The Development of a New Type of Repulsion-Induction Motor

Abstract

This paper deals with the development of a new type of repulsion-start induction motor for application to single-phase distribution networks. A description is given of the derivation of this new type of motor from the plain repulsion motor. The novel feature lies in the using of the D.C. brush commutator principle to realize an A.C. brushless commutator which allows to obtain a pseudo-stationary winding and has, in the same time, the role of induction motor squirrel cage. The changing over from the repulsion to the induction type is accomplished without the use of any devices, this change tacking place due to the inherent qualities of the new motor. According to the developed new motor's topology, an experimental model has been built and the results of some experimental investigations are given.