{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/46898"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/46898","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Methods for increasing energy harvest with PV module integrated power converters","abstract":"Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2013-11-26T19:17:48Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Ehlmann_Jonathan.docx: 3894710 bytes, checksum: 2990a0f32fd3242a4a70f2e75463a6c7 (MD5) Ehlmann_Jonathan.pdf: 1021930 bytes, checksum: 8632d5fcde02cb50730be169e7dea887 (MD5)","abstract_html":"Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2013-11-26T19:17:48Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Ehlmann_Jonathan.docx: 3894710 bytes, checksum: 2990a0f32fd3242a4a70f2e75463a6c7 (MD5) Ehlmann_Jonathan.pdf: 1021930 bytes, checksum: 8632d5fcde02cb50730be169e7dea887 (MD5)","abstract_has_math":false,"creators":["Ehlmann, Jonathan"],"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":["Chapman, Patrick L."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-01-16T18:25:42Z","date_published":"2014-01-16T18:25:42Z","updated_at":"2026-07-22T22:25:38Z","subjects":["Maximum power point tracking (MPPT)","Alternating current photovoltaic (ACPV)","Microinverter","dc optimizer","Photovoltaic (PV)","Power Conversion","Power Electronics","Photovoltaic (PV) Submodule","Photovoltaic (PV) SubMIC","Module Integrated","Solar","Energy Harvest","Global maximum power point tracking (MPPT)","Local maximum power point tracking (MPPT)","Distributed maximum power point tracking (MPPT)"],"languages":["en"],"rights":["Copyright 2013 Jonathan Ehlmann"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/46898","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Chapman, Patrick L."]},{"key":"dc:creator","label":"Author","values":["Ehlmann, Jonathan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2014-01-16T18:25:42Z","2016-01-16T11:02:07Z","2013-12"]},{"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":["Maximum power point tracking (MPPT)","Alternating current photovoltaic (ACPV)","Microinverter","dc optimizer","Photovoltaic (PV)","Power Conversion","Power Electronics","Photovoltaic (PV) Submodule","Photovoltaic (PV) SubMIC","Module Integrated","Solar","Energy Harvest","Global maximum power point tracking (MPPT)","Local maximum power point tracking (MPPT)","Distributed maximum power point tracking (MPPT)"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2013 Jonathan Ehlmann"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/46898"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2013-11-26T19:17:48Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Ehlmann_Jonathan.docx: 3894710 bytes, checksum: 2990a0f32fd3242a4a70f2e75463a6c7 (MD5) Ehlmann_Jonathan.pdf: 1021930 bytes, checksum: 8632d5fcde02cb50730be169e7dea887 (MD5)","Made available in DSpace on 2014-01-16T18:25:42Z (GMT). No. of bitstreams: 3 Jonathan_Ehlmann.pdf: 1021930 bytes, checksum: 8632d5fcde02cb50730be169e7dea887 (MD5) Ehlmann_Jonathan.docx: 3894710 bytes, checksum: 2990a0f32fd3242a4a70f2e75463a6c7 (MD5) license.txt: 4066 bytes, checksum: 3729cd1fdb8eaa824375cabe687cf330 (MD5)","Restriction data tranferred 2014-07-01T11:36:45-05:00 Original Data Group with Access Administrator Release Date: 2016-01-16 12:27:27 UTC Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Item marked as restricted to the 'Administrator' Group (id=1) by Seth Robbins (robbins.sd@gmail.com) on 2014-01-16T18:27:33Z Item is restricted until 2016-01-16T18:27:27Z","Increasing energy harvest from PV systems and reducing overall PV system costs are important to the continued adoption of solar energy. In an effort to achieve this, power converters are being integrated into PV modules. These power converters allow for more flexibility in PV system design by enabling each PV module to operate independently. The physical integration of these power converters creates new possibilities to improve the energy harvest. This thesis proposes methods and circuits that leverage this physical integration to further enhance PV module integrated power converters. A steady-state, SPICE-like, modified nodal analysis based (MNA) simulation tool is developed to study the effects of PV module mismatch and shading on PV systems. This simulation tool is used to calculate the power output of a PV system under varying conditions. This facilitates the comparisons of different algorithms and circuits for increasing energy harvest. Certain assumptions can be made when it is known that a power converter will only be operating on a single PV module, and extra voltage nodes are accessible when a power converter is physically integrated into a PV module. Two global maximum power point tracking (MPPT) algorithms are proposed that leverage this fact to improve energy harvest. Different circuit architectures are proposed to enable MPPT for a smaller subsection of PV cells called PV submodules. By tracking the MPP for PV submodules, further energy harvest improvements can be made. The proposed circuits include smaller power converters and multiple input converters for full PV submodule power processing as well as differential power processing (DPP) converters to handle the difference in power between PV submodules.","Limited Restriction Lifted for Item 46917 on 2016-01-16T11:02:07Z."]},{"key":"dc:title","label":"Title","values":["Methods for increasing energy harvest with PV module integrated power converters"]}]}],"canonical_facts":{"dc:contributor":["Chapman, Patrick L."],"dc:creator":["Ehlmann, Jonathan"],"dc:date":["2014-01-16T18:25:42Z","2016-01-16T11:02:07Z","2013-12"],"dc:description":["Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2013-11-26T19:17:48Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Ehlmann_Jonathan.docx: 3894710 bytes, checksum: 2990a0f32fd3242a4a70f2e75463a6c7 (MD5) Ehlmann_Jonathan.pdf: 1021930 bytes, checksum: 8632d5fcde02cb50730be169e7dea887 (MD5)","Made available in DSpace on 2014-01-16T18:25:42Z (GMT). No. of bitstreams: 3 Jonathan_Ehlmann.pdf: 1021930 bytes, checksum: 8632d5fcde02cb50730be169e7dea887 (MD5) Ehlmann_Jonathan.docx: 3894710 bytes, checksum: 2990a0f32fd3242a4a70f2e75463a6c7 (MD5) license.txt: 4066 bytes, checksum: 3729cd1fdb8eaa824375cabe687cf330 (MD5)","Restriction data tranferred 2014-07-01T11:36:45-05:00 Original Data Group with Access Administrator Release Date: 2016-01-16 12:27:27 UTC Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system","Item marked as restricted to the 'Administrator' Group (id=1) by Seth Robbins (robbins.sd@gmail.com) on 2014-01-16T18:27:33Z Item is restricted until 2016-01-16T18:27:27Z","Increasing energy harvest from PV systems and reducing overall PV system costs are important to the continued adoption of solar energy. In an effort to achieve this, power converters are being integrated into PV modules. These power converters allow for more flexibility in PV system design by enabling each PV module to operate independently. The physical integration of these power converters creates new possibilities to improve the energy harvest. This thesis proposes methods and circuits that leverage this physical integration to further enhance PV module integrated power converters. A steady-state, SPICE-like, modified nodal analysis based (MNA) simulation tool is developed to study the effects of PV module mismatch and shading on PV systems. This simulation tool is used to calculate the power output of a PV system under varying conditions. This facilitates the comparisons of different algorithms and circuits for increasing energy harvest. Certain assumptions can be made when it is known that a power converter will only be operating on a single PV module, and extra voltage nodes are accessible when a power converter is physically integrated into a PV module. Two global maximum power point tracking (MPPT) algorithms are proposed that leverage this fact to improve energy harvest. Different circuit architectures are proposed to enable MPPT for a smaller subsection of PV cells called PV submodules. By tracking the MPP for PV submodules, further energy harvest improvements can be made. The proposed circuits include smaller power converters and multiple input converters for full PV submodule power processing as well as differential power processing (DPP) converters to handle the difference in power between PV submodules.","Limited Restriction Lifted for Item 46917 on 2016-01-16T11:02:07Z."],"dc:identifier":["http://hdl.handle.net/2142/46898"],"dc:language":["en"],"dc:rights":["Copyright 2013 Jonathan Ehlmann"],"dc:subject":["Maximum power point tracking (MPPT)","Alternating current photovoltaic (ACPV)","Microinverter","dc optimizer","Photovoltaic (PV)","Power Conversion","Power Electronics","Photovoltaic (PV) Submodule","Photovoltaic (PV) SubMIC","Module Integrated","Solar","Energy Harvest","Global maximum power point tracking (MPPT)","Local maximum power point tracking (MPPT)","Distributed maximum power point tracking (MPPT)"],"dc:title":["Methods for increasing energy harvest with PV module integrated power converters"],"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":"2026-07-22T22:25:38Z"}