Dynamic Security Assessment of Western Danish Power System Based on Ensemble Decision Trees

Chengxi Liu, Claus Leth Bak, Zhe Chen, Per Lund

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

1 Citation (Scopus)
650 Downloads (Pure)

Abstract

With the increasing penetration of renewable energy resources and other forms of dispersed generation, more and more uncertainties will be brought to the dynamic security assessment (DSA) of power systems. This paper proposes an approach that uses ensemble decision trees (EDT) for online DSA. Fed with online wide-area measurement data, it is capable of not only predicting the security states of current operating conditions (OC) with high accuracy, but also indicating the confidence of the security states 1 minute ahead of the real time by an outlier identification method. The results of EDT together with outlier identification show high accuracy in the presence of variance and uncertainties due to wind power generation and other dispersed generation units.
The performance of this approach is demonstrated on the operational model of western Danish power system with the scale of around 200 lines and 400 buses.
Original languageEnglish
Title of host publicationProceedings of the 12th International Conference on Developments in Power System Protection, DPSP 2014
Number of pages6
PublisherInstitution of Engineering and Technology
Publication dateMar 2014
Pages1-6
ISBN (Print)978-1-84919-834-9
DOIs
Publication statusPublished - Mar 2014
Event12th International Conference on Developments in Power System Protection, DPSP 2014 - Copenhagen, Denmark
Duration: 31 Mar 20143 Apr 2014

Conference

Conference12th International Conference on Developments in Power System Protection, DPSP 2014
Country/TerritoryDenmark
CityCopenhagen
Period31/03/201403/04/2014

Keywords

  • Dispersed generation
  • Dynamic security assessment
  • Ensemble decision trees
  • Wide-area measurement

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