Smart application for inter-area oscillations monitoring based on Newton-type algorithm

Deyu Cai, Pawel Regulski, Vladimir Terzija

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


A new Wide-Area Monitoring System (WAMS) application for monitoring inter-area oscillations, based on the Newton-type algorithm is presented in this paper. The core of this novel WAMS application is a numerical algorithm for the real-time estimation of the dominant inter-area oscillation mode, which processes Global Positioning System synchronized information obtained from Phasor Measurement Units installed in the power system. The parameter model is a highly nonlinear function, making this a particularly difficult challenge. Two data sets were tested using the new algorithm, one based on simulated models and the other based on real-life data records. The computer simulated model was based on a known architecture with signals obtained using a dynamic simulation of a multi-machine power system. The real-life data records used information collected on the FlexNet Wide-Area Monitoring System (FlexNET-WAMS) installed in the Great Britain power grid.

Original languageEnglish
Pages (from-to)2370-2384
Number of pages15
JournalInternational Transactions on Electrical Energy Systems
Issue number11
Publication statusPublished - 1 Nov 2016
Externally publishedYes


  • inter-area oscillations
  • Newton-type algorithm
  • nonlinear parameter estimation
  • power systems
  • Wide-Area Monitoring Systems


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