JDP_V1_N1_RP4 Sasikumar C. C. Muniraj Journal on Digital Signal Processing 2322–0368 1 1 29 36 VSI Inverter, MATLAB, and Induction Motor Induction motor plays a vital role in engineering and industry. Induction motor offer a convenient means for controlling the operation of different equipment used in industry. Induction motor input supply will give from the voltage source inverter for its speed control purpose. If we connect induction motor directly to the AC supply its speed control will not applicable, so that we go inverter fed induction motor speed control. Vector control can controls the independent control of flux and torque in the induction motor. By adjusting gate pulse through vector control for vary speed of induction motor. fuzzy flatness based control is applied in the speed controller of induction motor. This method gives better efficiency of induction motor speed control. Fuzzy flatness controller method for induction motor gives better performance and reduces tracking error and reduces the torque ripple. January - March 2013 Copyright © 2013 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=2201