NDLI: Direct Power Control of Doubly-Fed-Induction-Generator-Based Wind Turbines Under Unbalanced Grid Voltage

Content Provider	IEEE Xplore Digital Library
Author	Abad, G. Rodriguez, M.A. Iwanski, G. Poza, J.
Copyright Year	1986
Abstract	In this paper, the behavior of a doubly fed induction generator (DFIG) is studied under unbalanced grid voltage conditions. It is shown that if no special control efforts are employed, the behavior of the generator is deteriorated, basically due to two reasons: electromagnetic torque oscillations and nonsinusoidal current exchange with the grid. These phenomena are first analyzed theoretically as a function of the stator active and reactive instantaneous power exchange by the stator of the DFIG and the grid-side converter (GSC). This analysis provides the main ideas for generation of the active and reactive power references for the rotor-side converter (RSC) and the GSC, controlled by means of direct power control techniques. Therefore, this paper proposes a new algorithm that generates the RSC power references, without the necessity of a sequence component extraction, in order to eliminate torque oscillations and achieve sinusoidal stator currents exchange. On the contrary, the GSC power references are provided by means of voltage and current sequence extraction. Finally, simulation and experimental results successfully validate the proposed power reference generation methods.
Sponsorship	IEEE Power Electronics Society
Starting Page	442
Ending Page	452
Page Count	11
File Size	1944051
File Format	PDF
ISSN	08858993
Volume Number	25
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power control Wind turbines Stators Power generation Induction generators Voltage Torque control Mesh generation Wind energy generation Power markets unbalanced voltage Doubly fed induction generator (DFIG) direct power control (DPC)
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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