A simplified modeling of induction motor drives with direct torque control

For calculation of the steady-state and dynamic characteristics of the electrical drives with induction motors and voltage source inverters, that have the control systems, in which the method of the motor torque direct control is utilized, a simple discrete model is proposed. Employment of this model gives an essential computation time saving with keeping of a good accuracy of results. The results of computation of the electrical drive characteristics, that are received both by simulation of the full drive equations and by using of the proposed simple model are given. These results show the validity of the proposed model