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

Volume

26

Issue

3

fYear

2011

fDate

3/1/2011 12:00:00 AM

Firstpage

807

Lastpage

815

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;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2010.2099133

Filename

5665777