The Study Of The Direct Torque Control System In Induction Motor

The dissertation deals in details with the basic principle of direct torque control. According to the faults of traditional direct torque control and the requirement of an induction motor's control strategy change the method of regulating stator flux to make its path approximate to a circle as possible as could. To get quickly torque control, use a three-value regulator. With the practical experience and the control technology I designed the control system circuit and according to the requirements of the aviation motor I designed the trigger circuit of the inverter .To demonstrate the validity of the induction motor's direct torque control system, some experiments with SIMULINK of MATLAB are given. The results of computer simulations reveal that the method is available.