Torque ripple minimization in direct torque control of induction motor using fuzzy technique

Abstract

In this paper presents the new approach of DTC by Fuzzy technique to reduce the torque ripples. It consists of Induction Motors and a Three-Level IGBT inverter with the fuzzy based PI controller. Thus the fuzzy control should need the efficient possible rules. Fuzzy based controllers develop a control signal which yields on the firing of the rule base, these rules are fired which is random in nature and the rule for speed regulation. This becomes an integrated method of approach for the control purposes and achieves the reduction of torque ripple. The simulation results presented in this paper show the effectiveness of the method developed and has got faster response time or settling times.