Small Signal Stability Improvement of Power Systems Using Optimal Load Responses in Competitive Electricity Markets

Weihao Hu, Chi Su, Zhe Chen, Birgitte Bak-Jensen

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

2 Citations (Scopus)

Abstract

Since the hourly spot market price is available one day ahead in Denmark, the price could be transferred to the consumers and they may shift some of their loads from high price periods to the low price periods in order to save their energy costs. The optimal load response to an electricity price for demand side management generates different load profiles and may provide an opportunity to improve the small signal stability of power systems with high wind power penetrations. In this paper, the idea of power system small signal stability improvement by using optimal load response to the electricity price is proposed. A 17-bus power system with high wind power penetrations, which resembles the Eastern Danish power system, is chosen as the study case. Simulation results show that the optimal load response to electricity prices is an effective measure to improve the small signal stability of power systems with high wind power penetrations.
Original languageEnglish
Title of host publicationProceedings of the 46th IEEE International Universities’ Power Engineering Conference (UPEC2011)
Number of pages6
PublisherIEEE Press
Publication date2011
ISBN (Print)978-3-8007-3402-3
Publication statusPublished - 2011
Event46th IEEE International Universities’ Power Engineering Conference (UPEC2011) - Soest , Germany
Duration: 5 Sep 20118 Sep 2011

Conference

Conference46th IEEE International Universities’ Power Engineering Conference (UPEC2011)
CountryGermany
CitySoest
Period05/09/201108/09/2011

Keywords

  • Small signal stability
  • Optimal load response
  • Electricity price
  • Electricity market

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