Prony's method used for testing harmonics and interharmonros in electrical power systems

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

Abstrakty

EN

The article presents an application of Prony's method with some known components in the analysis of electric power quality. Modifications of the Prony algorithm broaden the scope of method application. Modification of the filter of known components enables more accurate analysis of the parameters of unknown components and components with known or assumed frequencies. This article presents a comparison of the results of analyses conducted with the proposed algorithm for simulated and real signals and the results obtained by means of a commercial electric power quality testing device, operating in class A and using the Fourier transform. The proposed method enables to estimate the levels of the harmonic components, the frequency of the fundamental signal and real parameters of the interharmonic components, which are grouped and averaged in the contemporary monitoring equipment. Knowledge of the individual parameters of the interharmonics has considerable diagnostic importance while removing causes of incorrect operation affecting sensitive equipment in some electric power systems. Additionally, the algorithm is capable of analyzing exponentially damped components and finds its application in analysis of disturbances, for example, transient oscillations.

Słowa kluczowe

EN

Prony's method; signal processing; harmonics; measurements

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2012
• Tom: Vol. 19, nr 4
• Strony: 659--672
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr.

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., Mroczka, J. (2011). Short time algorithm of power waveforms fundamental harmonic estimations with Prony’s methods use. Metrol. Meas. Syst., 18(3), 33-38.
• [2] Nam, S.R., Kang, S.H., Park, J.K. (2002). An analytic method for measuring accurate fundamental frequency components. IEEE Trans. Power Del., 17(2), 405-411.
• [3] Wen, H., Teng, Z., Wang, Y. (2011). Simple Interpolated FFT Algorithm Based on Minimize Sidelobe Windows for Power-Harmonic Analysis. IEEE Trans. Power Electronics, 26(9), 2570-2579.
• [4] Sachin, K.J., Singh, S.N. (2011). Harmonics estimation in emerging power system: Key issues and challenges. Electronic Power Systems Research, 81(9), 1754-1766.
• [5] Borkowski, J. (2011). Minimization of maximum errors in universal approximation of the unit circle by a polygon. Metrol. Meas. Syst., 18(3), 391-402.
• [6] Bracale, A., Carpinelli, G., Leonowicz, Z., Lobos, T., Rezmer, J. (2008). Measurement of IEC Groups and Subgroups using Advanced Spectrum Estimation Methods. IEEE Trans. Instr. and Meas., 57(4), 672-681.
• [7] Standard PN-EN 61000-4-7:2007/A1:2011 - Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto.
• [8] Lobos, T., Leonowicz, Z., Rezmer, J., Schegner P. (2006). High-resolution spectrum-estimation methods for signal analysis in power systems. IEEE Trans. Instrum. Meas., 55(1), 219-225.
• [9] Leonowicz, Z., Lobos, T., Rezmer, J. (2003). Advanced spectrum estimation methods for signal analysis in power electronics. IEEE Trans. Ind. Electron., 50(3), 514-519.
• [10] Zhijian, Hu, Jianquang, Guo, Mei, Yu, Zhiwei, Du, Chao, Wang. (2006). The Studies on Power System Harmonic Analysis based on Extended Prony Method. 2006 International Conference on Power Systems Technology (POWERCON), Chongqing, China, 22-26.
• [11] Marple, S., Lawrence, J. (1987). Digital Spectral Analysis. Prentice-Hall.
• [12] 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.
• [13] Zygarlicki, J., Zygarlicka, M., Mroczka, J. (2008). Prony’s method in power quality analysis. Proc. 9thInt. Scientific Conf. Electric Power Engineering, Brno, Czech Republic, 115-119.
• [14] Standard EN 50160 (2010) - Voltage characteristics of electricity supplied by public distribution networks.