Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/13453 |
Resumo: | In this work, DC and AC parts of hybrid microgrids are interconnected by a neutral point clamped-NPC converter controlled using a new backstepping predictive (BP) method. The NPC converter is controlled to operate in the DC microgrid voltage control mode or in the AC microgrid power control mode. The novel backstepping predictive controller is designed using the dq state space dynamic model of the NPC converter connected to the hybrid microgrid. The designed BP controller regulates the DC voltage or AC injected power, balances the capacitor voltages, controls the AC currents, and enforces the near unity power factor. Simulation (MATLAB/Simulink) and experimental (laboratory prototype) results show that the converter can regulate the DC voltage in the DC microgrid interconnection point, by adjusting the AC power conversion to compensate variations on the loads or on the distributed renewable energy sources in the DC microgrid. AC currents are sinusoidal with low harmonic distortion. The obtained BP controller is faster at balancing capacitor voltages than PWM (pulse width modulation) control with carrier offset. The fast AC power response allows the converter to be used as a primary frequency regulator of the AC microgrid. This research is appropriate for power and voltage control in hybrid microgrids with renewable energy. |
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Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped convertersMicrogridsBacksteppingBackstepping predictiveHybridMultilevel converterCapacitor voltage balanceIn this work, DC and AC parts of hybrid microgrids are interconnected by a neutral point clamped-NPC converter controlled using a new backstepping predictive (BP) method. The NPC converter is controlled to operate in the DC microgrid voltage control mode or in the AC microgrid power control mode. The novel backstepping predictive controller is designed using the dq state space dynamic model of the NPC converter connected to the hybrid microgrid. The designed BP controller regulates the DC voltage or AC injected power, balances the capacitor voltages, controls the AC currents, and enforces the near unity power factor. Simulation (MATLAB/Simulink) and experimental (laboratory prototype) results show that the converter can regulate the DC voltage in the DC microgrid interconnection point, by adjusting the AC power conversion to compensate variations on the loads or on the distributed renewable energy sources in the DC microgrid. AC currents are sinusoidal with low harmonic distortion. The obtained BP controller is faster at balancing capacitor voltages than PWM (pulse width modulation) control with carrier offset. The fast AC power response allows the converter to be used as a primary frequency regulator of the AC microgrid. This research is appropriate for power and voltage control in hybrid microgrids with renewable energy.MDPIRCIPLBarros, J. DionísioRocha, Luis LamySilva, J. Fernando2021-06-16T11:53:13Z2021-05-192021-05-19T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/13453engBARROS, J. Dionísio; ROCHA, Luís; SILVA, J. Fernando – Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters. Electronics. eISSN 2079-9292. Vol. 10, N.º 10 (2021), pp. 1-18info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T10:08:10ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters |
title |
Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters |
spellingShingle |
Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters Barros, J. Dionísio Microgrids Backstepping Backstepping predictive Hybrid Multilevel converter Capacitor voltage balance |
title_short |
Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters |
title_full |
Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters |
title_fullStr |
Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters |
title_full_unstemmed |
Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters |
title_sort |
Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters |
author |
Barros, J. Dionísio |
author_facet |
Barros, J. Dionísio Rocha, Luis Lamy Silva, J. Fernando |
author_role |
author |
author2 |
Rocha, Luis Lamy Silva, J. Fernando |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Barros, J. Dionísio Rocha, Luis Lamy Silva, J. Fernando |
dc.subject.por.fl_str_mv |
Microgrids Backstepping Backstepping predictive Hybrid Multilevel converter Capacitor voltage balance |
topic |
Microgrids Backstepping Backstepping predictive Hybrid Multilevel converter Capacitor voltage balance |
description |
In this work, DC and AC parts of hybrid microgrids are interconnected by a neutral point clamped-NPC converter controlled using a new backstepping predictive (BP) method. The NPC converter is controlled to operate in the DC microgrid voltage control mode or in the AC microgrid power control mode. The novel backstepping predictive controller is designed using the dq state space dynamic model of the NPC converter connected to the hybrid microgrid. The designed BP controller regulates the DC voltage or AC injected power, balances the capacitor voltages, controls the AC currents, and enforces the near unity power factor. Simulation (MATLAB/Simulink) and experimental (laboratory prototype) results show that the converter can regulate the DC voltage in the DC microgrid interconnection point, by adjusting the AC power conversion to compensate variations on the loads or on the distributed renewable energy sources in the DC microgrid. AC currents are sinusoidal with low harmonic distortion. The obtained BP controller is faster at balancing capacitor voltages than PWM (pulse width modulation) control with carrier offset. The fast AC power response allows the converter to be used as a primary frequency regulator of the AC microgrid. This research is appropriate for power and voltage control in hybrid microgrids with renewable energy. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-16T11:53:13Z 2021-05-19 2021-05-19T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.21/13453 |
url |
http://hdl.handle.net/10400.21/13453 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
BARROS, J. Dionísio; ROCHA, Luís; SILVA, J. Fernando – Backstepping predictive control of hybrid microgrids interconnected by neutral point clamped converters. Electronics. eISSN 2079-9292. Vol. 10, N.º 10 (2021), pp. 1-18 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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1777304543807143936 |