{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/120431"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/120431","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Sensorless control of an interior permanent magnet synchronous motor with a three level t-type inverter","abstract":"Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01","abstract_html":"Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01","abstract_has_math":false,"creators":["Zhao, Junhan"],"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":["Haran, Kiruba Sivasubramaniam"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-05","date_published":"2023-05","updated_at":"2026-07-22T22:24:57Z","subjects":["Sensorless Control","Ipmsm","T-type Inverter","Svpwm"],"languages":["en","eng"],"rights":["Copyright 2023 Junhan Zhao"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/120431","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Haran, Kiruba Sivasubramaniam"]},{"key":"dc:creator","label":"Author","values":["Zhao, Junhan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2023-05","2023-05-01"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"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":["Sensorless Control","Ipmsm","T-type Inverter","Svpwm"]}]},{"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 2023 Junhan Zhao"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/120431"]}]},{"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 2025-05-01","The student, Junhan Zhao, accepted the attached license on 2023-04-26 at 22:05.","The student, Junhan Zhao, submitted this Thesis for approval on 2023-04-26 at 22:12.","This Thesis was approved for publication on 2023-05-01 at 14:55.","DSpace SAF Submission Ingestion Package generated from Vireo submission #19206 on 2023-09-01 at 17:15:13","An encoder or resolver is widely utilized for the rotor position and speed feedback in permanent magnet synchronous motor control. However, these sensors sometimes increase the system’s cost, size, and complexity. Sensorless control is an alternative strategy, which estimates the rotor position and speed through multi-physical parameters. However, sensorless control requires less harmonic distortion in the motor current and voltage, leading to a large power filter, which further increases the system’s size. Therefore, an advanced power electronics typology with less THD is also critical for high accurate sensorless control motor system. Another challenge for sensorless control is the transition between open-loop starting from zero speed and closed-loop control. An unceremonious transition will lead to motor nonalignment and generate significant vibration. The experimental prototype consists of a three-level T-type inverter and a high-power IPMSM, which demonstrated a smooth transition between the open-loop control and closed-loop sensorless control with a speed error of less than 5rpm and an accurate sensorless closed-loop control with an error of less than 1rpm, with the help of a flux linkage observer."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Sensorless control of an interior permanent magnet synchronous motor with a three level t-type inverter"]}]}],"canonical_facts":{"dc:contributor":["Haran, Kiruba Sivasubramaniam"],"dc:creator":["Zhao, Junhan"],"dc:date":["2023-05","2023-05-01"],"dc:description":["Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01","The student, Junhan Zhao, accepted the attached license on 2023-04-26 at 22:05.","The student, Junhan Zhao, submitted this Thesis for approval on 2023-04-26 at 22:12.","This Thesis was approved for publication on 2023-05-01 at 14:55.","DSpace SAF Submission Ingestion Package generated from Vireo submission #19206 on 2023-09-01 at 17:15:13","An encoder or resolver is widely utilized for the rotor position and speed feedback in permanent magnet synchronous motor control. However, these sensors sometimes increase the system’s cost, size, and complexity. Sensorless control is an alternative strategy, which estimates the rotor position and speed through multi-physical parameters. However, sensorless control requires less harmonic distortion in the motor current and voltage, leading to a large power filter, which further increases the system’s size. Therefore, an advanced power electronics typology with less THD is also critical for high accurate sensorless control motor system. Another challenge for sensorless control is the transition between open-loop starting from zero speed and closed-loop control. An unceremonious transition will lead to motor nonalignment and generate significant vibration. The experimental prototype consists of a three-level T-type inverter and a high-power IPMSM, which demonstrated a smooth transition between the open-loop control and closed-loop sensorless control with a speed error of less than 5rpm and an accurate sensorless closed-loop control with an error of less than 1rpm, with the help of a flux linkage observer."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/120431"],"dc:language":["en","eng"],"dc:rights":["Copyright 2023 Junhan Zhao"],"dc:subject":["Sensorless Control","Ipmsm","T-type Inverter","Svpwm"],"dc:title":["Sensorless control of an interior permanent magnet synchronous motor with a three level t-type inverter"],"dc:type":["text"],"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":"2026-07-22T22:24:57Z"}