Estudo sobre o circuito equivalente da máquina de indução trifásica

• Autor(a) principal: Silva, Andersom Gomes de Moura e
• Data de Publicação: 2018
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tede/9231
• topic: Análise harmônica; Circuito equivalente; Efeito pelicular; Motor de indução; Torque; Equivalent circuit; Harmonic analysis; Induction motor; Skin effect; ENGENHARIA ELETRICA::CIRCUITOS ELETRICOS, MAGNETICOS E ELETRONICOS

This paper presents a historical equivalent circuit of the three-phase induction machine, including the modern approach, the theory of the axes and the model in steady state. Also presented is an analysis that observes the consequent effects of the variation of the rotor resistance and the reactances of the stator and the rotor in several models of the equivalent circuit. A methodology is proposed for the determination of equivalent circuit parameters in order to represent the effect of harmonic components of the air gap magnetomotive force. The inclusion of the skin effect is discussed and it is proposed that inclusion of the equivalent circuit in which there is a representation of the harmonic effects. Is proposed equivalent circuits for solving the problem and computing the parameters and torque are illustrated. From this methodology a second analysis of the circuit is made by varying the same parameters of the first analysis. Two examples of engines are used to illustrate and validate the methodology and its analysis.