Controlled Power System Separation Using Generator PMU Data and System Kinetic Energy

Ilya Tyuryukanov, Jorrit A. Bos, Mart A.M.M.van der Meijden, Vladimir Terzija, Marjan Popov

Research output: Contribution to journalArticleScientificpeer-review


With the growing number of severe system disturbances and blackouts around the world, controlled system separation is becoming an increasingly important system integrity protection scheme (SIPS) to save the electric power system from a complete or partial disintegration. A successful controlled splitting approach should at least tackle the following two well-known and interrelated problems: “when to split?” and “where to split?”. Multiple previous publications consider these problems separately, and even those pursuing a combined approach propose solutions with limited applicability. In this paper, we are proposing a novel PMU-based detector of loss of synchronism that utilizes generator PMU data to promptly detect rotor angle instabilities over a wide area. Moreover, we are showing how our loss of synchronism detection principle can be coupled with the known controlled splitting techniques to form an integrated defense scheme against unintentional loss of synchronism. The performance of this wide-area SIPS is demonstrated on the IEEE 39-bus test power system for various types of unstable conditions.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalIEEE Transactions on Power Delivery
Publication statusE-pub ahead of print - 2023

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


  • Controlled islanding
  • energy function
  • Generators
  • out-of-step (OOS) protection
  • phasor measurement unit (PMU)
  • Phasor measurement units
  • Power system stability
  • Real-time systems
  • rotor angle stability
  • Rotors
  • Stability criteria
  • Transient analysis
  • transient stability


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