Comparison of Matrix Pencil and Prony Methods for Power System Modal Analysis of Noisy Signals
Abstract
Modal information extracted from the dynamic response of power systems can be applied to detect low frequency oscillations and assess stability margins for monitoring and preventive control. This paper examines two techniques for modal identification based on their ability to accurately identify system modes in the presence of noisy signals. The methods investigated include Prony analysis, which has commonly been used in power system studies, and the Matrix Pencil method, which is more common in electromagnetic analysis. Prony analysis has been shown to have difficulties extracting the modes of noisy signals, so the examples presented explore these shortcomings and compare them to the capabilities of the Matrix Pencil method.
Recommended Citation
L. L. Grant and M. Crow, "Comparison of Matrix Pencil and Prony Methods for Power System Modal Analysis of Noisy Signals," Proceedings of the 2011 North American Power Symposium, NAPS '11, (2011, Boston, MA), pp. 1 - 7, Institute of Electrical and Electronics Engineers (IEEE), Aug 2011.
The definitive version is available at https://doi.org/10.1109/NAPS.2011.6024892
Meeting Name
2011 North American Power Symposium NAPS '11, (2011: Aug. 4-6, Boston, MA)
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Eigenvalues and Eigenfunctions; Modal Analysis; Noise Measurement; Polynomials; Power System Stability; Signal to Noise Ratio
International Standard Book Number (ISBN)
978-1-4577-0417-8
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2011 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
Publication Date
01 Aug 2011
