Indirect vector control of induction motor with hybrid controllers

In this book implementation of unified intelligent controller methods for voltage controlled PWM driven three phase Induction Motor drive system has been developed and analyzed in detail. The classical approach of manipulating speed controllers for vector control of an induction motor creates many problems like instability, rise time and settling time during load disturbances. In this paper fuzzy plus PI and self tuning of PI plus fuzzy hybrid controllers are used. To decrease rise time and settling time these controllers are designed in Matlab/Simulink and used for a 5 HP, 3 Phase cage type Induction motor. Hybrid controllers perform well and gives better response when compared with classical controller. The simulation was carried out with the help of SIMULINK & MATLAB and the results were found to be in accordance with theory.