Forced oscillations in wind energy generation systems

Zhen Li, Siu Chung Wong, Chi Kong Tse

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

6 Citations (Scopus)

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.
Original languageEnglish
Title of host publication2009 International Workshop on Chaos-Fractals Theories and Applications, IWCFTA 2009
Pages98-102
Number of pages5
DOIs
Publication statusPublished - 1 Dec 2009
Event2009 International Workshop on Chaos-Fractals Theories and Applications, IWCFTA 2009 - Shenyang, China
Duration: 6 Nov 20098 Nov 2009

Conference

Conference2009 International Workshop on Chaos-Fractals Theories and Applications, IWCFTA 2009
Country/TerritoryChina
CityShenyang
Period6/11/098/11/09

Keywords

  • Forced oscillation
  • Stability
  • Wind energy generation system

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Science Applications
  • Theoretical Computer Science

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