{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/107967"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/107967","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Design of 10 MW low inductance PM generator for direct drive offshore wind turbine","abstract":"Direct drive permanent magnet synchronous generators (PMSG) in wind turbine applications are becoming increasingly popular due to their reliability compared to medium speed generators with a gearbox. A proposed generator-drive scheme with reduced active switching provides a way to reduce the power electronics cost significantly. This requires the per unit reactance (Xpu) of the generator to be low compared to conventional generators. Three PMSG topologies were designed, optimized and analyzed for their performance for this 10 MW direct drive generator-drive system. Optimization of these generator topologies for their efficiency and weight was performed. Comparisons between them for the efficiency, weight, Xpu, and cost are presented. Once the design is selected, integration of generator-drive system, challenges and results are also discussed and presented.","abstract_html":"Direct drive permanent magnet synchronous generators (PMSG) in wind turbine applications are becoming increasingly popular due to their reliability compared to medium speed generators with a gearbox. A proposed generator-drive scheme with reduced active switching provides a way to reduce the power electronics cost significantly. This requires the per unit reactance (Xpu) of the generator to be low compared to conventional generators. Three PMSG topologies were designed, optimized and analyzed for their performance for this 10 MW direct drive generator-drive system. Optimization of these generator topologies for their efficiency and weight was performed. Comparisons between them for the efficiency, weight, Xpu, and cost are presented. Once the design is selected, integration of generator-drive system, challenges and results are also discussed and presented.","abstract_has_math":false,"creators":["Thusara Samith Sirimanna, Sirimanna Withanage Don"],"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":2020,"date_issued":"2020-08-26T21:54:48Z","date_published":"2020-08-26T21:54:48Z","updated_at":"2026-07-22T22:24:47Z","subjects":["Direct-drive wind turbine PMSG Low inductance machine"],"languages":["en"],"rights":["Copyright 2020 Sirimanna Withanage Don Thusara Samith Sirimanna"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/107967","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":["Thusara Samith Sirimanna, Sirimanna Withanage Don"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2020-08-26T21:54:48Z","2020-05-05","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":["Direct-drive wind turbine PMSG Low inductance machine"]}]},{"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 Sirimanna Withanage Don Thusara Samith Sirimanna"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/107967"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Direct drive permanent magnet synchronous generators (PMSG) in wind turbine applications are becoming increasingly popular due to their reliability compared to medium speed generators with a gearbox. A proposed generator-drive scheme with reduced active switching provides a way to reduce the power electronics cost significantly. This requires the per unit reactance (Xpu) of the generator to be low compared to conventional generators. Three PMSG topologies were designed, optimized and analyzed for their performance for this 10 MW direct drive generator-drive system. Optimization of these generator topologies for their efficiency and weight was performed. Comparisons between them for the efficiency, weight, Xpu, and cost are presented. Once the design is selected, integration of generator-drive system, challenges and results are also discussed and presented.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2020-08-25 without embargo terms","The student, Sirimanna Withanage Don Thusara Samith Sirimanna, accepted the attached license on 2020-05-01 at 17:23.","The student, Sirimanna Withanage Don Thusara Samith Sirimanna, submitted this Thesis for approval on 2020-05-01 at 17:37.","This Thesis was approved for publication on 2020-05-05 at 11:08.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15161 on 2020-08-25 at 17:11:25","Made available in DSpace on 2020-08-26T21:54:48Z (GMT). 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This requires the per unit reactance (Xpu) of the generator to be low compared to conventional generators. Three PMSG topologies were designed, optimized and analyzed for their performance for this 10 MW direct drive generator-drive system. Optimization of these generator topologies for their efficiency and weight was performed. Comparisons between them for the efficiency, weight, Xpu, and cost are presented. Once the design is selected, integration of generator-drive system, challenges and results are also discussed and presented.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2020-08-25 without embargo terms","The student, Sirimanna Withanage Don Thusara Samith Sirimanna, accepted the attached license on 2020-05-01 at 17:23.","The student, Sirimanna Withanage Don Thusara Samith Sirimanna, submitted this Thesis for approval on 2020-05-01 at 17:37.","This Thesis was approved for publication on 2020-05-05 at 11:08.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15161 on 2020-08-25 at 17:11:25","Made available in DSpace on 2020-08-26T21:54:48Z (GMT). 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