Electrical Engineering Wroclaw University of Technology

Electrical Engineering Wroclaw University of Technology 11 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Power Quality in Wind Power Systems / Leonowicz, Z [ENY-ARTICLE-2009-268]
Wind power generation systems influence power quality in a specific way making important the need for detailed and accurate evaluation of disturbances caused by wind generators. [...]
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Assessment of Power Quality in Wind Power Systems / Leonowicz, Z [DOI:10.1109/EEEIC.2011.5874665 ] [ENY-ARTICLE-2013-360]
Wind power generation systems influence power quality in a very specific manner creating the requirements for detailed and correct analysis of disturbances caused by wind generators. [...]
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Advanced Signal Processing Methods for Evaluation of Harmonic Distortion Caused by DFIG Wind Generator / Janik, P ; Leonowicz, Z ; Rezmer, J ; Schostan, S ; et al [ENY-ARTICLE-2008-154]
Intensified growth of wind power generation emphasizes the need for detailed evaluation of disturbances caused by wind generators. [...]
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Computation of Spectral Components in System with Wind Generation Unit / Janik, P ; Lobos, T ; Rezmer, J ; Schegner, P ; et al [ENY-ARTICLE-2009-263]
Signal parameters estimation is an important prerequisite for assessment of power quality (PQ) indices. [...]
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Reactive Power Compensation / Kepka, J [ENY-THESIS-2010-014]
Over the last few years, the interest in reactive power compensation has been growing, mainly because of the way in which energy supplier charge a customer for reactive power. [...]
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Analysis of distorted waveforms using parametric spectrum estimation methods and robust averaging / Leonowicz, Z [ENY-ARTICLE-2008-074]
After the description of parametric methods (ESPRIT and MUSIC) and selected robust location measures (robust averaging methods), the comparison of the frequency and amplitude estimation error, based on numerical simulation is presented. [...]
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Application of the Prony Method for Compensation of Errors in Distance Relays / Trujillo, L ; Conde, A ; Leonowicz, Z [doi: 10.1109/EEEIC.2013.6549580 ] [ENY-ARTICLE-2013-352]
In this paper we propose an application of the Prony method as a filtering technique for distance relays. [...]
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Performance of parametric spectrum estimation methods / Leonowicz, Z [RK I07/2006/I-019] [ENY-ARTICLE-2009-240]
W pracy przedstawiono porównanie dokładności wyznaczania częstotliwości i amplitudy składowych sygnałów harmonicznych odkształconych przy pomocy parametrycznych metod estymacji widma: MUSIC i ESPRIT. [...]
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Time-Frequency Analysis of Complex Space-Phasor in Power Electronics / Leonowicz, Z ; Lobos, T ; Sikorski, T [doi:10.1109/TIM.2007.908250] [ENY-ARTICLE-2008-043]
This paper considers applying nonparametric and parametric methods for the calculation of the time–frequency representation of nonstationary signals in power electronics. [...]
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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). [...]
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