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The field regulated reluctance machine is perspective for automotive transport electric drives. In this machine, the switching of a stator current is done in function of a rotor position. The massive salient rotor of the electric machine does not contain windings. The stator is fulfilled in the body and iron of serial ac induction motor. The stator winding sections, which conductors lay above between rotor poles intervals, serve as a excitation winding, and others sections, which conductors lay above rotor poles, the role of a armature winding. In most cases, the optimal winding current waveform is distinct from the sine waveform. For a case of use separate current sources for each phase, the ideal is rectangular waveform. At the rotation of the motor, the each stator section winding pass from a zone of “excitation” to a zone of “armature”. The stator has finite number of phases.

The internal combustion engine gradually concedes the positions of traction unit. The electric drive including the electric motor, electro-generator, and diesel installation, comes on its change. The vector pulse control system of the wound rotor induction motor drive can be one of the perspective variants of such electric drive. The speed control of wound rotor induction motor with thyristor converter, assembled on base of three phase bridge circuit, is considered in report. The entrance circuits of the converter are connected to AC generator through motor stator windings, and converter output circuit (on the side of the dc voltage) connected to a two rotor windings connected in series. The third rotor winding can be connected in parallel or remain free. The stator magneto-motive force is created by switching thyristors. Magneto-motive force is rotating discretely with a step of 60 degrees.