Effect of stochastic variation of grid-connected wind generation on power system small-signal probabilistic stability

Wenjuan Du, Siqi Bu, Haifeng Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)

Abstract

The impact of stochastic uncertainty brought about by a grid-connected wind farm penetration on power system small-signal stability was investigated in this paper. An analytical method to carry out the probabilistic analysis was proposed. From the cumulative distribution function of wind speed of the wind farm, the moments and cumulants of the grid-connected wind power generation were calculated. Then the cumulants and central moments of the real-part of the system critical eigenvalues were computed. Finally the cumulative distribution function of real-part of the system critical eigenvalues was reconstructed by using the Gram-Charlier expansion. Thus the small-signal stability of power systems as affected by the grid-connected wind generation was determined.
Original languageEnglish
Pages (from-to)7-11
Number of pages5
JournalZhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
Volume31
Issue numberSUPPL. 1
Publication statusPublished - 1 Jan 2011
Externally publishedYes

Keywords

  • Gram-Charlier expansion
  • Grid-connected wind generation
  • Power systems
  • Small-signal probabilistic stability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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