{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/115603"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/115603","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Electromagnetic modeling and variable-speed-operation characteristics of inverter-driven, high-frequency, low-inductance permanent magnet synchronous machines","abstract":"Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01","abstract_html":"Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01","abstract_has_math":false,"creators":["Zhang, Xiaolong"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Stillwell, Andrew R","Haran, Kiruba Sivasubramaniam","Krein, Philip T","Alleyne, Andrew G","Banerjee, Arijit"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-05","date_published":"2022-05","updated_at":"2026-07-22T22:24:54Z","subjects":["Permanent magnet synchronous machine","current harmonics","electromagnetic loss","operational inductance","inverter drive","system optimization"],"languages":["en","eng"],"rights":["Copyright 2022 Xiaolong Zhang"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/115603","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Stillwell, Andrew R","Haran, Kiruba Sivasubramaniam","Krein, Philip T","Alleyne, Andrew G","Banerjee, Arijit"]},{"key":"dc:creator","label":"Author","values":["Zhang, Xiaolong"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2022-05","2022-04-22"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Permanent magnet synchronous machine","current harmonics","electromagnetic loss","operational inductance","inverter drive","system optimization"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2022 Xiaolong Zhang"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/115603"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01","The student, Xiaolong Zhang, accepted the attached license on 2022-04-22 at 10:44.","The student, Xiaolong Zhang, submitted this Dissertation for approval on 2022-04-22 at 11:26.","This Dissertation was approved for publication on 2022-04-22 at 12:46.","DSpace SAF Submission Ingestion Package generated from Vireo submission #17917 on 2022-11-11 at 12:11:55","Electric propulsion for large commercial aircraft to reduce fuel use and emissions has been proposed in light of its potential for enormous environmental and economic benefits. Electric machines with a high power-to-mass ratio and high efficiency are required in the electrified propulsion systems. There is a trend in machine design that employs high-frequency, low-inductance (HFLI), permanent magnet synchronous machines (PMSMs) to boost efficiency while minimizing weight. As the variable-speed-operation characteristics of inverter-fed HFLI PMSMs are substantially different from those of conventional machines, high-fidelity modeling and thorough analysis, including the effects of pulse-width-modulation time harmonics, are required. This dissertation describes a methodology for the machine drive system design and optimization with analytical tools for equivalent circuit parameters estimation and fast harmonic and electromagnetic loss prediction. Actual hardware tests are conducted to validate the models, tools and methodology. It is proved that the proposed machine topology, together with a two-level silicon-carbide MOSFET voltage-source inverter, can achieve two to four times higher specific power than the state of the art."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Electromagnetic modeling and variable-speed-operation characteristics of inverter-driven, high-frequency, low-inductance permanent magnet synchronous machines"]}]}],"canonical_facts":{"dc:contributor":["Stillwell, Andrew R","Haran, Kiruba Sivasubramaniam","Krein, Philip T","Alleyne, Andrew G","Banerjee, Arijit"],"dc:creator":["Zhang, Xiaolong"],"dc:date":["2022-05","2022-04-22"],"dc:description":["Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01","The student, Xiaolong Zhang, accepted the attached license on 2022-04-22 at 10:44.","The student, Xiaolong Zhang, submitted this Dissertation for approval on 2022-04-22 at 11:26.","This Dissertation was approved for publication on 2022-04-22 at 12:46.","DSpace SAF Submission Ingestion Package generated from Vireo submission #17917 on 2022-11-11 at 12:11:55","Electric propulsion for large commercial aircraft to reduce fuel use and emissions has been proposed in light of its potential for enormous environmental and economic benefits. Electric machines with a high power-to-mass ratio and high efficiency are required in the electrified propulsion systems. There is a trend in machine design that employs high-frequency, low-inductance (HFLI), permanent magnet synchronous machines (PMSMs) to boost efficiency while minimizing weight. As the variable-speed-operation characteristics of inverter-fed HFLI PMSMs are substantially different from those of conventional machines, high-fidelity modeling and thorough analysis, including the effects of pulse-width-modulation time harmonics, are required. This dissertation describes a methodology for the machine drive system design and optimization with analytical tools for equivalent circuit parameters estimation and fast harmonic and electromagnetic loss prediction. Actual hardware tests are conducted to validate the models, tools and methodology. It is proved that the proposed machine topology, together with a two-level silicon-carbide MOSFET voltage-source inverter, can achieve two to four times higher specific power than the state of the art."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/115603"],"dc:language":["en","eng"],"dc:rights":["Copyright 2022 Xiaolong Zhang"],"dc:subject":["Permanent magnet synchronous machine","current harmonics","electromagnetic loss","operational inductance","inverter drive","system optimization"],"dc:title":["Electromagnetic modeling and variable-speed-operation characteristics of inverter-driven, high-frequency, low-inductance permanent magnet synchronous machines"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Electrical & Computer Engr"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:54Z"}