Dynamic analysis of a variable speed wind turbine equipped with a voltage source AC/DC/AC converter interface and a reactive current control loop

2005 ◽  
Author(s):  
F.D. Kanellos ◽  
S.A. Papathanassiou ◽  
N.D. Hatziargyriou
Keyword(s):  
Dynamic Analysis ◽  
Wind Turbine ◽  
Current Control ◽  
Voltage Source ◽  
Variable Speed ◽  
Control Loop ◽  
Variable Speed Wind Turbine ◽  
Reactive Current

scholarly journals Control model design to limit DC-link voltage during grid fault in a dfig variable speed wind turbine

2017 ◽  
Vol 68 (4) ◽  
pp. 274-281
Author(s):  
Cajethan M. Nwosu ◽  
Cosmas U. Ogbuka ◽  
Stephen E. Oti
Keyword(s):  
Wind Turbine ◽  
Control Model ◽  
Current Control ◽  
Loop Current ◽  
Model Design ◽  
Variable Speed ◽  
Power Circuit ◽  
Fault Ride Through ◽  
Variable Speed Wind Turbine ◽  
Speed Mode

AbstractThis paper presents a control model design capable of inhibiting the phenomenal rise in the DC-link voltage during grid- fault condition in a variable speed wind turbine. Against the use of power circuit protection strategies with inherent limitations in fault ride-through capability, a control circuit algorithm capable of limiting the DC-link voltage rise which in turn bears dynamics that has direct influence on the characteristics of the rotor voltage especially during grid faults is here proposed. The model results so obtained compare favorably with the simulation results as obtained in a MATLAB/SIMULINK environment. The generated model may therefore be used to predict near accurately the nature of DC-link voltage variations during fault given some factors which include speed and speed mode of operation, the value of damping resistor relative to half the product of inner loop current control bandwidth and the filter inductance.

Sign in / Sign up

Export Citation Format

Share Document