Comprehensive review of short-term voltage stability evaluation methods in modern power systems

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Abstract

The possibility to monitor and evaluate power system stability in real-time is in growing demand. Whilst most stability-related studies focus on long-term voltage stability and frequency stability, very little attention is given to the issue of short-term (voltage) instability. In this paper, the most common evaluation methods present in the literature are summarized, with a focus on their applicability to modern power systems with a large amount of renewable energy integration. The paper presents a first-of-a-kind structured review of this topic. We find that all existing methods have noteworthy limitations that necessitate further improvements. Additionally, the need of having an inclusive short-term instability prediction method is demonstrated, due to strong interactions between various short-term instability mechanisms. These findings provide a good foundation for further research and advancement in the field of real-time stability monitoring.

Original languageEnglish
Article number4076
Number of pages17
JournalEnergies
Volume14
Issue number14
DOIs
Publication statusPublished - 2021

Keywords

  • Real-time monitoring
  • Short-term voltage stability
  • Stability evaluation
  • State of the art

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