Evaluating the performance of the BTB converter under unbalanced voltage sags

2012 ◽  
Author(s):  
R. Sierra ◽  
J. Alcala ◽  
V. Cardenas ◽  
J. Perez-Ramirez ◽  
A. Rivera
Keyword(s):  
Voltage Sags ◽  
Unbalanced Voltage

Analysis on Power Output Capability and its Power Control Strategy of DFIG Wind Turbine under Unbalanced Grid Voltage

2013 ◽  
Vol 448-453 ◽  
pp. 1819-1824
Author(s):  
Shu Ju Hu ◽  
Ling Ling Wang ◽  
Ya Deng
Keyword(s):  
Power Control ◽  
Wind Turbine ◽  
Control Strategy ◽  
Power Output ◽  
Reactive Power ◽  
Maximum Output ◽  
Voltage Sags ◽  
Active And Reactive Power ◽  
Unbalanced Voltage ◽  
Power Limit

Wind turbines are required by gird codes that active and reactive power should be fed into power grid during gird faults such as voltage sags. Power output capability is important for DFIG wind turbine to provide active and reactive power support. Constraints of stator, rotor maximum current and maximum output voltage of rotor-side converter (RSC) of DFIG are considered to analyze stator power output limit of the DFIG under unbalanced voltage sags, and newton-raphson method is used to solve the power limits, then the power control strategy based on power limit analysis is proposed. Simulation, calculation and comparison are carried out by a 1.5MW DFIG wind turbine model, and the effectiveness of the analysis and the proposed control strategy is verified.

SSC Compensation Capability of Unbalanced Voltage Sags

2005 ◽  
Vol 20 (3) ◽  
pp. 2030-2037 ◽  
Author(s):  
F. Fornari ◽  
R. Procopio ◽  
M.H.J. Bollen
Keyword(s):  
Voltage Sags ◽  
Unbalanced Voltage
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