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EURASIP Journal on Advances in Signal Processing

EURASIP Journal on Advances in Signal Processing Cover Image
Research Article
Open Access

On the Empirical Estimation of Utility Distribution Damping Parameters Using Power Quality Waveform Data

EURASIP Journal on Advances in Signal Processing20072007:095328

https://doi.org/10.1155/2007/95328

©  Kyeon Hur et al. 2007

Received: 30 April 2006

Accepted: 24 December 2006

Published: 15 March 2007

Abstract

This paper describes an efficient yet accurate methodology for estimating system damping. The proposed technique is based on linear dynamic system theory and the Hilbert damping analysis. The proposed technique requires capacitor switching waveforms only. The detected envelope of the intrinsic transient portion of the voltage waveform after capacitor bank energizing and its decay rate along with the damped resonant frequency are used to quantify effective X/R ratio of a system. Thus, the proposed method provides complete knowledge of system impedance characteristics. The estimated system damping can also be used to evaluate the system vulnerability to various PQ disturbances, particularly resonance phenomena, so that a utility may take preventive measures and improve PQ of the system.

Keywords

Resonant FrequencyImpedance CharacteristicPower QualityCapacitor BankEstimate System

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Authors’ Affiliations

(1)
Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, USA
(2)
Department of Signals and Systems, Chalmers University of Technology, Gothenburg, Sweden

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Copyright

© Kyeon Hur et al. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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