Xiang, D. and Ran, L. and Tavner, P. J. and Yang, S. (2006) 'Control of a doubly fed induction generator in a wind turbine during grid fault ride-through.', IEEE transactions on energy conversion., 21 (3). pp. 652-662.
This paper analyzes the ability of a doubly fed induction generator (DFIG) in a wind turbine to ride through a grid fault and the limitations to its performance. The fundamental difficulty for the DFIG in ride-through is the electromotive force (EMF) induced in the machine rotor during the fault, which depends on the dc and negative sequence components in the stator-flux linkage and the rotor speed. The investigation develops a control method to increase the probability of successful grid fault ride-through, given the current and voltage capabilities of the rotor-side converter. A time-domain computer simulation model is developed and laboratory experiments are conducted to verify the model and a control method is proposed. Case studies are then performed on a representatively sized system to define the feasibility regions of successful ride-through for different types of grid faults.
|Keywords:||Current control, Doubly fed induction generator (DFIG), Flux linkage, Grid fault, Power converter, Safe operating area (SOA), Wind energy.|
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|Publisher Web site:||http://dx.doi.org/10.1109/TEC.2006.875783|
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|Record Created:||28 May 2008|
|Last Modified:||09 Aug 2011 17:07|
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