Journal article
A Comprehensive LVRT Control Strategy for DFIG Wind Turbines With Enhanced Reactive Power Support
Hong Kong Polytechnic University1
Xi'an Jiaotong University2
Department of Electrical Engineering, Technical University of Denmark3
Center for Electric Power and Energy, Centers, Technical University of Denmark4
State Grid Electric Power System Research Institute5
University of Western Australia6
The paper presents a new control strategy to enhance the ability of reactive power support of a doubly fed induction generator (DFIG) based wind turbine during serious voltage dips. The proposed strategy is an advanced low voltage ride through (LVRT) control scheme, with which a part of the captured wind energy during grid faults is stored temporarily in the rotor's inertia energy and the remaining energy is available to the grid while the DC-link voltage and rotor current are kept below the dangerous levels.
After grid fault clearance, the control strategy ensures smooth release of the rotor's excessive inertia energy into the grid. Based on these designs, the DFIG's reactive power capacity on the stator and the grid side converter is handled carefully to satisfy the new grid code requirements strictly.
Simulation studies are presented and discussed.
Language: | English |
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Publisher: | IEEE |
Year: | 2013 |
Pages: | 3302-3310 |
ISSN: | 15580679 and 08858950 |
Types: | Journal article |
DOI: | 10.1109/TPWRS.2013.2240707 |
ORCIDs: | Østergaard, Jacob |