Analysis of angular threshold criteria for transient instability identification in uncertain power systems

Juan D. Morales, Jovica V. Milanović, Panagiotis N. Papadopoulos

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Abstract

This paper addresses the problem of finding a threshold (critical value of rotor angle) for the identification of transient instability by the sole use of the information on rotor angles. Several threshold values for rotor angles have been used in the past without a clear agreement on a standard value. In this paper a probabilistic approach to the problem is proposed, so that for any network a threshold can be defined based on set accuracy, while at the same time minimizing the instability identification time. Results demonstrate that highly accurate robust rotor angle thresholds can be found, even for highly uncertain power networks with a high penetration of Renewable Energy Sources (RES).

Original languageEnglish
Title of host publication2019 IEEE Milan PowerTech
Place of PublicationPiscataway, NJ
PublisherIEEE
Number of pages6
ISBN (Electronic)9781538647226
DOIs
Publication statusPublished - 26 Aug 2019
Event2019 IEEE Milan PowerTech, PowerTech 2019 - Milan, Italy
Duration: 23 Jun 201927 Jun 2019

Conference

Conference2019 IEEE Milan PowerTech, PowerTech 2019
CountryItaly
CityMilan
Period23/06/1927/06/19

Keywords

  • center of inertia
  • transient instability identification
  • transient instability threshold
  • uncertainties

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