A Multivariate Approach Towards Interarea Oscillation Damping Estimation Under Ambient Conditions Via Independent Component Analysis and Random Decrement

Author

Thambirajah, Jegatheeswaran ; Thornhill, Nina F. ; Pal, Bikash C.

Author_Institution

Centre for Process Syst. Eng., Imperial Coll. London, London, UK

Volume

26

Issue

1

fYear

2011

Firstpage

315

Lastpage

322

Abstract

This paper presents a novel approach to the monitoring of interarea oscillation frequency and damping using multivariate analysis techniques. A two-step method is presented 1) independent component analysis for the detection of interarea modes and estimation of their frequencies and 2) random decrement for the estimation of mode damping. The method is applied to real measurements taken in Finland within the Nordic Power System to estimate the critical interarea mode frequency and damping in the system.

Keywords

damping; frequency estimation; independent component analysis; oscillations; power system measurement; Finland; Nordic Power System; independent component analysis; interarea mode detection; interarea mode frequency measurement; interarea oscillation damping monitoring; interarea oscillation frequency estimation; mode damping estimation; multivariate approach; random decrement; Independent component analysis; interarea oscillations; power system damping; power system stability; random decrement; wide area monitoring;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/TPWRS.2010.2050607

Filename

5484563