This paper proposes a novel variable flux reluctance motor without DC-field coils. The stator of this motor has only armature coils. The proposed motor can control the torque-speed characteristics by increasing or decreasing the field voltage that is superimposed on the armature currents. In this paper, the operational principle of the motor is described, and the N-T characteristics are computed by finite element analysis under vector control. In addition, the N-T characteristics are compared with a conventional variable flux reluctance machine with armature and DC-field coils.