Adaptive Prony Method for the Calculation of Power-Quality Indices in the Presence of Nonstationary Disturbance Waveforms

2009 ◽  
Vol 24 (2) ◽  
pp. 874-883 ◽  
Author(s):  
A. Andreotti ◽  
A. Bracale ◽  
P. Caramia ◽  
G. Carpinelli
Keyword(s):  
Power Quality ◽  
Quality Indices ◽  
Prony Method

scholarly journals The Influence of Voltage Referential in Power Quality Indices Evaluation

2008 ◽  
Vol 6 (1) ◽  
pp. 81-88 ◽  
Author(s):  
F.P. Marafao ◽  
S.M. Deckmann ◽  
H.K. Morales P.
Keyword(s):  
Power Quality ◽  
Quality Indices

Variable-Frequency Prony Method in the Analysis of Electrical Power Quality

2012 ◽  
Vol 19 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Jarosław Zygarlicki ◽  
Janusz Mroczka
Keyword(s):  
Least Squares ◽  
Power Quality ◽  
Electrical Power ◽  
Electric Energy ◽  
Variable Frequency ◽  
Prony Method ◽  
Analysis Window ◽  
Proposed Modification ◽  
Selection Of

Variable-Frequency Prony Method in the Analysis of Electrical Power QualityThe article presents a new modification of the the least squares Prony method. The so-called variable-frequency Prony method can be a useful tool for estimating parameters of sinusoidal components, which, in the analyzed signal, are characterized by time-dependent frequencies. The authors propose use of the presented method for testing the quality of electric energy. It allows observation of phenomena which, when using traditional methods, are averaged in the analysis window. The proposed modification of least squares Prony method is based on introduction and specific selection of a frequency matrix. This matrix represents frequencies of estimated components and their variability in time.

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