Quantitative feedback theory based robust speed control of vector controlled induction motor

In this research paper a method for the robust speed control of Indirect Field orient controlled induction motor (IM) is proposed. The quantitative feedback theory (QFT) in implemented to design controller order achieve desired performance closed loop system presence uncertainties and parameter variations. work QFT based designed simplified model IM. worst case all possible variations are taken into consideration. IM with developed simulated using MATLAB/Simulink results analyzed compared conventional proportional integral derivative (PID) controller. time domain frequency analysis both controllers were conducted compared. A study on nature electromagnetic torque signal also included justify effectiveness proposed simulation verify superior PID