Abstract - This paper presents the speed control scheme ofindirect vector controlled induction motor (IM) drive.
Voltagesource inverter type space vector pulse width modulation(SVPWM) is used for PWM controlling scheme.
An intelligentbased on Fuzzy PI controller is developed for controlling thetorque component Iq current of an IM.
The complete vector control scheme of the IM drive incorporating the FLC is experimentally implemented using a digital signal Peripheral
Interface Controller dsPIC 30F4011 for the laboratory 1-hp squirrel-cage IM.
The performances of the proposed FLC-based IM drive are investigated and compared to those obtained from the conventional proportional-integral (PI) controller-based drive both simulated and experimentally at
different dynamic operating conditions such as step change in command speed and load change. The comparative results
show that the FLC is more robust, found to be a suitable replacement of the conventional PI controller for the
high-performance industrial drive applications.