Dependence of performance of variable speed wind turbines on the turbulence, dynamics and control

1990 ◽  
Vol 137 (6) ◽  
pp. 403 ◽  
Author(s):  
W.E. Leithead
Keyword(s):  
Wind Turbines ◽  
Variable Speed ◽  
Dynamics And Control ◽  
And Control

Modelling and control of synchronous generators for wide-range variable-speed wind turbines

Wind Energy ◽  
2007 ◽  
Vol 10 (3) ◽  
pp. 231-246 ◽  
Author(s):  
Gnanasambandapillai Ramtharan ◽  
Nicholas Jenkins ◽  
Olimpo Anaya-Lara
Keyword(s):  
Wind Turbines ◽  
Variable Speed ◽  
Synchronous Generators ◽  
Wide Range ◽  
And Control

Modelling and control of variable speed wind turbines for power system studies

Wind Energy ◽  
2010 ◽  
Vol 13 (4) ◽  
pp. 307-322 ◽  
Author(s):  
Gabriele Michalke ◽  
Anca D. Hansen
Keyword(s):  
Power System ◽  
Wind Turbines ◽  
Variable Speed ◽  
And Control

Full-Load Converter Connected Asynchronous Generators for MW Class Wind Turbines

2005 ◽  
Vol 29 (4) ◽  
pp. 341-351 ◽  
Author(s):  
Vladislav Akhmatov
Keyword(s):  
Wind Turbines ◽  
Short Circuit ◽  
Wind Farms ◽  
Variable Speed ◽  
Full Load ◽  
Frequency Converters ◽  
Fault Ride Through ◽  
System Operator ◽  
And Control ◽  
Large Wind

Wind turbines equipped with full-load converter-connected asynchronous generators are a known concept. These have rating up to hundreds of kW and are a feasible concept for MW class wind turbines and may have advantages when compared to conventional wind turbines with directly connected generators.* The concept requires the use of full-scale frequency converters, but the mechanical gearbox is smaller than in conventional wind turbines of the same rating. Application of smaller gearbox may reduce the no-load losses in the wind turbines, which is why such wind turbines with converter connected generators may start operation at a smaller wind speed. Wind turbines equipped with such converted connected asynchronous generators are pitch-controlled and variable-speed. This allows better performance and control. The converter control may be applied to support the grid voltage at short-circuit faults and to improve the fault-ride-through capability of the wind turbines, which makes the concepts relevant for large wind farms. The Danish transmission system operator Energinet-DK has implemented the general model of wind turbines equipped with converter connected asynchronous generators with the simulation tool Powerfactory (DlgSilent). The article presents Energinet-DK's experience of modeling this feasible wind turbine concept.

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