Variable-frequency Prony method in the analysis of electrical power quality

• Autorzy: Zygarlicki J. , Mroczka J.
• Języki publikacji: EN

Abstrakty

EN

The 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.

Słowa kluczowe

EN

power quality; Prony method; harmonics; measurements

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2012
• Tom: Vol. 19, nr 1
• Strony: 39--48
• Opis fizyczny: Bibliogr. 20 poz., rys., wykr., wzory

Twórcy

autor

Zygarlicki J.

autor

Mroczka J.

• Opole University of Technology, Institute of Power Engineering, Prószkowska 76, 45-758 Opole, Poland,

Bibliografia

• [1] Zygarlicki, J., Zygarlicka, M., Mroczka, J., Latawiec, K. (2010). A reduced Prony’s method in power quality analysis - parameters selection. IEEE Transactions on Power Delivery, 25(2), 979-986.
• [2] Zygarlicki, J., Mroczka, J. (2011). Short time algorithm of power waveforms fundamental harmonic estimations with Prony’s methods use. Metrology and Measurement Systems, 18(3), 33-38.
• [3] Zygarlicki, J., Zygarlicka, M., Mroczka, J. (2009). Prony’s metod in power quality analysis. Energy Spectrum, 4(2), 26-30.
• [4] Zygarlicki, J., Mroczka, J. (2006). Data compression using Prony’s method and wavelet transform in power quality monitoring systems. Metrology and Measurement Systems, 13(3), 237-251.
• [5] Feilat, E.A. (2006). Detection of voltage envelope using Prony analysis-Hilbert transform method. IEEE Trans. Power Del., 21(4), 2091-2093.
• [6] Feilat, E.A. (2006). Prony analysis technique for estimation of the mean curve of lightning impulses. IEEE Trans. Power Del., 21(4), 2088-2090.
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• [18] Standard IEC 61000-4-30 (2008) - Testing and measurement techniques - Power quality measurement methods.
• [19] Standard EN 50160 (2010) - Voltage characteristics of electricity supplied by public distribution networks.
• [20] Standard IEC 61000-4-7 (2009) - Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto.