Use of supplementary rotor current control in DFIG to augment fault ride through of wind farm as per grid requirement
作者： K.E. Okedu , S. M. Muyeen , R. Takahashi , J. Tamura
DOI: 10.1109/IECON.2011.6119555
关键词: AC power 、 Engineering 、 Control theory 、 Steam turbine 、 Induction generator 、 Fault (power engineering) 、 Permanent magnet synchronous generator 、 Grid 、 Machine control 、 Rotor (electric)
摘要: Fixed speed wind turbine generator system that uses induction (IG) has the stability problem similar to step-out phenomenon of a synchronous during grid fault. On other hand, doubly fed (DFIG) can control its real and reactive powers independently while being operated in variable mode. This paper proposes new strategy using DFIGs for stabilizing farms composed IGs, without incorporating additional FACTS devices. A scheme limiting rotor current fault was proposed. Simulation analysis by PSCAD/EMTDC shows effectively stabilize IGs hence entire through proposed providing sufficient power system.
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