Estimation of Modal Damping in Power Networks

Glickman, Mark and O'Shea, Peter J. and Ledwich, Gerard F. (2007) Estimation of Modal Damping in Power Networks. IEEE Transactions on Power Systems, 22(3). pp. 1340-1350.

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DOI: 10.1109/TPWRS.2007.901122

Abstract

This paper describes a new Fourier-based sliding window method for estimating the damping of exponentially decaying modes that occur in a power networks as a result of electric disturbances. The key innovation in the new method is the use of multiple orthogonal sliding windows rather than just a single pair of sliding windows. The use of these multiple orthogonal windows allows least-squares averaging strategies to be used, enabling lower variance estimates to be obtained as a result. A statistical analysis is provided, and simulations are presented to illustrate the effectiveness of the new method. The technique is also applied to real power system data.

ID Code:	8984
Item Type:	Journal Article
Keywords:	interconnected power systems, least, square methods, parameter estimation, power system monitoring, power system transients, singular value decomposition
ISSN:	0885-8950
Subjects:	Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000)
Divisions:	Institutes > Institute for Sustainable Resources Research Centres > CRC Integrated Engineering Asset Management (CIEAM) QUT Faculties and Divisions > Faculty of Built Environment and Engineering
Copyright Owner:	Copyright 2007 IEEE
Copyright Statement:	Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On:	14 Aug 2007
Last Modified:	23 Jan 2009 04:31

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