Browse Publications Technical Papers 2010-01-0703
2010-04-12

Pulse Vector Control of Wound Rotor Induction Motor 2010-01-0703

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. The calculated and experimental mechanical and electromechanical characteristics of the electric drive indicate an opportunity to receive speeds from zero to the synchronous and above. The circuit allows to make start of induction and synchronous electric motors up to synchronous speed at small (from 1.0 to 1.5 nominal) starting currents. The circuit provides pooling the motor in the synchronism.

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