Máquina síncrona auto pilotada alimentada por fonte de corrente: estudo em regime permanente; realização.

Abstract

The machines c.a. have been the subject of greater attention and efforts in the sense of their use in variable speed applications, through the use of static converters. Among the several possibilities available, there is a system consisting of a synchronous machine driven by a current-fed inverter, and the inverter control is carried out by detecting the position of the rotor (autopilogatem). This system exhibits features similar to those of a c.c. with separate excitation. In this work a brief description of the general principles of operation of one of these systems is made, and a simplified study is developed, using a phasor method, which takes into account, roughly, the effects of switching, armature reaction and saturation , in order to analyze the behavior of the system in steady state. Also presented are the various components that are part of a laboratory assembly and the theoretical and experimental results obtained from this system.