Dispositivo para Medição de Parâmetros Internos, Diagnóstico de Falhas e Previsão de Vida Útil em Capacitores Eletrolíticos de Conversores Utilizados em Veículos Elétricos

Leonardo Acosta Rodrigues; Anderson Silva Vaccari; Gierri Waltrich

doi:10.18618/REP.2023.3.0003

Authors

Leonardo Acosta Rodrigues Instituto de Eletrônica de Potência – INEP, Universidade Federal de Santa Catarina, Florianópolis – SC, Brasil
Anderson Silva Vaccari Vale S.A, Rio de Janeiro – RJ, Brasil
Gierri Waltrich Instituto de Eletrônica de Potência – INEP, Universidade Federal de Santa Catarina, Florianópolis – SC, Brasil https://orcid.org/0000-0003-0968-8975

DOI:

https://doi.org/10.18618/REP.2023.3.0003

Keywords:

Diagnóstico, Observador, Veículos Elétricos, Vida Útil do Capacitor

Abstract

Um dos componentes principais que compõe a maioria de falhas em um conversor de tensão se trata do capacitor do tipo eletrolítico de alumínio, cuja categoria possui menor tempo de vida útil. Dito isso, diversas estratégias para diagnóstico de falhas e previsão de vida útil foram propostas ao longo dos anos, sendo a maioria voltadas para configurações onde é possível a manipulação diretamente no sistema, alterando a modulação ou controle. Neste sentido, visando atuar em um conversor CA/CC/CA como observador, é proposto um dispositivo eletrônico que pode ser acoplado ao conversor de um Veículo Elétrico para estimar parâmetros internos e a vida útil desses capacitores sem alterar o circuito original. Esta estimativa é realizada após a conexão do inversor ao retificador externo no momento de carga, onde o mesmo é conectado à rede elétrica, proporcionando a variação de tensão necessária no barramento para estimar os parâmetros internos do componente, possibilitando diagnóstico e estimativa do momento de falha. O desenvolvimento matemático de ambos os métodos é realizado e resultados computacionais e experimentais são obtidos, demonstrando taxas de erros satisfatórias para estimativa dos parâmetros, possibilitando a predição da vida útil do componente e validando o sistema proposto.

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Author Biographies

Leonardo Acosta Rodrigues, Instituto de Eletrônica de Potência – INEP, Universidade Federal de Santa Catarina, Florianópolis – SC, Brasil

nasceu em Rosário do Sul, Brasil, em 1998. Possui graduação (2019) pela Universidade Federal do Pampa, Alegrete, Brasil, e mestrado (2023) pela Universidade Federal de Santa Catarina, Florianópolis, Brasil, ambos em engenharia elétrica. Suas áreas de interesse na eletrônica de potência incluem estratégias de modulação, modelagem e controle aplicados a conversores estáticos de potência.

Anderson Silva Vaccari, Vale S.A, Rio de Janeiro – RJ, Brasil

atualmente é engenheiro de desenvolvimento da Vale SA atuando no desenvolvimento de novas tecnologias relacionadas a Locomotivas, Vagões e Trem de Passageiro. Tem experiência na área de Engenharia Aeroespacial, com ênfase em Sistemas Aeroespaciais, atuando principalmente nos seguintes temas: modeling, engenharia de sistema, sistemas críticos, processos, integração de sistemas, entre outros. Tem também experiência em equipamentos de Ensaios Não Destrutivos tendo atuado na indústria de Petróleo e Gás com foco em tubulações.

Gierri Waltrich, Instituto de Eletrônica de Potência – INEP, Universidade Federal de Santa Catarina, Florianópolis – SC, Brasil

nascido em Joaçaba, Santa Catariana, Brasil, possui graduação e mestrado pela Universidade Federal de Santa Catarina, Florianópolis, Brasil, em 2007 e 2009, respectivamente, e doutorado pela Eindhoven University of Technology, Eindhoven, Países Baixos, em 2013, todos em Engenharia Elétrica. Atualmente é professor na Universidade Federal de Santa Catarina, Florianópolis, Brasil. Prof. Gierri é membro da Sociedade Brasileira de Eletrônica de Potência (SOBRAEP).

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