Optimization of the TEGs Configuration (Series/Parallel) in Energy Harvesting Systems with Low-Voltage Thermoelectric Generators Connected to Ultra-Low Voltage DC-DC Converters

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniv Tecnol Fed Parana UTFPR-
Autor(es): dc.contributorUniversidade Federal de Santa Catarina (UFSC)-
Autor(es): dc.contributorCatalonia Inst Energy Res-
Autor(es): dc.contributorICREA-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.creatorMorais, Flavio [UNESP]-
Autor(es): dc.creatorCarvalhaes-Dias, Pedro-
Autor(es): dc.creatorDuarte, Luis-
Autor(es): dc.creatorSpengler, Anderson-
Autor(es): dc.creatorPaiva, Kleber de-
Autor(es): dc.creatorMartins, Thiago-
Autor(es): dc.creatorCabot, Andreu-
Autor(es): dc.creatorDias, Jose Siqueira-
Data de aceite: dc.date.accessioned2022-02-22T00:10:47Z-
Data de disponibilização: dc.date.available2022-02-22T00:10:47Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/en13092297-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/196916-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/196916-
Descrição: dc.descriptionSolar radiation and human activity generate ubiquitous temperature gradients that could be harvested by thermoelectric generators (TEGs). However, most of these temperature gradients are in the range of very few degrees and, while TEGs are able to harvest them, the resulting output voltages are extremely small (a few hundreds of mV), and DC-DC converters are necessary to boost them to usable levels. Impedance matching between TEGs and DC-DC converter plays a fundamental role in the energy harvesting efficiency. Therefore, it is essential to determine the output power of the system in different configurations, in order to decide on the optimum TEG connection. Here, we present an electronic circuit to measure the maximum power that can be harvested with low-voltage TEGs connected to a DC-DC converter. The developed circuit is an electronic controlled load that drains the maximum current from the output of the DC-DC converter while maintaining its output voltage at the maximum allowed value. Using a mechanical set-up able to apply precise low temperature gradients between the hot and cold side of the TEGs, experimental data using different configurations of TEGs are obtained. The measured results show that, for ultra-low voltages, the TEG ensemble's output impedance plays an important role not only in the amount of the energy scavenged, but also in the onset temperature of the energy harvesting.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionGraduate Program in Electrical Engineering, Federal University of Santa Catarina-
Descrição: dc.descriptionSao Paulo State Univ Julio de Mesquita, Fac Sci & Engn, BR-17602496 Tupa, SP, Brazil-
Descrição: dc.descriptionUniv Tecnol Fed Parana UTFPR, Dept Elect Engn, DAELE, BR-86300000 Cornelio Procopio, PR, Brazil-
Descrição: dc.descriptionUniv Fed Santa Catarina, Dept Mobil Engn, BR-89219600 Joinville, SC, Brazil-
Descrição: dc.descriptionCatalonia Inst Energy Res, IREC, Barcelona 08930, Spain-
Descrição: dc.descriptionICREA, Catalan Inst Res & Adv Studies, Barcelona 08010, Spain-
Descrição: dc.descriptionUniv Estadual Campinas, DSIF FEEC, Dept Semicond Instrumentat & Photon, BR-13083852 Campinas, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ Julio de Mesquita, Fac Sci & Engn, BR-17602496 Tupa, SP, Brazil-
Descrição: dc.descriptionCAPES: 001-
Formato: dc.format12-
Idioma: dc.languageen-
Publicador: dc.publisherMdpi-
Relação: dc.relationEnergies-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectenergy harvesting-
Palavras-chave: dc.subjectthermoelectric generators-
Palavras-chave: dc.subjectenergy measurement-
Palavras-chave: dc.subjectseries and parallel TEGs ensemble-
Palavras-chave: dc.subjectultra-low voltage DC-DC converters-
Título: dc.titleOptimization of the TEGs Configuration (Series/Parallel) in Energy Harvesting Systems with Low-Voltage Thermoelectric Generators Connected to Ultra-Low Voltage DC-DC Converters-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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