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Detecting Power Voltage Dips using Tracking Filters - A Comparison against KalmanSTANCIU, I.-R. , MOLNAR-MATEI, F.
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power quality, voltage dips, digital signal processing, tracking filters, kalman filters
power(21), voltage(10), measurement(10), quality(9), kalman(8), system(7), instrumentation(6), analysis(6), filter(5), systems(4)
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About this article
Date of Publication: 2012-11-30
Volume 12, Issue 4, Year 2012, On page(s): 77 - 82
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2012.04012
Web of Science Accession Number: 000312128400012
SCOPUS ID: 84872821331
Due of its significant economical impact, Power-Quality (PQ) analysis is an important domain today. Severe voltage distortions affect the consumers and disturb their activity. They may be caused by short circuits (in this case the voltage drops significantly) or by varying loads (with a smaller drop). These two types are the PQ currently issues. Monitoring these phenomena (called dips or sags) require powerful techniques. Digital Signal Processing (DSP) algorithms are currently employed to fulfill this task. Discrete Wavelet Transforms, (and variants), Kalman filters, and S-Transform are currently proposed by researchers to detect voltage dips. This paper introduces and examines a new tool to detect voltage dips: the so-called tracking filters. Discovered and tested during the cold war, they can estimate a parameter of interest one-step-ahead based on the previously observed values. Two filters are implemented. Their performance is assessed by comparison against the Kalman filters results.
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 Mathematical Function of a Signal Generator for Voltage Dips Analysis, Molnar-Matei, F., Iovan, M., Maris, S., 2013 UKSim 15th International Conference on Computer Modelling and Simulation, ISBN 978-1-4673-6421-8, 2013.
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Stefan cel Mare University of Suceava, Romania
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