Torque Ripple Minimization of Dual Direct Torque Control of Doubly Fed Induction Machine Using Fuzzy Logic

Abstract

In this paper we present a new approach to improve the performance of the dual direct torque control of the doubly fed induction machine. The proposed dual (DTC) is based on fuzzy logic technique. In this application the stator and rotor windings are supplied by two voltage source inverters, witches are linked to two switching tables in order to define the stator and rotor flux vector control. A fuzzy controller is proposed to improve dual (DTC) performance and reduce significantly torque and flux ripples.
The simulation results illustrate the effectiveness of the proposed control scheme.