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

Abstract

This work addresses the dynamic modeling and the drive of a multiphase YASA-type electric machine for use within electric traction. The main technical aspects of the machine, which can be fed with three or five phases depending on the electrical connection of its windings, are presented. The dynamic model of the machine for the two different electrical connections (three or five phases) is given in the synchronous reference frame and the parameters of the lumped model are obtained through experimental tests. In order to consider the vehicular application, standard driving cycles are used to serve as a reference for the speed whereas vehicular dynamics are considered to define the load torque to be developed by the machine. Afterward, field orientation control (FOC) is implemented for the machine to operate with three or five phases and simulations were carried out to show that the dynamic behavior is similar in both cases. Experimental tests validated the model and the FOC for the machine with both electrical connections. In addition, the reference curves of the driving cycle were satisfactorily followed, indicating the possibility of using the multiphase YASA machine with the control developed in vehicular traction applications.