A simple direct-torque neuro-fuzzy control of PWM-inverter-fed induction motor drive

In this paper, the concept and implementation of a new simple direct-torque neuro-fuzzy control (DTNFC) scheme for pulsewidth-modulation-inverter-fed induction motor drive are presented, An adaptive neuro-fuzzy inference syst em is applied to achieve high-performance decoupled flux and torque control . The theoretical principle and tuning procedure of this method are discuss ed. A 3-kW induction motor experimental system with digital signal processo r TMS 320C31- based controller has been built to verify this approach. The simulation and laboratory experimental results, which illustrate the perfor mance of the proposed scheme, are presented. Also, nomograms for controller design are given, It has been shown that the simple DTNFC is characterized by very fast torque and flux response, very-low-speed operation, and simpl e tuning capability.