On-line Power Frequency Estimation Using Real-Time Wavelet Transform

Volume 1, Issue 1, October 2016     |     PP. 15-28      |     PDF (324 K)    |     Pub. Date: October 16, 2016
DOI:    480 Downloads     8157 Views  

Author(s)

M. Forghani, epartment of electrical and computer engineering, University of Tehran, Tehran, Iran
S. Afsharnia, epartment of electrical and computer engineering, University of Tehran, Tehran, Iran

Abstract
this paper proposes a new technique for estimating the fundamental frequency of power system in harmonic condition by using real-time wavelet transform. Indeed, the fundamental component of the distorted system voltage is extracted using real-time wavelet transform and then the frequency of the fundamental component can be estimated using a simple mathematical method. In spite of other methods for estimating the power frequency, which are so complicated and time consuming to have a good accuracy or simple methods which are not accurate in presence of harmonic, the proposed method can extract the power frequency not only so fast but also with acceptable accuracy. The fast operation of this technique makes its response more accurate in dynamic and transient conditions. Simulation results validate the proposed technique for power frequency estimation in harmonic condition. Also, comparisons of this technique and least square method are presented to show the advantageous of this novel method.

Keywords
power quality, power frequency estimation, real-time wavelet transform, Multi-Resolution Analysis (MRA)

Cite this paper
M. Forghani, S. Afsharnia, On-line Power Frequency Estimation Using Real-Time Wavelet Transform , SCIREA Journal of Electrical Engineering. Volume 1, Issue 1, October 2016 | PP. 15-28.

References

[ 1 ] A.M. Gaouda, M.M.A. Salama, M.R. Sultan, A.Y. Chikhani, “Power Quality Detection and Classification Using Wavelet-Multiresolution Signal Decomposition”, IEEE Trans. On Power Delivery, Vol. 14, No. 4, October 1999, pp. 1469-1476.
[ 2 ] T. Lin, M. Tsuji, E. Yamada, “A Wavelet Approach to Real Time Estimation of Power System Frequency”, SICE conference, Nagoya, July 25-27, 2001, pp. 58-65.
[ 3 ] A.A. Girgis, F. Ham, “A Quantitative Study of Pitfalls in FFT”, IEEE Trans. Aerosp. Electronic system, Vol. 16, No. 4, 1980, pp. 434-439.
[ 4 ] M. M. Begovic, P. M. Djuric, S. Dunlap, and A. G. Phadke, “Frequency Tracking in Power Networks in the Presence of Harmonics”, IEEE Trans. on Power Delivery, vol. 8, no. 2, Apr. 1993, pp. 480–486.
[ 5 ] M.S. Sachdev, M.M. Grady, “A Least Square Technique for Determinig Power System Frequency”, IEEE Trans. On Power Apparatus and systems, Vol. 104, No. 2, 1985, pp. 437-443.
[ 6 ] G. Phadke, J. S. Thorp, and M. G. Adamiak, “A New Measurement Technique for Tracking Voltage Phasors, Local System Frequency, and rate of change of frequency,” IEEE Trans. on Power Apparatus and Systems, vol. 102, no. 5, May 1983, pp. 1025–1038.
[ 7 ] Kamwa, R. Grondin, “Fast Adaptive Schemes for Tracking Voltage Phasor and Local Frequency in Power Transmission and Distribution Technique”, IEEE Trans. On Power Delivery, Vol. 7, No. 2, 1992, pp. 789-795.
[ 8 ] V.V. Terzija, M. B. Djuric, B. D. Kovacevic, “Voltage Phasor and Local System Frequency Estimation Using Newton-type Algorithm”, IEEE Transaction on Power Delivery, Volume 9, No. 3, 1994, pp. 1368-1374.
[ 9 ] G. Benmouyal, “An Adaptive Sampling Interval Generator for Digital Relaying”, IEEE Trans. On Power Delivery, Vol. 4, No. 3, 1989, pp. 1602-1609.
[ 10 ] D. Hart, D. Novosel, “A New Freqency Tracking and Phasor Estimation Algorithm for Generator Protection”, IEEE Trans. On Power Delivery, Vol. 12, No.3, 1997, pp. 1064-1071.
[ 11 ] H.S. Song, K. Nam, “Instantaneous Phase Angle Estimation Algorithm Under Unbalanced Voltage Sag Conditions”, IEE Proceeding on Generato, Transmission and Distribution, Vol. 147, No. 6, 2000, pp. 409-415.
[ 12 ] P.J. Moore, R.D. Carranza, A.T. Johns, “A New Numeric Technique for High Speed Evaluation of Power System Frequency”, IEE Proceeding on Generato, Transmission and Distribution, Vol. 141, No. 5, 1994, pp. 529-536.
[ 13 ] P. J. Moore, J.H. Allmelling ,A.T. Johns, “Frequency Relaying Based on Instantaneous Frequency Measurement”, IEEE Trans. On Power Delivery, Vol. 11, No. 4, 1996, pp. 1737-1742.
[ 14 ] P.K. Dash, A.K. Pradhan, G. Panda, “Frequency Estimation of Distorted Power System Signals Using Extended Complex Kalman Filter”, IEEE Trans. On Power Delivery, Vol. 14, No.3, July 1999, pp. 761-766.
[ 15 ] Routray, A.K. Pradhan, K.P. Rao, “A Novel Kalman Filter for Frequency Estimation of Distorted Signals in Power Systems”, IEEE Trans on Instrumentation and Measurement ,Vol. 51, No. 3, June 2002, pp.469-479.
[ 16 ] P. K. Dash, B. R. Mishra, R. K. Jena, and A. C. Liew, “Estimation of Power System Frequency Estimation Using Adaptive Notch Filters,” in Proc. EMPD’98, IEEE Cat. No. 98Ex137, pp. 143–148.
[ 17 ] J.Z. Yang, C.W. Liu, “A Precise Calculation of Power System Frequency”, IEEE Trans on Power Delivery, Vol.16, No. 3, July 2001, pp. 361-366.
[ 18 ] P. J. Moore, R. D. Crranza, and A. T. Johns, “A New Numeric Technique for High-Speed Evaluation of Power System Frequency” Inst. Elect. Eng. Proc.—Gen., Transm. Distrib., vol. 141, pp. 529–536, 1994.
[ 19 ] K.M. Elnaggar, H.K. Youssef, “A Genetic Based Algorithm for Frequency Relaying Applications”, Electric Power System Research, Vol.55, No.3, 2000, pp.173-178.
[ 20 ] A Cichochi, T. Lobos, “Artificial Neural Network for Real Time Estimation of Basic Waveform of Voltages and Currents”, IEEE Trans. on Power System, Vol. 9, No. 2, 1994, pp. 612-617.
[ 21 ] P.K. Dash, D.P.Swain, “An Adaptive Neural Network Approach for the Estimation of Power System Frequency”, Electric Power System Research, Vol.41, No. 3, 1997, pp.203-210.
[ 22 ] L.L. Lai, W.L. Chan, “Real Time Frequency and Harmonic Evaluation Using Artificial Neural Network”, IEEE Trans. On Power Delivery, Vol. 14, No. 1, 1999, pp. 52-57.
[ 23 ] W.K. Yoon, M.J. Devaney, “Power Measurment Using the Wavelet Transform”, IEEE Trans. On Instrumentation and Measurment, Vol. 47, No.5, October 1998, pp. 1205-1210.
[ 24 ] Kamwa, R. Grondin, “Fast Adaptive Schemes for Tracking Voltage Phasor and Local Frequency in Power Transmission and Distribution Systems,” IEEE Trans. on Power Delivery, Vol. 7, No. 2, Apr. 1992, pp. 789–795.