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Fuzzy Tuned PI Controller Based V/F Control of Induction Motor



Fuzzy Tuned PI Controller Based V/F Control of Induction Motor


This video presents the need for Speed Control in Induction Motors. Out of the various methods of controlling Induction motors, V/f Control has proven to be the most versatile. The overall scheme of implementing V/f control has been presented. One of the basic requirements of this scheme is the PWM Inverter. In this, PWM Inverters have been modeled and their outputs fed to the Induction Motor drives. The uncontrolled transient and steady-state response of the Induction Motor has been obtained and analyzed. A MATLAB code was developed to successfully implement Open Loop V/f Control on a PWM-Inverter fed 3-phase Induction Motor, and the speed was found to be not constant for various loading conditions. This was followed by a MATLAB model for Closed-Loop V/f Control on a PWM-Inverter fed 3-phase Induction Motor. It was observed that using a Closed-Loop scheme with Fuzzy Tuned Proportional Controller gave a very superior way of controlling the speed of an Induction motor while maintaining constant maximum torque.

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