Badre BOSSOUFI, Najib EL OUANJLI, Ali CHEBABHI, Abdelaziz EL GHZIZAL, Aziz DEROUICH, Mohammed TAOUSSI

High Performance Direct Torque Control of Doubly Fed Induction Motor using Fuzzy Logic

Direct torque control (DTC) of Doubly Fed Induction Machine (DFIM) has large torque ripplesand inconstant switching frequency, especially at low speed. This paper proposes an enhancedDTC method based on fuzzy logic technique. In order to improve the drawbacks of thisconventional DTC and overcome the robustness problems against parametric variations of theDFIM, the switching tables and conventional PI regulator of speed are elaborated by thereasoning of fuzzy logic. A very detailed analysis of simulation results of the system inMatlab/Simulink environment is performed to the regarding to speed variation, referencetracking and robustness against system parameters variations. These results show the efficiencyand robustness of this fuzzy logic controller for enhancing the performance of the DTC controlof DFIM.

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