dSPACE Improved Direct Torque Control of Induction Motor Using Fuzzy Logic Self-Tuning Proportional Integral Regulator For Electric Vehicle Propulsion Chain

Abstract

In this paper, a hybrid intelligent regulator; the fuzzy self-setting PI regulator; is introduced in the regulation chain of the direct torque control to enhance the performances and push out the limits of this drive. The proposed regulator is a new technique to build up a new improved PI regulator with tunable gains by using a fuzzy logic supervisor. Its main attribute is to regulate in real time its gains to exceed the impact of the fluctuations of the stator resistance. The improved direct torque control has been simulated and experimentally implemented. The obtained results showed good dynamic responses of the speed, the torque and the flux, as well as the potential of the fuzzy self-setting PI regulator to dismiss the disturbances.