Characteristics of a parametric synchronous motor and a parametric induction generator made for test

This paper describes the structure and the operation of two new machines using rotational field based on a parametric oscillation. One of the machines is the parametric synchronous motor using permanent magnet rotor. Another one is the parametric induction generator. These machines have a number of interesting features in construction and operation. The results of this study seem to be useful for development of electrical machines and to introduce a new field for application of the parametric machine in the future.