Partida própria em motor síncrono de ímãs permanentes utilizando rotor com núcleo envolvido por tubo de alumínio

Abstract

This work proposes the construction of a permanent magnet synchronous motor that when connected directly to the frequency of the power grid is capable of starting itself, due to the structure of its rotor, which is composed of a conductor, paramagnetic material encasing the ferromagnetic core. The proposed method makes it possible to dispense with the use of conventional starting methods for synchronous motors, such as variable frequency drives, squirrel-cage rotor or external motor dedicated to the start-up. The method proved to be efficient in generating torque during the start-up, so that the motor gets in sync.