Study of a Smooth-Rotor Synchronous Machine by the Method of Poynting Vector.

The analytic treatment developed makes possible a thorough investigation of energy exchanges which take place between the various parts of the machine, and between the latter and the network. The study makes it possible moreover to locate the direction of electromagnetic energy movements by which exchanges take place and the part played in them by the various components of the electromagnetic field. Lastly, Ohm's law is written for a stator phase which in the classical theory forms one of the internal equations of the starting machine.