Optimized dispatch of wind farms with power control capability for power system restoration

Yunyun Xie, Changsheng Liu, Qiuwei Wu, Kairong Li, Qian Zhou, Minghui Yin

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Abstract

As the power control technology of wind farms develops, the output power of wind farms can be constant, which makes it possible for wind farms to participate in power system restoration. However, due to the uncertainty of wind energy, the actual output power can’t reach a constant dispatch power in all time intervals, resulting in uncertain power sags which may induce the frequency of the system being restored to go outside the security limits. Therefore, it is necessary to optimize the dispatch of wind farms participating in power system restoration. Considering that the probability distribution function (PDF) of transient power sags is hard to obtain, a robust optimization model is proposed in this paper, which can maximize the output power of wind farms participating in power system restoration. Simulation results demonstrate that the security constraints of the restored system can be kept within security limits when wind farm dispatch is optimized by the proposed method.
Original languageEnglish
JournalJournal of Modern Power Systems and Clean Energy
Volume5
Issue number6
Pages (from-to)908-916
Number of pages9
ISSN2196-5625
DOIs
Publication statusPublished - 2017

Bibliographical note

© The Author(s) 2017. This article is an open access publication

Keywords

  • Blackout
  • Dispatch optimization of wind farm
  • Power control of wind farm
  • System restoration
  • Uncertainty of wind energy

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