Electrical Engineering Wroclaw University of Technology

Electrical Engineering Wroclaw University of Technology 21 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
1.
On some spectrum estimation methods for analysis of non-stationary signals in power systems. Pt. 1. Theoretical Aspects. & Pt. 2. Numerical Applications / Bracale, A ; Carpinelli, G ; Lauria, D ; Leonowicz, Z ; et al [RZ I07/04/I-045RZ I07/04/I-046] [ENY-ARTICLE-2008-012]
Part I Frequency power converters and arc furnaces generate a wide spectrum of harmonic components and interharmonics. [...]
http://zet10.ipee.pwr.wroc.pl/record/14/files/
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2.
Parametric methods for time-frequency analysis of electric signals / Leonowicz, Z [ISSN 0324-945x] [ENY-BOOK-2008-001]
The author presents a new approach to spectral analysis of electric signals and related problems encountered in power systems. [...]
http://zet10.ipee.pwr.wroc.pl/record/11/files/
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3.
New power quality indices / Leonowicz, Z ; [RZ I07/2007/I-024] [ENY-ARTICLE-2008-171]
The author shows that the use of high-resolution spectrum estimation methods instead of Fourier-based techniques can improve the accuracy of measurement of spectral parameters of distorted waveforms encountered in power systems, in particular the estimation of the power quality indices (such as inter/harmonic groups and subgroups). [...]
http://zet10.ipee.pwr.wroc.pl/record/220/files/
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4.
Analysis of Sub-Harmonics in Power Systems / Leonowicz, Z [10.1109/EEEIC.2010.5489951 ] [ENY-ARTICLE-2013-354]
With a wide range of power electronics-related applications in power systems, harmonic currents are increasing at an alarming rate which has greatly deteriorated the power quality in electrical power networks. [...]
http://zet10.ipee.pwr.wroc.pl/record/443/files/
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5.
Spectrum estimation methods for signal analysis in the supply system of DC arc furnace / Leonowicz, Z ; Lobos, T ; Rezmer, J [RZ I07/2005/I-023] [ENY-ARTICLE-2009-242]
In this paper, Prony and root-MUSIC methods are applied for analysis of waveforms from the DC arc furnace supply. [...]
http://zet10.ipee.pwr.wroc.pl/record/303/files/
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6.
Parametric Spectral Estimation for Power Quality Assessment / Leonowicz, Z ; Lobos, T [1-4244-0813-X/07/$20.00 2007 IEEE] [ENY-ARTICLE-2008-025]
The authors show that the use of highresolution spectrum estimation methods instead of Fourier-based techniques can improve the accuracy of measurement of spectral parameters of distorted waveforms encountered in power systems, in particular the estimation of the power quality indices (such as harmonic and interharmonic groups and subgroups). [...]
http://zet10.ipee.pwr.wroc.pl/record/32/files/
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7.
Advanced Spectrum Estimation Methods for Signal Analysis in Power Electronics / Leonowicz, Z ; Lobos, T ; Rezmer, J [ENY-ARTICLE-2008-003]
Modern frequency power converters generate a wide spectrum of harmonics components. [...]
http://zet10.ipee.pwr.wroc.pl/record/3/files/
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8.
Measurement of IEC Groups and Subgroups Using Advanced Spectrum Estimation Methods / Bracale, A ; Carpinelli, G ; Leonowicz, Z ; Lobos, T ; et al [ENY-ARTICLE-2008-117]
The International Electrotechnical Commission (IEC) standards characterize the waveform distortions in power systems with the amplitudes of harmonic and interharmonic groups and subgroups. [...]
http://zet10.ipee.pwr.wroc.pl/record/152/files/
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9.
Spectral estimation of distorted signals using Prony method / Lobos, T ; Rezmer, J [ENY-ARTICLE-2008-040]
Modern Frequency power converters generate a wide spectrum of harmonic components. [...]
http://zet10.ipee.pwr.wroc.pl/record/48/files/
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10.
Evaluation of compensation devices of DC arc furnaces using advanced spectrum estimation methods / Bracale, A ; Carpinelli, G ; Lobos, T ; Leonowicz, Z ; et al [RZ I07/05/I-026] [ENY-ARTICLE-2008-011]
Spectral representation of waveform distor-tions has been of great interest in power systems for many years since the disturbing loads generate a wide spectrum of components which deteriorate the quality of power supply. [...]
http://zet10.ipee.pwr.wroc.pl/record/13/files/
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