Caracterização e controle de um motor síncrono a ímãs interiores.

Abstract

This paper discusses the design of an ac motor drive system based on a permanent magnet motor in which the use of low cost ferrites. The geometry of permanent magnet in which the magnets are placed transversely along the rotor radius introducing a high harmonic content of the flux magnet linkage. Various aspects about determination of fundamentals parameters and control system design are discussed. The transient model of machine employ the Park’s model for representing the dynamics of the electromechanical converter, including the harmonics of the magnet flux linkage and the magnet effects in the inductances caused by permanente magnet. A technique for determining the inductive parameters is used, regarding the profile of the phase inductances of the machine based on the application of the locked rotor. The design of controllers for current and speed are also discussed. Simulations and experimental results are presented. The control system shows good results on the load application, reversing speed, minimum speed, rated speed. The machine control system was implemented in a experimental setup developed in the laboratory.