A Reduced Prony's Method in Power-Quality Analysis—Parameters Selection

Zygarlicki, Jarosław; Zygarlicka, M.; Mroczka, Janusz; Latawiec, Krzysztof J.

doi:10.1109/tpwrd.2009.2034745

Cited by 95 publications

(76 citation statements)

References 10 publications

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“…In the first stage, frequency and damping coefficients of the complex exponents modelling the analysed signal are determined. In the second stage, amplitudes and initial phases of the components are calculated based on the parameter values determined in the previous stage [17,21].…”

Section: Description Of Adaptation Of Original Prony's Methods For Embmentioning

confidence: 99%

“…Therefore, it is enough to determine the parameters of a single element of vector h. Note that the operations from (20) are filter operations with FIR type filters with coefficients: Crow1 for h1 of signal x and Crow2 for h2 of signal x. However, the complex calculation of single FIR filter coefficients is still required, as described above.…”

Section: Determination Of Initial Stages and Amplitudesmentioning

confidence: 99%

“…For further transformations for simplicity, it was assumed that B1 = -i. In this way, substituting B1 = -i in the formula (24) and next in the formula (20), and substituting x1 = a and x2 = b after transformations, it can be written down as a simple relation to the real and imaginary parts of the parameter h1:…”

Section: Determination Of Initial Stages and Amplitudesmentioning

confidence: 99%

See 2 more Smart Citations

Fast Second Order Original Prony’s Method for Embedded Measuring Systems

Zygarlicki

2017

Metrology and Measurement Systems

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The paper presents a method of adaptation of the original second order Prony's method for applications in lowcost digital measurement systems with low computing performance. The presented method can be used in measuring systems where it is important to obtain in real time the values of amplitude, frequency, initial phase and damping coefficient of a single sinusoidal component of an analysed signal. The paper presents optimized, in terms of the number of mathematical operations, implementation of the method in selected embedded devices as well as the calculation times of the method for each platform.

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Section: Description Of Adaptation Of Original Prony's Methods For Embmentioning

confidence: 99%

Section: Determination Of Initial Stages and Amplitudesmentioning

confidence: 99%

Section: Determination Of Initial Stages and Amplitudesmentioning

confidence: 99%

See 1 more Smart Citation

Fast Second Order Original Prony’s Method for Embedded Measuring Systems

Zygarlicki

2017

Metrology and Measurement Systems

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“…The modification constitutes in a specific selection of a constant frequency vector in a Fourier-like manner leading to a remarkable reduction of the computational burden. In addition, a sampling frequency and an analysis window length can be selected to provide the numerical stability of the new algorithm [5].…”

Section: IImentioning

confidence: 99%

“…The main feature of the transforms, on the basis of testing signals, was presented [7]. Zygarlicki et al (2010) presents a new modification of the least-squares Prony's method for power-quality analysis in terms of estimation of harmonics and interharmonics in an electric power signal. The so-called reduced Prony's method can be competitive, in some specific case, to the Fourier transformation (F.T) method and the classical LS Prony's method.…”

Section: IIImentioning

confidence: 99%

Harmonics Detection Using Prony Frequency Analysis Algorithm in Transformer Inrush Current Generation after Fault Clearance

Wylie¹,

Tiwari²

2014

International Journal of Innovative Research in Electrical, Ele

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Abstract:The traditional infrastructure of power system industry is presently going through large amount of change that consensus over the improvement of power quality for fulfilling this requirement electronically automated devices having high sensitivity toward the disturbance in the power system signals are under the major consensus of research activities. The low power quality signal is responsible for malfunctioning of equipments that result in reduction of production and rise in the cost of production. In the modern age electronic convertors, facts and other thyristor controlled devices is combine with the new power transmission schemes. That produces harmonics current of high frequency order and brings large amount of current and voltage quality distortion. In this paper we are investigating and implementing the Prony harmonics analysis algorithm for estimation of harmonics in the voltage cycle available during saturable core transformer energizing the result are validate and compared with the short time Fourier analysis our proposed approach found to be more accurate and aliquant for non linear discrete data signals.

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Grid reconnection detection for synchronous distributed generators in stand-alone operation

Jouybari-Moghaddam

Hosseinian

Vahidi

2013

Int. Trans. Electr. Energ. Syst.

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Summary Industrial plants/commercial facilities with synchronous generation, seek reliable and continuous operation even at the time of grid outages. Thus, islanding detection methods have been proposed in the literature that can be used to change the operating mode of the employed distributed generators from grid‐parallel to stand‐alone. Among the few solutions previously presented for switching the control mode in the reverse event of reconnecting to the grid, the method presented in this paper is unique. This grid‐reconnection detection technique is low cost, fast, and does not interact with the power quality of the island although it only uses one, locally measured, variable. The method implies processing of oscillatory modes in frequency signal and is independent of the autonomous island's boundary. The investigation also includes a discussion on similar event of merging of adjacent islands. Simulations confirm the successful discrimination between reconnection event and other switching/power quality events. Copyright © 2013 John Wiley & Sons, Ltd.

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A Reduced Prony's Method in Power-Quality Analysis—Parameters Selection

Cited by 95 publications

References 10 publications

Fast Second Order Original Prony’s Method for Embedded Measuring Systems

Fast Second Order Original Prony’s Method for Embedded Measuring Systems

Harmonics Detection Using Prony Frequency Analysis Algorithm in Transformer Inrush Current Generation after Fault Clearance

Grid reconnection detection for synchronous distributed generators in stand-alone operation

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