An Online Dynamic Security Assessment in Power Systems Using RBF-R Neural Networks


Jafarzadeh S., Genç V. M. İ., Cataltepe Z.

IETE JOURNAL OF RESEARCH, cilt.67, sa.1, ss.36-48, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 67 Sayı: 1
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1080/03772063.2018.1527258
  • Dergi Adı: IETE JOURNAL OF RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Applied Science & Technology Source, Compendex, Computer & Applied Sciences, INSPEC
  • Sayfa Sayıları: ss.36-48
  • Anahtar Kelimeler: Feature selection, Instance selection, Neural networks, Power system security assessment, Radial basis function, Transient stability
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

In this paper, the dynamic security of a large power system against any critical contingency is predicted by a new type of radial basis function neural network, RBF-R NN, as it classifies the system's transient stability status online. In order to keep the number of measurements limited, as well as to reduce the complexity of the NNs used, the minimum redundancy maximum relevance is adopted as a feature selection method. Moreover, the classification performance of the RBF-R NNs is improved by eliminating the training set instances that are close to the security boundary. The proposed method is applied on a 16-generator-68-bus test system and the performance of the adopted RBF-R NNs is compared with RBF NNs, as well as with multilayer perceptrons. The simulation results show that a significant improvement in prediction accuracy is obtained by the RBF-R NNs together with the feature selection and the elimination of boundary instances.