International Journal of Engineering and Technology

This paper presents an analysis method for achieving control torque and speed with indirect field oriented control for asynchronous motors, by the three-axis to two-axis current transformation. But the drive performance often degrades for the machine parameter variations. The aim is to apply two techniques for controlling independently the induction machines; the performance of this system is tested and compared by simulation in terms of reference tracking. A PI controller is used to control the rotor speed of the induction machine and a hysteresis current controller is applied for controlling the output voltage of the PWM inverter. To achieve desired speed and torque performance, these two models controls are implemented in Matlab Simulink.