Abstract
The purpose of this paper is to study the effect of incorporating a dc exciting winding on the stator of a reluctance machine which also carries the phase windings. From the normal analysis of a generalized model of a rotating machine, it is possible to conclude that two types of synchronous machines are possible: 1) when the periodicities of the stator phase and field windings are the same and their sum equals the number of salient members of the rotor (similar to a salient pole machine) and 2) when the periodicities of the phase and field windings are not the same but their sum equals the number of salient members of the rotor. The electrical behavior is similar to that of a cylindrical rotor machine. The two types will be designated as nonuniform reluctance machine and uniform reluctance machine, respectively.
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