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Algorithm Summary and Evaluation [electronic resource] : Automatic Implementation of Ringdown Analysis for Electromechanical Mode Identification from Phasor Measurements

Published:
Washington, D.C. : United States. Dept. of Energy, 2010.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
PDFN
Additional Creators:
Pacific Northwest National Laboratory (U.S.), United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
Small signal stability problems are one of the major threats to grid stability and reliability. Prony analysis has been successfully applied on ringdown data to monitor electromechanical modes of a power system using phasor measurement unit (PMU) data. To facilitate an on-line application of mode estimation, this paper develops a recursive algorithm for implementing Prony analysis and proposed an oscillation detection method to detect ringdown data in real time. By automatically detecting ringdown data, the proposed method helps guarantee that Prony analysis is applied properly and timely on the ringdown data. Thus, the mode estimation results can be performed reliably and timely. The proposed method is tested using Monte Carlo simulations based on a 17-machine model and is shown to be able to properly identify the oscillation data for on-line application of Prony analysis. In addition, the proposed method is applied to field measurement data from WECC to show the performance of the proposed algorithm.
Report Numbers:
E 1.99:pnnl-19172
pnnl-19172
Subject(s):
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Note:
Published through SciTech Connect.
02/28/2010.
"pnnl-19172"
"600303000"
Huang, Zhenyu; Jin, Shuangshuang; Zhou, Ning; Tuffner, Francis K.; Lin, Jenglung; Hauer, Matthew L.
Funding Information:
AC05-76RL01830
View MARC record | catkey: 14757152