{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/115803"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/115803","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Secondary voltage and frequency control for dispatchable virtual oscillator controlled inverters","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms","abstract_has_math":false,"creators":["Roberts, T.G."],"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":["Dominguez-Garcia, Alejandro D"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-05","date_published":"2022-05","updated_at":"2026-07-22T22:24:55Z","subjects":["Grid Forming Inverter","Dispatchable virtual oscillator control","dvoc","secondary frequency control","secondary voltage control","power systems"],"languages":["en","eng"],"rights":["Copyright 2022 T.G. Roberts"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/115803","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Dominguez-Garcia, Alejandro D"]},{"key":"dc:creator","label":"Author","values":["Roberts, T.G."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2022-05","2022-04-29"]},{"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":["Grid Forming Inverter","Dispatchable virtual oscillator control","dvoc","secondary frequency control","secondary voltage control","power systems"]}]},{"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 T.G. Roberts"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/115803"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms","The student, T.G. Roberts, accepted the attached license on 2022-04-28 at 15:41.","The student, T.G. Roberts, submitted this Thesis for approval on 2022-04-28 at 15:49.","This Thesis was approved for publication on 2022-04-29 at 08:34.","DSpace SAF Submission Ingestion Package generated from Vireo submission #18007 on 2022-11-11 at 17:51:26","With the introduction of more distributed energy resources (DERs) on the grid, there is also a decrease in the amount of rotating inertia that can be relied upon to keep the grid frequency and voltage stable. Grid following inverters (GFLs) connect renewable resources to the grid but do not have capabilities to control their output frequency and voltage, and are instead susceptible to any grid disturbances. Grid forming inverters (GFM) in contrast, are inverters that can help keep voltage and frequency stable; even in systems with high percentages of renewables or microgrids that are fully renewable based. In this thesis we examine three types of GFMs, droop controlled, virtual synchronous machine (VSM) controlled, and dispatchable virtual oscillator controlled (dVOC), in both their steady state and dynamic responses. The steady state responses are examined in order to determine how nonlinearities in the dVOC-based inverters compare to the linear behavior of droop and VSM control. Then, for the dynamic simulations, power flow is first be solved using modified versions of the distributed slack bus Newton-Raphson (NR) power flow problem to find initial conditions. Followed by both primary controlled open-loop simulations with a three bus microgrid, and secondary controlled closed-loop simulations on the same system. Finally, we present how the systems react to disturbances, and then outline a plan for further testing."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Secondary voltage and frequency control for dispatchable virtual oscillator controlled inverters"]}]}],"canonical_facts":{"dc:contributor":["Dominguez-Garcia, Alejandro D"],"dc:creator":["Roberts, T.G."],"dc:date":["2022-05","2022-04-29"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms","The student, T.G. Roberts, accepted the attached license on 2022-04-28 at 15:41.","The student, T.G. Roberts, submitted this Thesis for approval on 2022-04-28 at 15:49.","This Thesis was approved for publication on 2022-04-29 at 08:34.","DSpace SAF Submission Ingestion Package generated from Vireo submission #18007 on 2022-11-11 at 17:51:26","With the introduction of more distributed energy resources (DERs) on the grid, there is also a decrease in the amount of rotating inertia that can be relied upon to keep the grid frequency and voltage stable. Grid following inverters (GFLs) connect renewable resources to the grid but do not have capabilities to control their output frequency and voltage, and are instead susceptible to any grid disturbances. Grid forming inverters (GFM) in contrast, are inverters that can help keep voltage and frequency stable; even in systems with high percentages of renewables or microgrids that are fully renewable based. In this thesis we examine three types of GFMs, droop controlled, virtual synchronous machine (VSM) controlled, and dispatchable virtual oscillator controlled (dVOC), in both their steady state and dynamic responses. The steady state responses are examined in order to determine how nonlinearities in the dVOC-based inverters compare to the linear behavior of droop and VSM control. Then, for the dynamic simulations, power flow is first be solved using modified versions of the distributed slack bus Newton-Raphson (NR) power flow problem to find initial conditions. Followed by both primary controlled open-loop simulations with a three bus microgrid, and secondary controlled closed-loop simulations on the same system. Finally, we present how the systems react to disturbances, and then outline a plan for further testing."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/115803"],"dc:language":["en","eng"],"dc:rights":["Copyright 2022 T.G. Roberts"],"dc:subject":["Grid Forming Inverter","Dispatchable virtual oscillator control","dvoc","secondary frequency control","secondary voltage control","power systems"],"dc:title":["Secondary voltage and frequency control for dispatchable virtual oscillator controlled inverters"],"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":"2026-07-22T22:24:55Z"}