NDLI: Forced Oscillations in Wind Energy Generation Systems

Content Provider	IEEE Xplore Digital Library
Author	Zhen Li Siu-Chung Wong Tse, C.K.
Copyright Year	2009
Abstract	Use of the doubly fed induction generator (DFIG) in wind energy generation systems allows variable speed operation by using partially rated back-to-back quadruple active and reactive power PWM converters. The control of the system is very complex. Despite numerous new control schemes reported in the literature, these control techniques, which are designed to solve some particular control problems, have rarely been tested for general stability problems systematically. Specifically, nonlinear stability analysis of the system has not been reported before. In this paper, we use a commonly used control scheme to study the system stability in terms of the oscillatory magnitude of the voltage link capacitor of the system under unbalanced grid voltage. An important variation parameter, frequency of the unbalanced grid voltage, is used in this paper. Stability diagrams is collected using the voltage of the link capacitor of the back-to-back PWM power converters, exposing the possibility of chaotic behavior of the wind generation system. This paper thus plays the role of characterizing wind energy generation systems using nonlinear stability analysis.
Starting Page	98
Ending Page	102
File Size	855622
Page Count	5
File Format	PDF
ISBN	9780769538532
DOI	10.1109/IWCFTA.2009.28
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	System testing Stability Induction generators Capacitors Control systems Stability analysis Wind energy generation system Wind energy generation Reactive power Pulse width modulation converters Voltage-controlled oscillators Forced oscillation Voltage
Content Type	Text
Resource Type	Article

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