A simulation method of direct torque control system of induction motor is presented, based on MATLAB. After discussing the configuration and working style of the direct torque control system, a simulation method, which is able to analyze the characteristic of the whole system, is proposed, based on the simulation environment and various blocksets provided by MATLAB. This includes realizing the simulation of the power system using the Power System Blockset, realizing various complex control methods using user-defined S-FUNCTION, and building the model of the direct torque control system in the SIMULINK environment using blocks provided by SIMULINK. An example of simulation is given at the end of this paper, which proves the validity, feasibility and facility of the proposed method.
Thomag G Habetler, Francesco Profumo. Direct torque control of induction machines using space vector modulation[J].IEEE Trans Industry Applications.1992, 28(5):1045-1052
Giovanni Griva, Thomas G Habetler, Francesco Profumo. Performance evaluation of a direct torque controlled drive in the continuous PWM-Square wave transition region[J].IEEE Trans Power Electron.1995,10(4):464-471
Jih-ShengLai�� Power electronics system modeling and simulation .In:IEEE Workshop on Computers in Power Electronics ,1994.45~55��