A Preventive Control Approach for Power System Vulnerability Assessment and Predictive Stability Evaluation

Ersen Akdeniz*, Mustafa Bagriyanik

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1 Atıf (Scopus)

Özet

Early detection of cascading failures phenomena is a vital process for the sustainable operation of power systems. Within the scope of this work, a preventive control approach implementing an algorithm for selecting critical contingencies by a dynamic vulnerability analysis and predictive stability evaluation is presented. The analysis was carried out using a decision tree with a multi-parameter knowledge base. After the occurrence of an initial contingency, probable future contingencies are foreseen according to several vulnerability perspectives created by an adaptive vulnerability search module. Then, for cases identified as critical, a secure operational system state is proposed through a vulnerability-based, security-constrained, optimal power flow algorithm. The modular structure of the proposed algorithm enables the evaluation of possible vulnerable scenarios and proposes a strategy to alleviate the technical and economic impacts due to prospective cascading failures. The presented optimization methodology was tested using the IEEE-39 bus test network and a benchmark was performed between the proposed approach and a time domain analysis software model (EMTP). The obtained results indicate the potential of analysis approach in evaluating low-risk but high-impact vulnerabilities in power systems.

Orijinal dilİngilizce
Makale numarası6691
DergiSustainability (Switzerland)
Hacim15
Basın numarası8
DOI'lar
Yayın durumuYayınlandı - Nis 2023

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Publisher Copyright:
© 2023 by the authors.

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