Speed and flux control of an induction motor using the V/F method based on the fuzzy PI technique

Today, induction motors are widely used in the industry. They have a simple, robust structure, high efficiency, good power, and self-starting torque. For these reasons, they are preferable motors in factory applications and processes. The value of the magnetic Flux must always be kept constant while controlling the induction motor`s Speed. For this purpose, different methods can be used. The Scalar V/f control system provides a simple and practical way to control the speed of the induction motor. In this thesis, work is done to improve the performance of the Scalar V/f control system by regulating the motor speed and maintaining the value of the magnetic Flux at the nominal value. The simulation results in Matlab-Simulink showed the effectiveness of the proposed method and the ability of the control system to provide high performance in regulating the motor speed while maintaining a constant value of the magnetic Flux, which contributes to increasing the motor efficiency and reducing losses.