A robust coordinated control of the doubly-fed induction machine for wind turbines: a state-space based approach

2004 ◽  
Author(s):  
B. Marinescu
Keyword(s):  
State Space ◽  
Wind Turbines ◽  
Induction Machine ◽  
Coordinated Control ◽  
Doubly Fed Induction Machine ◽  
Doubly Fed

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.

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