Power quality improvement with a pulse width modulation control method in modular multilevel converters under varying nonlinear loads

Detalhes bibliográficos
Autor(a) principal: Mehrasa, Majid
Data de Publicação: 2020
Outros Autores: Godina, Radu, Pouresmaeil, Edris, Rodrigues, Eduardo M. G., Catalão, João P. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/116221
Resumo: UIDB/00667/2020 POCI-01-0145-FEDER-029803 (02/SAICT/2017) POCI-01-0145-FEDER-006961 (UID/EEA/50014/2019)
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spelling Power quality improvement with a pulse width modulation control method in modular multilevel converters under varying nonlinear loadsCirculating currentsControl lawsHarmonic componentModular multilevel converterSecond-order harmonicMaterials Science(all)InstrumentationEngineering(all)Process Chemistry and TechnologyComputer Science ApplicationsFluid Flow and Transfer ProcessesUIDB/00667/2020 POCI-01-0145-FEDER-029803 (02/SAICT/2017) POCI-01-0145-FEDER-006961 (UID/EEA/50014/2019)In order to reach better results for pulse width modulation (PWM)-based methods, the reference waveforms known as control laws have to be achieved with good accuracy. In this paper, three control laws are created by considering the harmonic components of modular multilevel converter (MMC) state variables to suppress the circulating currents under nonlinear load variation. The first control law consists of only the harmonic components of the MMC's output currents and voltages. Then, the second-order harmonic of circulating currents is also involved with both upper and lower arm currents in order to attain the second control law. Since circulating current suppression is the main aim of this work, the third control law is formed by measuring all harmonic components of circulating currents which impact on the arm currents as well. By making a comparison between the switching signals generated by the three proposed control laws, it is verified that the second-order harmonic of circulating currents can increase the switching losses. In addition, the existence of all circulating current harmonics causes distributed switching patterns, which is not suitable for the switches' lifetime. Each upper and lower arm has changeable capacitors, named "equivalent submodule (SM) capacitors" in this paper. To further assess these capacitors, eliminating the harmonic components of circulating currents provides fluctuations with smaller magnitudes, as well as a smaller average value for the equivalent capacitors. Moreover, the second-order harmonic has a dominant role that leads to values higher than 3 F for equivalent capacitors. In comparison with the first and second control laws, the use of the third control-law-based method will result in very small circulating currents, since it is trying to control and eliminate all harmonic components of the circulating currents. This result leads to very small magnitudes for both the upper and lower arm currents, noticeably decreasing the total MMC losses. All simulation results are verified using MATLAB software in the SIMULINK environment.UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e IndustrialDEMI - Departamento de Engenharia Mecânica e IndustrialRUNMehrasa, MajidGodina, RaduPouresmaeil, EdrisRodrigues, Eduardo M. G.Catalão, João P. S.2021-04-26T22:57:58Z2020-05-092020-05-09T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/116221eng2076-3417PURE: 18744622https://doi.org/10.3390/app10093292info: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:RCAAP2024-03-11T04:58:41Zoai:run.unl.pt:10362/116221Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:42:59.799448Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Power quality improvement with a pulse width modulation control method in modular multilevel converters under varying nonlinear loads
title Power quality improvement with a pulse width modulation control method in modular multilevel converters under varying nonlinear loads
spellingShingle Power quality improvement with a pulse width modulation control method in modular multilevel converters under varying nonlinear loads
Mehrasa, Majid
Circulating currents
Control laws
Harmonic component
Modular multilevel converter
Second-order harmonic
Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes
title_short Power quality improvement with a pulse width modulation control method in modular multilevel converters under varying nonlinear loads
title_full Power quality improvement with a pulse width modulation control method in modular multilevel converters under varying nonlinear loads
title_fullStr Power quality improvement with a pulse width modulation control method in modular multilevel converters under varying nonlinear loads
title_full_unstemmed Power quality improvement with a pulse width modulation control method in modular multilevel converters under varying nonlinear loads
title_sort Power quality improvement with a pulse width modulation control method in modular multilevel converters under varying nonlinear loads
author Mehrasa, Majid
author_facet Mehrasa, Majid
Godina, Radu
Pouresmaeil, Edris
Rodrigues, Eduardo M. G.
Catalão, João P. S.
author_role author
author2 Godina, Radu
Pouresmaeil, Edris
Rodrigues, Eduardo M. G.
Catalão, João P. S.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e Industrial
DEMI - Departamento de Engenharia Mecânica e Industrial
RUN
dc.contributor.author.fl_str_mv Mehrasa, Majid
Godina, Radu
Pouresmaeil, Edris
Rodrigues, Eduardo M. G.
Catalão, João P. S.
dc.subject.por.fl_str_mv Circulating currents
Control laws
Harmonic component
Modular multilevel converter
Second-order harmonic
Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes
topic Circulating currents
Control laws
Harmonic component
Modular multilevel converter
Second-order harmonic
Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes
description UIDB/00667/2020 POCI-01-0145-FEDER-029803 (02/SAICT/2017) POCI-01-0145-FEDER-006961 (UID/EEA/50014/2019)
publishDate 2020
dc.date.none.fl_str_mv 2020-05-09
2020-05-09T00:00:00Z
2021-04-26T22:57:58Z
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/10362/116221
url http://hdl.handle.net/10362/116221
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2076-3417
PURE: 18744622
https://doi.org/10.3390/app10093292
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.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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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