical and Information Engineering, Hunan University, Changsha, China"],"raw_orcid":"https://orcid.org/0000-0002-6923-9605","affiliations":[{"raw_affiliation_string":"College of Electrical and Information Engineering, Hunan University, Changsha, China","institution_ids":["https://openalex.org/I16609230"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5078089263"],"corresponding_institution_ids":["https://openalex.org/I16609230"],"apc_list":null,"apc_paid":null,"fwci":2.8089,"has_fulltext":false,"cited_by_count":36,"citation_normalized_percentile":{"value":0.9110585,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"68","issue":"8","first_page":"6504","last_page":"6515"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10278","display_name":"Electric Motor Design and Analysis","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10278","display_name":"Electric Motor Design and Analysis","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11602","display_name":"Magnetic Bearings and Levitation Dynamics","score":0.9983999729156494,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10223","display_name":"Microgrid Control and Optimization","score":0.9745000004768372,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/homopolar-motor","display_name":"Homopolar motor","score":0.9559544324874878},{"id":"https://openalex.org/keywords/flywheel","display_name":"Flywheel","score":0.8373287916183472},{"id":"https://openalex.org/keywords/flywheel-energy-storage","display_name":"Flywheel energy storage","score":0.738791286945343},{"id":"https://openalex.org/keywords/inductor","display_name":"Inductor","score":0.6794574856758118},{"id":"https://openalex.org/keywords/rotor","display_name":"Rotor (electric)","score":0.6051812171936035},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.5549589991569519},{"id":"https://openalex.org/keywords/torque","display_name":"Torque","score":0.5429345369338989},{"id":"https://openalex.org/keywords/counter-electromotive-force","display_name":"Counter-electromotive force","score":0.5394068956375122},{"id":"https://openalex.org/keywords/air-gap","display_name":"Air gap (plumbing)","score":0.5308892130851746},{"id":"https://openalex.org/keywords/power-density","display_name":"Power density","score":0.49076685309410095},{"id":"https://openalex.org/keywords/energy-storage","display_name":"Energy storage","score":0.4531380236148834},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.4422702193260193},{"id":"https://openalex.org/keywords/automotive-engineering","display_name":"Automotive engineering","score":0.430949330329895},{"id":"https://openalex.org/keywords/magnetic-circuit","display_name":"Magnetic circuit","score":0.4262138605117798},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.4201206862926483},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.41725778579711914},{"id":"https://openalex.org/keywords/finite-element-method","display_name":"Finite element method","score":0.41379937529563904},{"id":"https://openalex.org/keywords/magnetic-flux","display_name":"Magnetic flux","score":0.41051578521728516},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.40619197487831116},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.2799440324306488},{"id":"https://openalex.org/keywords/magnetic-field","display_name":"Magnetic field","score":0.2713490128517151},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.24086105823516846},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.19484809041023254},{"id":"https://openalex.org/keywords/magnet","display_name":"Magnet","score":0.18497073650360107},{"id":"https://openalex.org/keywords/structural-engineering","display_name":"Structural engineering","score":0.1748892068862915}],"concepts":[{"id":"https://openalex.org/C135296704","wikidata":"https://www.wikidata.org/wiki/Q2473989","display_name":"Homopolar motor","level":3,"score":0.9559544324874878},{"id":"https://openalex.org/C31107917","wikidata":"https://www.wikidata.org/wiki/Q183576","display_name":"Flywheel","level":2,"score":0.8373287916183472},{"id":"https://openalex.org/C2779171476","wikidata":"https://www.wikidata.org/wiki/Q1538992","display_name":"Flywheel energy storage","level":4,"score":0.738791286945343},{"id":"https://openalex.org/C144534570","wikidata":"https://www.wikidata.org/wiki/Q5325","display_name":"Inductor","level":3,"score":0.6794574856758118},{"id":"https://openalex.org/C17281054","wikidata":"https://www.wikidata.org/wiki/Q193466","display_name":"Rotor (electric)","level":2,"score":0.6051812171936035},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.5549589991569519},{"id":"https://openalex.org/C144171764","wikidata":"https://www.wikidata.org/wiki/Q48103","display_name":"Torque","level":2,"score":0.5429345369338989},{"id":"https://openalex.org/C152565533","wikidata":"https://www.wikidata.org/wiki/Q3775766","display_name":"Counter-electromotive force","level":3,"score":0.5394068956375122},{"id":"https://openalex.org/C50587689","wikidata":"https://www.wikidata.org/wiki/Q4698328","display_name":"Air gap (plumbing)","level":2,"score":0.5308892130851746},{"id":"https://openalex.org/C21881925","wikidata":"https://www.wikidata.org/wiki/Q3503313","display_name":"Power density","level":3,"score":0.49076685309410095},{"id":"https://openalex.org/C73916439","wikidata":"https://www.wikidata.org/wiki/Q837718","display_name":"Energy storage","level":3,"score":0.4531380236148834},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.4422702193260193},{"id":"https://openalex.org/C171146098","wikidata":"https://www.wikidata.org/wiki/Q124192","display_name":"Automotive engineering","level":1,"score":0.430949330329895},{"id":"https://openalex.org/C24214142","wikidata":"https://www.wikidata.org/wiki/Q118801","display_name":"Magnetic circuit","level":3,"score":0.4262138605117798},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.4201206862926483},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.41725778579711914},{"id":"https://openalex.org/C135628077","wikidata":"https://www.wikidata.org/wiki/Q220184","display_name":"Finite element method","level":2,"score":0.41379937529563904},{"id":"https://openalex.org/C157479481","wikidata":"https://www.wikidata.org/wiki/Q177831","display_name":"Magnetic flux","level":3,"score":0.41051578521728516},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.40619197487831116},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.2799440324306488},{"id":"https://openalex.org/C115260700","wikidata":"https://www.wikidata.org/wiki/Q11408","display_name":"Magnetic field","level":2,"score":0.2713490128517151},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.24086105823516846},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.19484809041023254},{"id":"https://openalex.org/C16389437","wikidata":"https://www.wikidata.org/wiki/Q11421","display_name":"Magnet","level":2,"score":0.18497073650360107},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.1748892068862915},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tie.2020.3005107","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tie.2020.3005107","pdf_url":null,"source":{"id":"https://openalex.org/S58031724","display_name":"IEEE Transactions on Industrial Electronics","issn_l":"0278-0046","issn":["0278-0046","1557-9948"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Industrial Electronics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.9100000262260437,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[{"id":"https://openalex.org/G1841131755","display_name":null,"funder_award_id":"51577076","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G1877702077","display_name":null,"funder_award_id":"531118010386","funder_id":"https://openalex.org/F4320335787","funder_display_name":"Fundamental Research Funds for the Central Universities"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335787","display_name":"Fundamental Research Funds for the Central Universities","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1490404182","https://openalex.org/W1968383760","https://openalex.org/W1979993255","https://openalex.org/W1994534915","https://openalex.org/W2027930407","https://openalex.org/W2100881295","https://openalex.org/W2110701391","https://openalex.org/W2133098862","https://openalex.org/W2145390004","https://openalex.org/W2150585729","https://openalex.org/W2179029921","https://openalex.org/W2314251798","https://openalex.org/W2550228725","https://openalex.org/W2625869391","https://openalex.org/W2770545753","https://openalex.org/W2805335110","https://openalex.org/W2805696703","https://openalex.org/W2913075932"],"related_works":["https://openalex.org/W2655303009","https://openalex.org/W2137276318","https://openalex.org/W2907054855","https://openalex.org/W2624622458","https://openalex.org/W2375715359","https://openalex.org/W4207067360","https://openalex.org/W2145561658","https://openalex.org/W2382189100","https://openalex.org/W2316196894","https://openalex.org/W4385788849"],"abstract_inverted_index":{"Homopolar":[0],"inductor":[1,62],"machine":[2,48,63],"(HIM)":[3],"has":[4],"been":[5],"applied":[6],"in":[7,67],"the":[8,30,46,71,78,83,87,95,102,105,118,150,158,166],"field":[9],"of":[10,20,45,77,86,117,168],"flywheel":[11],"energy":[12],"storage":[13],"system":[14],"(FESS)":[15],"due":[16],"to":[17,100],"its":[18,39],"merits":[19],"simple":[21],"structure,":[22],"high":[23],"reliability,":[24],"and":[25,74,91,114,130,140,144],"low":[26],"idling":[27],"losses.":[28],"However,":[29],"HIM":[31],"features":[32],"unipolar":[33],"air-gap":[34,51],"flux":[35,52],"density,":[36,110],"which":[37],"makes":[38],"power":[40,109],"density":[41],"lower":[42],"than":[43],"that":[44,157],"electrical":[47],"with":[49,146],"bipolar":[50],"density.":[53],"Addressing":[54],"this":[55,68],"issue,":[56],"a":[57,124,162],"novel":[58],"outer":[59],"rotor":[60,115],"homopolar":[61],"(OR-HIM)":[64],"is":[65,127,161],"proposed":[66,159],"article.":[69],"First,":[70],"special":[72],"structure":[73],"operation":[75],"principle":[76],"OR-HIM":[79,88,160],"are":[80,89,120,142],"illustrated.":[81],"Then,":[82],"unit":[84],"motors":[85],"obtained":[90,148],"investigated":[92],"based":[93],"on":[94],"magnetic":[96],"equivalent":[97],"circuit":[98],"method":[99],"facilitate":[101],"design.":[103],"Moreover,":[104],"performance":[106],"indexes,":[107],"including":[108],"output":[111,138],"characteristics,":[112],"losses,":[113],"stress":[116],"OR-HIM,":[119],"fully":[121],"analyzed.":[122],"Finally,":[123],"13-kW":[125],"prototype":[126],"designed,":[128],"manufactured,":[129],"tested.":[131],"The":[132,154],"back":[133],"electromotive":[134],"force,":[135],"load":[136],"voltage,":[137],"torque,":[139],"efficiency":[141],"measured":[143],"compared":[145],"those":[147],"by":[149],"finite":[151],"element":[152],"analysis.":[153],"results":[155],"indicate":[156],"promising":[163],"candidate":[164],"for":[165],"application":[167],"FESS.":[169]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":14},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":8},{"year":2020,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}