Bifurcation behavior of wind energy generation systems

Zhen Li, Siu Chung Wong, Chi Kong Tse, Grace Chu

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

2 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 PWMconverters. Although many control schemes have been reported in the literature to address some specific control problems, few has considered the general stability of the entire system. Specifically, bifurcation analysis of the system has not been reported so far. Lowfrequency oscillation has been found in a practical power grid system with the wind farm being connected to single-phase constant power loads. In this paper, the rotor speed of the DFIG is used as a variation parameter for bifurcation analysis. Bifurcation diagram of the voltage link capacitor clearly indicates the instability phenomenon of the practical DFIG system in supersynchronous operation when unbalanced single-phase constant power loads are connected to the connecting grid.
Original languageEnglish
Title of host publication2nd International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2010
Pages200-203
Number of pages4
DOIs
Publication statusPublished - 17 Sep 2010
Event2nd International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2010 - Hefei, China
Duration: 16 Jun 201018 Jun 2010

Conference

Conference2nd International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2010
CountryChina
CityHefei
Period16/06/1018/06/10

Keywords

  • Doubly fed induction generator
  • Forced oscillation
  • Hopf bifurcation
  • Stability.
  • Wind energy generation system

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this