Damping Estimation in Highly Interconnected Power Systems

Glickman, Mark and O'Shea, Peter J. and Ledwich, Gerard F. (2005) Damping Estimation in Highly Interconnected Power Systems. In: IEEE TENCON '05, 21-24 November 2005, Crown Promenade Hotel, Melbourne, Australia.

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DOI: 10.1109/TENCON.2005.301196

Abstract

In a large interconnected power system, oscillating modes typically arise after disturbances. Estimation of the rate of rise or decay of these disturbances (i.e. of the damping factor) is important so that poorly damped modes which put the system at risk can be identified. In the past both Fourier based and parametric techniques have been used to estimate the damping factors of the oscillating modes. Parametric methods tend to perform poorly in noise and existing sliding window methods do not optimally account for the kind of noise present in real operating environments. This paper presents an improvement to existing Fourier based methods for damping factor estimation. Simulations and real data results are provided to support the claims made in the paper. A comparison with parametric methods is also made.

ID Code:	2158
Item Type:	Conference Paper
Keywords:	damping factor, white Gaussian noise, colored noise, Prony analysis
Divisions:	QUT Faculties and Divisions > Faculty of Built Environment and Engineering
Copyright Owner:	Copyright 2005 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:	27 Oct 2005
Last Modified:	23 Jan 2009 04:24

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