2005•Electric Locomotives & Mass Transit VehiclesRequires access
Direct torque control of induction motor based on space vector modulation
Yibin Tong
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Abstract
A novel direct torque control scheme for induction motor is proposed in this paper. With this scheme, the stator voltage applied in next control cycle is calculated through stator flux linkage error and torque error, and the switching control signal of inverter is realized by space vector modulation. It features in low torque ripple, low flux ripple and fixed switching frequency. Simulation results validate that it's efficient and correct.