Implementation of Indirect Vector Control of Induction Motor Speed using Fuzzy Controller

Abstract

Induction motors are commonly used in today's industry because of its variable speed applications. Even though it was considered that the control of speed of induction motor is not feasible beyond a range, with advent of technology variable speed drives were developed. Earlier stage controllers were P and their derived controllers. The term fuzzy means vagueness. So the fuzzy controller implemented for speed control takes into the vague values in the system and provides a steady control for the smooth working of the system. The use of these controllers helps in solving the unknown parameters problems and provides an efficient speed control of induction motors compared to its non-intelligent counter parts.  The unknown parameter variations in motor, causing losses, chattering of torque etc. can be accounted for in the AI controllers.