Title :
Fault Ride-Through of a DFIG Wind Turbine Using a Dynamic Voltage Restorer During Symmetrical and Asymmetrical Grid Faults
Author :
Wessels, Christian ; Gebhardt, Fabian ; Fuchs, Friedrich W.
Author_Institution :
Inst. for Power Electron. & Electr. Drives, Christian-Albrechts-Univ. of Kiel, Kiel, Germany
fDate :
3/1/2011 12:00:00 AM
Abstract :
The application of a dynamic voltage restorer (DVR) connected to a wind-turbine-driven doubly fed induction generator (DFIG) is investigated. The setup allows the wind turbine system an uninterruptible fault ride-through of voltage dips. The DVR can compensate the faulty line voltage, while the DFIG wind turbine can continue its nominal operation as demanded in actual grid codes. Simulation results for a 2 MW wind turbine and measurement results on a 22 kW laboratory setup are presented, especially for asymmetrical grid faults. They show the effectiveness of the DVR in comparison to the low-voltage ride-through of the DFIG using a crowbar that does not allow continuous reactive power production.
Keywords :
asynchronous generators; power generation faults; power grids; wind turbines; DFIG wind turbine; DVR; asymmetrical grid faults; dynamic voltage restorer; power 2 MW; power 22 kW; uninterruptible fault ride-through; wind-turbine-driven doubly fed induction generator; Circuit faults; Converters; Rotors; Stators; Voltage control; Voltage fluctuations; Wind turbines; Doubly fed induction generator (DFIG); dynamic voltage restorer (DVR); fault ride-through and wind energy;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2010.2099133
