Direct torque control of machine side multilevel converter for variable speed wind turbines

Energy ◽  
2015 ◽  
Vol 90 ◽  
pp. 1091-1099 ◽  
Author(s):  
Ahmed M. Atallah ◽  
El Sayed F. El Tantawy
Keyword(s):  
Wind Turbines ◽  
Direct Torque Control ◽  
Torque Control ◽  
Variable Speed ◽  
Multilevel Converter

scholarly journals Improvement of direct torque control applied to doubly fed induction motor under variable speed

2020 ◽  
Vol 11 (1) ◽  
pp. 97 ◽  
Author(s):  
Hala Alami Aroussi ◽  
Elmostafa Ziani ◽  
Manale Bouderbala ◽  
Badre Bossoufi
Keyword(s):  
Induction Motor ◽  
Control Method ◽  
Direct Torque Control ◽  
Estimation Method ◽  
Torque Control ◽  
Variable Speed ◽  
Multilevel Inverters ◽  
Hysteresis Controller ◽  
Doubly Fed ◽  
Transient And Steady State

<span>This work is dedicated to the study of an improved direct torque control of the doubly fed induction motor (DFIM). The control method adopts direct torque control 'DTC' because of its various advantages like the ease of implementation which allows a good performance at transient and steady state without PI regulators and rotating coordinate transformations. To do this, the modeling of the motor is performed. Subsequently, an explanation of the said command is spread out as well as the principle of adjusting the flux and the electromagnetic torque according to the desired speed. Then, the estimation method of these two control variables will be presented as well as the adopted switching table of the hysteresis controller model used based on the model of the multilevel inverters. Finally, the robustness of the developed system will be analyzed with validation in Matlab/Simulink environment to illustrate the performance of this control.</span>

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