With joint progress of the industrial electronics and technology it is possible to design more efficient control circuit for motors and high dynamic performance can be obtain from the induction machine. Induction machines are the basic building block to design a electrical drive system which are widely used in many industrial applications. Due to their low cost and maintenance the induction machines are preferred over DC machines. In the conventional methods of speed control there was power

more »

... s in the system these power lose can be minimize by the use of power electronics control strategy in the system. In this paper report thyristor based control of induction machine for two-phase and three-phase system is describe and model was simulated in the MATLAB simulation. The speed was controlled using the various types of bridge circuit. The variation in speed and torque behaviour of the motor is shown in the result section. In this the voltage and current source are ideal there may be some variation in the output for practical implementation of the system. This may occur due to the input-output behaviour of the equipments, other physical and electrical parameter variation.