Abstract
This article present a novel direct torque control (DTC) scheme using high order sliding mode (HOSM) and fuzzy logic of a doubly fed induction generator (DFIG) incorporated in a wind turbine system. Conventional direct torque control strategy (C-DTC) using hysteresis controllers presents considerable flux and torque undulations at steady state period. In order to ensure a robust DTC method for the DFIG-rotor side converter and reduce flux and torque ripples, a second order sliding mode (SOSM) technique based on super twisting algorithm and fuzzy logic is used in this paper. Simulation results show the efficiency of the proposed method of control especially on the quality of the provided power comparatively to a C-DTC.
Highlights
Among all kinds of renewable energy sources that are being developed recently in the world, wind energy source is the fastest growing one [1]
In the aim to design an advanced direct torque control (DTC) with very small torque and flux undulations and without chattering effect, in our article we suggest to employ a new DTC scheme based on second order sliding mode (SOSM) and fuzzy logic functions for a doubly fed induction generator (DFIG)-based wind turbine
Conventional direct torque control strategy (C-DTC), SOSM-DTC and FSOSMC are evaluated by simulations regarding tracking performances, total harmonic
Summary
Abstract—This article present a novel direct torque control (DTC) scheme using high order sliding mode (HOSM) and fuzzy logic of a doubly fed induction generator (DFIG) incorporated in a wind turbine system. Conventional direct torque control strategy (C-DTC) using hysteresis controllers presents considerable flux and torque undulations at steady state period. In order to ensure a robust DTC method for the DFIG-rotor side converter and reduce flux and torque ripples, a second order sliding mode (SOSM) technique based on super twisting algorithm and fuzzy logic is used in this paper. Simulation results show the efficiency of the proposed method of control especially on the quality of the provided power comparatively to a C-DTC
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