{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/108356"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/108356","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"An online power loss calculation framework for IGBTs in a three-phase inverter","abstract":"Limited","abstract_html":"Limited","abstract_has_math":false,"creators":["Wu, Michael"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Banerjee, Arijit"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2020,"date_issued":"2020-08-27T00:51:36Z","date_published":"2020-08-27T00:51:36Z","updated_at":"2026-07-22T22:24:48Z","subjects":["IGBT","health","monitoring"],"languages":["en"],"rights":["Copyright 2020 Michael Wu"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/108356","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Banerjee, Arijit"]},{"key":"dc:creator","label":"Author","values":["Wu, Michael"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2020-08-27T00:51:36Z","2022-08-27T00:51:40Z","2020-05-15","2020-05"]},{"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":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"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":["IGBT","health","monitoring"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2020 Michael Wu"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/108356"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Limited","Made available in DSpace on 2020-08-27T00:51:36Z (GMT). No. of bitstreams: 2 WU-THESIS-2020.pdf: 12341010 bytes, checksum: a91d0889dde6051ebf6cd67a500a393c (MD5) LICENSE.txt: 4207 bytes, checksum: 615cd009aa3be092f88c524542b5927d (MD5) Previous issue date: 2020-05-15","Embargo set by: Seth Robbins for item 115971 Lift date: 2022-08-27T00:51:40Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Author requested closed access (OA after 2yrs) in Vireo ETD system","Insulated-gate bipolar transistors (IGBTs) are used in a wide range of high-power applications for their high voltage blocking and current conduction capabilities. In these applications, IGBTs are subjected to harsh operating conditions and face reliability issues. Online health monitoring has been proposed to reduce IGBT failure as it enables condition evaluation while keeping the power electronics system in operation. To perform online health monitoring, it is crucial to know the junction temperature of the IGBT. Many proposed methods of online health monitoring investigate the use of thermo-sensitive electrical parameters. These parameters are strong functions of the junction temperature of an IGBT. However, these parameters also vary with operating conditions like dc-link voltage and load current, which can affect the junction temperature calculation. This thesis introduces an IGBT power loss calculation framework for six IGBTs in a three-phase two-level inverter. Using a Foster network model of an IGBT module, the power loss information gives the difference between the junction temperature and the case temperature of the IGBT. The proposed framework has three main components: on-state voltage measurement circuits, a sensor interface circuit board, and a data storage system. In this thesis, two IGBT on-state voltage measurement topologies are examined and discussed. Software requirements for the sensor interface board are specified. Finally, the algorithm of a data storage system is proposed. The data storage system receives data from the measurement and sensor boards. It measures the output current of each inverter leg and calculates the power loss in all six IGBT modules.","Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2022-05-01","The student, Michael Wu, accepted the attached license on 2020-05-15 at 11:34.","The student, Michael Wu, submitted this Thesis for approval on 2020-05-15 at 11:42.","This Thesis was approved for publication on 2020-05-15 at 11:54.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15410 on 2020-08-25 at 17:45:15"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["An online power loss calculation framework for IGBTs in a three-phase inverter"]}]}],"canonical_facts":{"dc:contributor":["Banerjee, Arijit"],"dc:creator":["Wu, Michael"],"dc:date":["2020-08-27T00:51:36Z","2022-08-27T00:51:40Z","2020-05-15","2020-05"],"dc:description":["Limited","Made available in DSpace on 2020-08-27T00:51:36Z (GMT). No. of bitstreams: 2 WU-THESIS-2020.pdf: 12341010 bytes, checksum: a91d0889dde6051ebf6cd67a500a393c (MD5) LICENSE.txt: 4207 bytes, checksum: 615cd009aa3be092f88c524542b5927d (MD5) Previous issue date: 2020-05-15","Embargo set by: Seth Robbins for item 115971 Lift date: 2022-08-27T00:51:40Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Author requested closed access (OA after 2yrs) in Vireo ETD system","Insulated-gate bipolar transistors (IGBTs) are used in a wide range of high-power applications for their high voltage blocking and current conduction capabilities. In these applications, IGBTs are subjected to harsh operating conditions and face reliability issues. Online health monitoring has been proposed to reduce IGBT failure as it enables condition evaluation while keeping the power electronics system in operation. To perform online health monitoring, it is crucial to know the junction temperature of the IGBT. Many proposed methods of online health monitoring investigate the use of thermo-sensitive electrical parameters. These parameters are strong functions of the junction temperature of an IGBT. However, these parameters also vary with operating conditions like dc-link voltage and load current, which can affect the junction temperature calculation. This thesis introduces an IGBT power loss calculation framework for six IGBTs in a three-phase two-level inverter. Using a Foster network model of an IGBT module, the power loss information gives the difference between the junction temperature and the case temperature of the IGBT. The proposed framework has three main components: on-state voltage measurement circuits, a sensor interface circuit board, and a data storage system. In this thesis, two IGBT on-state voltage measurement topologies are examined and discussed. Software requirements for the sensor interface board are specified. Finally, the algorithm of a data storage system is proposed. The data storage system receives data from the measurement and sensor boards. It measures the output current of each inverter leg and calculates the power loss in all six IGBT modules.","Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2022-05-01","The student, Michael Wu, accepted the attached license on 2020-05-15 at 11:34.","The student, Michael Wu, submitted this Thesis for approval on 2020-05-15 at 11:42.","This Thesis was approved for publication on 2020-05-15 at 11:54.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15410 on 2020-08-25 at 17:45:15"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/108356"],"dc:language":["en"],"dc:rights":["Copyright 2020 Michael Wu"],"dc:subject":["IGBT","health","monitoring"],"dc:title":["An online power loss calculation framework for IGBTs in a three-phase inverter"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Electrical & Computer Engr"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:48Z"}