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A generalized subspace least mean square method for high-resolution accurate estimation of power system oscillation modes

  • Pacific Northwest National Laboratory
  • University of Connecticut

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A generalized subspace least mean square method is presented for accurate and robust estimation of oscillation modes from exponentially damped power system signals. The method is based on the orthogonality of signal and noise eigenvectors of the signal autocorrelation matrix. Performance of the proposed method is evaluated using Monte Carlo simulation and compared with the Prony method. Test results show that the generalized subspace least mean square method is highly resilient to noise and significantly dominates the Prony method in tracking power system modes under noisy environments.

Original languageEnglish
Pages (from-to)1205-1212
Number of pages8
JournalElectric Power Components and Systems
Volume41
Issue number12
DOIs
StatePublished - Sep 10 2013

Keywords

  • least mean square
  • mode estimation
  • power system oscillation
  • subspace

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