D.Santhosh kumar, G.Jayanthi mala
In this paper, presents a new approach that minimizes copper and iron losses and optimizes the efficiency of a induction motor drives. This method is based on a simple induction motor indirect field oriented control model includes various losses uses only conventional IM parameters. The efficiency maximization can be obtained by design PID controller. The proposed methods of computing Proportional, Integral and Derivative (PID) parameters controller for indirect vector control of induction motor. To calculate the PID parameter for each loop control and it can improve the efficiency of the three phase induction motor. Simulation results show robustness of the proposed method to system parameters variations.