Determinação das capacitâncias fuga em motores de indução através do método de elementos finitos

Detalhes bibliográficos
Ano de defesa: 2011
Autor(a) principal: Chaves, Camilla de Sousa
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Uberlândia
BR
Programa de Pós-graduação em Engenharia Elétrica
Engenharias
UFU
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
ATP
Link de acesso: https://repositorio.ufu.br/handle/123456789/14459
Resumo: Purpose: to present a method, based in finite elements technique, to estimate leakage capacitances on induction motors for common mode studies. Material and Method: It was used the software FEMM (Finite Element Method Magnetics) to do the leakage capacitances computation through its geometric representation. In consequence, it was used some WEG induction motors to take the capacitances and to present a methodology of motor representation in FEMM. Moreover, it was necessary to analyze how the input parameters on FEMM affect the final results and how they interfere on the common-mode studies. Due to the impossibility of taking some leakage capacitances, it was used analytical formulations to calculate the capacitances and validate the methodology developed in this work. Results: after comparing the obtained values in FEMM with the measurements and analytical calculations, it was possible to verify the method effectiveness, being also highlighted with a study of the common-mode currents behavior. Conclusions: the finite elements method is a powerful tool to predict induction motor parameters to the common-mode study, being a valid alternative and sometimes more effective than the traditional method of measurements and calculation.