Concepção e análise de um sistema de energia para picosatélites
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/28282 |
Resumo: | In 1999 the CubeSat project was created to favor and minimize launch costs of picosatellites, mostly didactic. Given the constraints of volume, weight and cost, energy systems must aim for efficiency and simplicity. The CubeSat electric power system can be classified into two types: centralized systems and distributed systems. The distributed systems have numerous advantages compared to concentrated systems, for example: improved thermal distribution, lower noise generation, among others. The objectives of a CubeSat electric power system are: Keep the satellite working in both periods of sun and Eclipse, ensure the necessary power for mantain the subsystems functioning; Keep the batteries charged to supply eclipse periods; meet all the power demand peaks. To achieve these goals and meet the physical constraints imposed by the CubeSat project, the systems must operate with a reduced number of power conversion stages, particularly if they are operating in cascade; should have a stage focused in achieve the photovoltaic generator maximum power point of and control the DC bus voltage supply. This paper proposes a CubeSat power system that contains two converters in stacked topology. A boost converter that performs the regulation of the DC bus to distributed CubeSat loads, and a buck-boost converter which has two functions: to track the PV array maximum power point (MPPT) and control the batteries load current. The combination of the battery charge control and the pursuit of maximum power point in the same drive results in less battery charging time. The connection of the inverters creating the stacked topology provides duty cycle reduction in boost converter and consequently the reduction of losses in driving due to reduction of the current. In addition, the series composition with the battery voltage boost converter provides an increased DC bus voltage distributed to CubeSat loads, which reduces the load current and both converters driving losses. The experimental results show the proposed topology working and EPS efficiency compatible with concentrated commercial architecture. |
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2023-03-20T15:14:33Z2023-03-20T15:14:33Z2016-04-27http://repositorio.ufsm.br/handle/1/28282In 1999 the CubeSat project was created to favor and minimize launch costs of picosatellites, mostly didactic. Given the constraints of volume, weight and cost, energy systems must aim for efficiency and simplicity. The CubeSat electric power system can be classified into two types: centralized systems and distributed systems. The distributed systems have numerous advantages compared to concentrated systems, for example: improved thermal distribution, lower noise generation, among others. The objectives of a CubeSat electric power system are: Keep the satellite working in both periods of sun and Eclipse, ensure the necessary power for mantain the subsystems functioning; Keep the batteries charged to supply eclipse periods; meet all the power demand peaks. To achieve these goals and meet the physical constraints imposed by the CubeSat project, the systems must operate with a reduced number of power conversion stages, particularly if they are operating in cascade; should have a stage focused in achieve the photovoltaic generator maximum power point of and control the DC bus voltage supply. This paper proposes a CubeSat power system that contains two converters in stacked topology. A boost converter that performs the regulation of the DC bus to distributed CubeSat loads, and a buck-boost converter which has two functions: to track the PV array maximum power point (MPPT) and control the batteries load current. The combination of the battery charge control and the pursuit of maximum power point in the same drive results in less battery charging time. The connection of the inverters creating the stacked topology provides duty cycle reduction in boost converter and consequently the reduction of losses in driving due to reduction of the current. In addition, the series composition with the battery voltage boost converter provides an increased DC bus voltage distributed to CubeSat loads, which reduces the load current and both converters driving losses. The experimental results show the proposed topology working and EPS efficiency compatible with concentrated commercial architecture.Em 1999 o padrão CubeSat foi criado para facilitar e reduzir os custos para lançamento de picosatélites, na sua maioria de cunho didático. Dadas às restrições de volume, peso e custo, os sistemas de energia devem primar pela eficiência e simplicidade. Os sistemas elétricos de potência para CubeSat podem ser divididos em dois tipos: os sistemas concentrados e os sistemas distribuídos. Há inúmeras vantagens na utilização dos sistemas distribuídos em relação aos sistemas concentrados, como por exemplo: melhor distribuição térmica, menor geração de ruídos, dentre outras. Os objetivos de um sistema elétrico de potência para CubeSat são: Manter, tanto nos períodos de sol quanto de eclipse, os subsistemas com alimentação necessária ao seu correto funcionamento; Manter as baterias carregadas para os períodos de eclipse; suprir todos os picos de demanda de energia do CubeSat. Para alcançar esses objetivos e respeitar as restrições físicas impostas pelo padrão CubeSat, os sistemas devem operar com um reduzido número de estágios de conversão de energia, principalmente se esses estiverem operando em cascata; deve empregar um estágio com algoritmo para rastrear o ponto de máxima potência do gerador fotovoltaico e regular a tensão do barramento CC de alimentação das cargas do CubeSat. Este trabalho propõe a utilização de um sistema de energia para CubeSat que utiliza dois conversores com topologia empilhada. Um conversor boost que realiza a regulação do barramento CC distribuído para as cargas do CubeSat, e um conversor buck-boost que possui duas funções: rastrear o ponto de máxima potência (MPPT) do arranjo fotovoltaico e controlar a corrente de carga das baterias. A combinação do controle de carga das baterias e a busca do ponto de máxima potência no mesmo conversor, resulta na redução do tempo de carga das baterias. A conexão dos conversores formando a topologia empilhada proporciona a redução da razão cíclica no conversor boost, e consequentemente, a redução das perdas em condução devido a redução da corrente. Além disso, a composição em série da bateria com a tensão do conversor boost proporciona um aumento da tensão do barramento CC distribuído para as cargas do CubeSat, o que reduz as correntes de carga e novamente as perdas em condução de ambos os conversores. Os resultados experimentais comprovam o funcionamento da topologia proposta e a eficiência do EPS compatível com a eficiência dos sistemas comerciais com arquitetura concentrada.porUniversidade Federal de Santa MariaCentro de TecnologiaPrograma de Pós-Graduação em Engenharia ElétricaUFSMBrasilEngenharia ElétricaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessCubeSatEletrical power systemDC-DC ConvertersSistema elétrico de potênciaConversores CC-CCCNPQ::ENGENHARIAS::ENGENHARIA ELETRICAConcepção e análise de um sistema de energia para picosatélitesSynthesis and analysis of a cubesat electrical subsysteminfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisMartins, Mário Lúcio da Silvahttp://lattes.cnpq.br/2730012969211616Beltrame, Rafael ConcattoBaggio, José EduardoRussi, Jumar Luíshttp://lattes.cnpq.br/5932117211446307Mattos, Everson3004000000076006006006006006004450a16e-aa18-4d50-a97e-49469130b8d635fdcc44-e1e3-4ed1-a0e0-0f53bea0d876850bdee4-096a-4a72-8016-3c5d3c9f1b473b50c197-4fa1-4547-8f2c-f273702aa46885af4721-6868-481d-816b-3bd209108cdcreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALDIS_PPGEE_2016_MATTOS_EVERSON.pdfDIS_PPGEE_2016_MATTOS_EVERSON.pdfDissertação de Mestradoapplication/pdf9760730http://repositorio.ufsm.br/bitstream/1/28282/1/DIS_PPGEE_2016_MATTOS_EVERSON.pdf0c7b18807a0f4249f6c16a5e7be54bdfMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8805http://repositorio.ufsm.br/bitstream/1/28282/2/license_rdf4460e5956bc1d1639be9ae6146a50347MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81956http://repositorio.ufsm.br/bitstream/1/28282/3/license.txt2f0571ecee68693bd5cd3f17c1e075dfMD531/282822023-03-20 12:14:33.765oai:repositorio.ufsm.br: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 Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2023-03-20T15:14:33Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Concepção e análise de um sistema de energia para picosatélites |
dc.title.alternative.eng.fl_str_mv |
Synthesis and analysis of a cubesat electrical subsystem |
title |
Concepção e análise de um sistema de energia para picosatélites |
spellingShingle |
Concepção e análise de um sistema de energia para picosatélites Mattos, Everson CubeSat Eletrical power system DC-DC Converters Sistema elétrico de potência Conversores CC-CC CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
title_short |
Concepção e análise de um sistema de energia para picosatélites |
title_full |
Concepção e análise de um sistema de energia para picosatélites |
title_fullStr |
Concepção e análise de um sistema de energia para picosatélites |
title_full_unstemmed |
Concepção e análise de um sistema de energia para picosatélites |
title_sort |
Concepção e análise de um sistema de energia para picosatélites |
author |
Mattos, Everson |
author_facet |
Mattos, Everson |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Martins, Mário Lúcio da Silva |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/2730012969211616 |
dc.contributor.advisor-co1.fl_str_mv |
Beltrame, Rafael Concatto |
dc.contributor.referee1.fl_str_mv |
Baggio, José Eduardo |
dc.contributor.referee2.fl_str_mv |
Russi, Jumar Luís |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/5932117211446307 |
dc.contributor.author.fl_str_mv |
Mattos, Everson |
contributor_str_mv |
Martins, Mário Lúcio da Silva Beltrame, Rafael Concatto Baggio, José Eduardo Russi, Jumar Luís |
dc.subject.eng.fl_str_mv |
CubeSat Eletrical power system DC-DC Converters |
topic |
CubeSat Eletrical power system DC-DC Converters Sistema elétrico de potência Conversores CC-CC CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
dc.subject.por.fl_str_mv |
Sistema elétrico de potência Conversores CC-CC |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
description |
In 1999 the CubeSat project was created to favor and minimize launch costs of picosatellites, mostly didactic. Given the constraints of volume, weight and cost, energy systems must aim for efficiency and simplicity. The CubeSat electric power system can be classified into two types: centralized systems and distributed systems. The distributed systems have numerous advantages compared to concentrated systems, for example: improved thermal distribution, lower noise generation, among others. The objectives of a CubeSat electric power system are: Keep the satellite working in both periods of sun and Eclipse, ensure the necessary power for mantain the subsystems functioning; Keep the batteries charged to supply eclipse periods; meet all the power demand peaks. To achieve these goals and meet the physical constraints imposed by the CubeSat project, the systems must operate with a reduced number of power conversion stages, particularly if they are operating in cascade; should have a stage focused in achieve the photovoltaic generator maximum power point of and control the DC bus voltage supply. This paper proposes a CubeSat power system that contains two converters in stacked topology. A boost converter that performs the regulation of the DC bus to distributed CubeSat loads, and a buck-boost converter which has two functions: to track the PV array maximum power point (MPPT) and control the batteries load current. The combination of the battery charge control and the pursuit of maximum power point in the same drive results in less battery charging time. The connection of the inverters creating the stacked topology provides duty cycle reduction in boost converter and consequently the reduction of losses in driving due to reduction of the current. In addition, the series composition with the battery voltage boost converter provides an increased DC bus voltage distributed to CubeSat loads, which reduces the load current and both converters driving losses. The experimental results show the proposed topology working and EPS efficiency compatible with concentrated commercial architecture. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-04-27 |
dc.date.accessioned.fl_str_mv |
2023-03-20T15:14:33Z |
dc.date.available.fl_str_mv |
2023-03-20T15:14:33Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/28282 |
url |
http://repositorio.ufsm.br/handle/1/28282 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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300400000007 |
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600 600 600 600 600 600 |
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Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Tecnologia |
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Programa de Pós-Graduação em Engenharia Elétrica |
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UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Engenharia Elétrica |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Tecnologia |
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