Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20318
Title: A comprehensive LVRT control strategy for DFIG wind turbines with enhanced reactive power support
Authors: Xie, D
Xu, Z 
Yang, L
Ostergaard, J
Xue, Y
Wong, KP
Keywords: Doubly fed induction generator (DFIG)
Low voltage ride through (LVRT)
Power system fault
Reactive power
Issue Date: 2013
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on power systems, 2013, v. 28, no. 3, 6449334, p. 3302-3310 How to cite?
Journal: IEEE transactions on power systems 
Abstract: 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.
URI: http://hdl.handle.net/10397/20318
ISSN: 0885-8950
EISSN: 1558-0679
DOI: 10.1109/TPWRS.2013.2240707
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