A Study on Induction Motor Drives by the Direct Torque Control Technique

직접토크 제어방식을 이용한 유도전동기 구동에 관한 연구

Direct Torque Control method for an Induction Motor is presented which is quite different from field-oriented control. It carries out a precise and quick control of the stator flux and electromagnetic torque of an IM without calling for coordinate transformation, speed measurement, and stator current control. In principle, moreover, DTC operation requires only the knowledge of the stator resistance.