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金興根,成耆冽,崔協右 慶北大學校 1990 論文集 Vol.49 No.-
This paper describes maximum torque drive of a vector controlled induction motor. As the instantaneous value of the stator current must be controlled to accomplish the superior vector control characteristic, the current controlled PWM transistor inverter with hysteresis controller is adopted. At steady-state, since the developed motor torque is proportional to the product of the flux and torque component, the motor output torque becomes maximum if the two components are equal. The system block diagram is suggested for maximum torque control. The superior characteristic of the proposed system is verified with digital computer simulation.