]> 2026-05-18T20:48:14-03:00 Desing of a three-phase t-type interleaved converter 0 pt-br engenharia eletrica conversor ca-cc bidirecional t-type interleaved modelo dinamico estrategias de modulacao Lazzarin, Telles Brunelli Waltrich, Gierri Universidade Federal de Santa Catarina Programa de Pós-Graduação em Engenharia Elétrica Albuquerque, Ícaro de Almeida 2024 2460310.5 139 p. 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001000800000003000900008005001700017008004100034040003800075090002700113100003500140245018600175260001000361300001800371500004400389502016800433504002500601520226500626520179002891650002504681650003304706650002304739650002104762650003204783700004304815700003604858710009704894856006904991 00000nam a2200000 a 4500 05374 000 0 241002s2024    scba   g m    000 0 eng d 008 0 ##$a BR-FlWIK $b por $c BR-FlWIK $d BR-FlUSC 040 0 ##$a CETD $b UFSC $c PEEL $d 2185 090 0 1#$a Albuquerque, Ícaro de Almeida 100 0 10$a Desing of a three-phase t-type interleaved converter $h [ recurso eletrônico ] / $c Ícaro de Almeida Albuquerque ; orientador, Telles Brunelli Lazzarin ; coorientador, Gierri Waltrich 245 0 ##$c 2024. 260 0 ##$a 139 p. : $b il. 300 0 ##$a Disponível somente em versão on-line. 500 0 ##$a Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2024. 502 0 ##$a Inclui referências. 504 0 ##$a O presente trabalho propõe o conversor trifásico T-Type intercalado (interleaved) empregando transformadores de interfase como uma solução para aplicações de conversores CC-CA bidirecionais, tais como em microrredes ou em carregadores de veículos elétricos. Nesse sentido, primeiramente é realizada uma análise matemática detalhada do conversor de modo a caracterizá-lo para um número qualquer de módulos em paralelo. Realiza-se a descrição de um método numérico para obtenção das formas de onda comutadas das correntes de modo comum e de circulação entre os módulos, que é validada por meio de software de simulação. Em relação ao projeto do conversor, uma metodologia visando otimização é proposta com o objetivo de reduzir as perdas nos dispositivos semicondutores e nos elementos magnéticos. A rotina de otimização é baseada no algoritmo Enxame de Partículas (PSO, do inglês Particle Swarm Optimization) e retorna as variáveis construtivas dos magnéticos para uma dada condição de operação. Portanto, para uma aplicação de 10 kW em uma rede trifásica a três fios de 220 V / 60 Hz, o algoritmo proposto foi aplicado e os magnéticos resultantes foram construídos e avaliados através de testes experimentais. A eficiência do conversor foi verificada experimentalmente para diferentes estratégias de modulação, obtendo 98% de eficiência em toda faixa de operação nominal. Em se tratando do controle, um modelo dinâmico médio é proposto para o conversor considerando as dinâmicas do laço de travamento de fase (PLL, do inglês Phase-Locked Loop), o qual foi baseado no PLL de eixo de referência síncrono (SRF-PLL), e das demais malhas de controle, perfazendo um modelo em malha fechada completo do conversor. Tal modelo foi utilizado para ajuste do controle e avaliação preliminar de estabilidade. A validação das estratégias de controle propostas foi realizada através de software de simulação. As análises realizadas apontam que o conversor trifásico T-Type interleaved é capaz de prover características de conversores multiníveis utilizando módulos de três níveis aplicando a técnica de intercalamento, de modo a apresentar alta eficiência e potencial para projetos compactos. 8#$a Abstract: This work proposes a three-phase T-Type interleaved converter employing interphase transformers as a solution for applications requiring bidirectional AC-DC converters, such as microgrids and electric vehicle chargers. In this scenario, the converter is analytically characterized for any number of interleaved modules. The analysis introduces a numerical model to assess the converter’s switched common mode and circulating currents, which is validated through comparison with simulation software. Regarding the design of the converter, an optimal method is proposed to minimize losses in switching devices and magnetic elements. The algorithm is based on Particle Swarm Optimization (PSO) and returns the constructive parameters of the magnetic elements for a given operational condition. Therefore, for an application of 10 kW in a 220 V / 60 Hz mains, the proposed method was employed, and the resulting magnetic elements were built and validated through experimental testing. The converter’s efficiency was evaluated for different modulation schemes, obtaining 98% efficiency over the rated power range. Concerning the control strategy, an average dynamic model was proposed, considering the dynamics of the Phase-Locked Loop (PLL) based on the SRF-PLL, and all proposed control loops, resulting in a complete closed-loop model of the converter. The model was utilized for controller tuning and preliminary assessment of the converter’s stability. The proposed control strategy’s validation was performed in simulation software. The analysis of the T-Type interleaved converter concludes that this converter can feature multilevel characteristics by employing the interleaving of three-level modules, resulting in high efficiency and potentially compact designs. 520 0 04$a Engenharia elétrica 04$a Conversor CA-CC bidirecional 04$a T-type interleaved 04$a Modelo dinâmico 04$a Estratégias de modulação 650 0 1#$a Lazzarin, Telles Brunelli, $e orientador 1#$a Waltrich, Gierri, $e coorientador 700 0 2#$a Universidade Federal de Santa Catarina $b Programa de Pós-Graduação em Engenharia Elétrica 710 0 40$z Versão integral em pdf $u https://bu.ufsc.br/teses/PEEL2185-D.pdf 856 0 B000083 001 0 BR-FlWIK 003 0 20241002170112.0 005