Direct Torque Control for Doubly Fed Induction Machine-Based Wind Turbines Under Voltage Dips and Without Crowbar Protection

2010 ◽  
Vol 25 (2) ◽  
pp. 586-588 ◽  
Author(s):  
G Abad ◽  
M A Rodriguez ◽  
J Poza ◽  
J M Canales
Keyword(s):  
Wind Turbines ◽  
Direct Torque Control ◽  
Induction Machine ◽  
Torque Control ◽  
Voltage Dips ◽  
Doubly Fed Induction Machine ◽  
Doubly Fed ◽  
Crowbar Protection

scholarly journals DIRECT TORQUE CONTROL FOR DOUBLY FED INDUCTION MACHINE-BASED WIND TURBINES UNDER VOLTAGES DIPS AND WITHOUT CROWBAR PROTECTION

2013 ◽  
pp. 56-58
Author(s):  
T. MUNI PRAKASH ◽  
SK. SHAKEER AHHAMAD
Keyword(s):  
Wind Turbine ◽  
Wind Turbines ◽  
Low Voltage ◽  
Direct Torque Control ◽  
Induction Machine ◽  
Torque Control ◽  
Voltage Dips ◽  
Doubly Fed Induction Machine ◽  
Doubly Fed ◽  
Crowbar Protection

This letter proposes a rotor flux amplitude reference generation strategy for doubly fed induction machine based wind turbines. It is specially designed to address perturbations, such as voltage dips, keeping controlled the torque of the wind turbine, and considerably reducing the stator and rotor over currents during faults. In addition, a direct torque control strategy that provides fast dynamic response accompanies the overall control of the wind turbine. Despite the fact that the proposed control does not totally eliminate the necessity of the typical crowbar protection for this kind of turbines, it eliminates the activation of this protection during low voltage dips.

scholarly journals Fuzzy super twisting algorithm dual direct torque control of doubly fed induction machine

2021 ◽  
Vol 11 (5) ◽  
pp. 3782
Author(s):  
Boumaraf Farid ◽  
Boutabba Tarek ◽  
Belkacem Sebti
Keyword(s):  
Fuzzy Logic ◽  
Sliding Mode ◽  
Direct Torque Control ◽  
Induction Machine ◽  
Torque Control ◽  
Doubly Fed Induction Machine ◽  
Signum Function ◽  
Simulation Results ◽  
Doubly Fed ◽  
Twisting Algorithm

<span>This paper proposes the fundamental aspects of hybrid nonlinear control which is composed of the super twisting algorithm (STA) based second order sliding mode control applying fuzzy logic method (FSOSMC), with pertinent simulation results for a doubly fed induction machine (DFIM) drive. To minimize chattering effect phenomenon due to Signum function employed in sliding mode algorithm, a new method is proposed. This technique consists in replacing the signum function by fuzzy switching function in the SOSMC to minimize flux and torque ripples. This FSOSMC is associated to the double direct torque control DDTC of the doubly fed induction machine (DFIM) by combining the advantages of fuzzy logic (FL) and the advantages of super-twisting sliding mode. The FSOSMC-DDTC strategy is compared with a PI-DDTC and SOSMC-DDTC. Simulation results demonstrate good efficiency and excellent robustness of the hybrid nonlinear controller.</span>

Contribution to the Improvement of the Performances of Doubly Fed Induction Machine Functioning in Motor Mode By the DTC Control

2017 ◽  
Vol 8 (3) ◽  
pp. 1117 ◽  
Author(s):  
Najib EL Ouanjli ◽  
Aziz Derouich ◽  
Abdelaziz El Ghzizal ◽  
Youness El Mourabit ◽  
Mohammed Taoussi
Keyword(s):  
Direct Torque Control ◽  
Induction Machine ◽  
Torque Control ◽  
Matlab Simulink ◽  
Motor Mode ◽  
Doubly Fed Induction Machine ◽  
Simulation Results ◽  
Doubly Fed

<p>In this article, we are interested in the improvement of the performances of Doubly Fed Induction Machine (DFIM) operating in motor mode by the use of the direct torque control (DTC). Firstly, we focused on the modeling of the DFIM and the study of the principle of functioning of the DTC control. Then, we implement this control on the Matlab/Simulink environment. Secondly, we present the simulation results of the proposed control. The analysis of these results shows clearly that the system based on the DFIM studied follows perfectly the set points, what allowed us to justify the efficiency of the elaborate control.</p>

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