Abstract- In this paper speed control of an Induction Motor
using Indirect Field Oriented C ontrol (IFOC) method has been
developed and simulated. In this work the complete
mathematical model of field oriented controlled Induction Motor
is described and simulated in MA TLAB/SIMULINK. For studies
a 200 HP(150kw) squirrel cage type 1M has been considered. The
comparative study of IFOC and conventional Vlf control of 1M is
done in this work. The IFOC induction motor drive involves
decoupling of the stator current components which produces
torque and flux. It is seen that it provides smooth speed control,
can generate full torque at zero speed and capable of fast
acceleration and deceleration compared to V If control.