A novel type-2 fuzzy logic control of induction motor drive using Scalar Control

This paper presents three PWM techniques, space vector PWM (SVPWM), Bus clamped SVPWM1 (BCSVPWM1) and Bus clamped SVPWM2 (BCSVPWM2), which results in the same average switching frequency for a given sampling time, and speed of induction is control using Scalar Control. SVPWM gives the more rms stator flux ripples in induction motor at 0.76 modulation indices, which gives more ripples in current and torque distortion. The flux performance of the induction motor is improved using three PWM (TPWM) due to twin switching transition with less area of rms stator flux ripple. The PI-control (PIC) doesn´t give the good dynamic performance of the induction motor drive using two level Voltage Source Inverter due to sudden changes in the load or speed. Further to improve dynamic performance in the torque and Flux of induction motor drive is simulated using type-2 fuzzy logic control (TP2FLC) in place of PIC because; TP2FLC is effectively dealing with uncertainties, and simulation results of speed, torque, flux and stator current of induction motor is compare with PIC of SVPWM and TPWM.