Commenced in January 2007
Paper Count: 30174
A Dynamic Filter for Removal DC - Offset In Current and Voltage Waveforms
Authors: Khaled M.EL-Naggar
Abstract:In power systems, protective relays must filter their inputs to remove undesirable quantities and retain signal quantities of interest. This job must be performed accurate and fast. A new method for filtering the undesirable components such as DC and harmonic components associated with the fundamental system signals. The method is s based on a dynamic filtering algorithm. The filtering algorithm has many advantages over some other classical methods. It can be used as dynamic on-line filter without the need of parameters readjusting as in the case of classic filters. The proposed filter is tested using different signals. Effects of number of samples and sampling window size are discussed. Results obtained are presented and discussed to show the algorithm capabilities.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1072293Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 3384
 M.S. Sachdev and M.A. Baribeau, A new algorithm for digital impedance relays, IEEE Trans. Power App. & Syst. Vol. Pas-98, pp.253- 260, Dec.
 G. Benmouyal, Removal Of Dc- Offset In Current Waveforms Using Digital Mimic Filtering, Ieee Trans. On Power Delivery, Vol. 10, No. 2, April 1995.
 A.A.Girgis, R.G.Brown, Application Of Kalman Filtering In Computer Relaying, Ieee.Trans. Pas-101, No.9, Sept.1981, Pp.3387-3397.
 H.J. Altuve F, I Diaz V., Ernesto Vazquez M, Fourier And Walsh Digital Filtering Algorithms For Distance Protection, Ieee Trans. On Power Systems, Vol. 11, No. 1, Feb. 1996.
 Jyh- Cheng Gu, Removal Of Dc Offset In Current And Voltage Signals Using A Novel Fourier Filter Algorithm, Ieee Trans. On Power Delivery, Vol. 15, No. 1, Jan. 2000.
 ] A. M. Gaouda, M.M.A.Salama, M.R.Sultan And A.Y.Chikhani, Application Of Multiresolution Signal Decomposition For Monitoring Short- Duration VariatioIn Distribution Systems, Ieee Trans. On Power Delivery, Vol. 15,No. 2, April 2000.
 P. Suresh Babu and S. V. Jayaram Kumar, "A Novel Algorithm To Extract Exact Fundamental Frequency Components During Faults For Digital Protection Of Power System", ARPN Journal Of Engineering And Applied Sciences, vol. 4, no. 10, December 2009, pp. 78-82.
 Eisa, A.A.A.; Ramar, K., Removal of decaying DC offset in current signals for power system phasor estimation, Proc. of 43rd International Universities Power Engineering Conference, Padova, UPEC 2008 , pp.1-4
 Stoon- Ryul Nam, Sang- Hee Kang, And Jong- Keun Park, An Analytic Method For Measuring Accurate Fundamental Frequency Components, IEEE Trans. On Power Delivery, Vol. 17, No. 2, April 2002.
 Wael M.Al-Hasawi, Khaled M.El-Naggar, "A Genetic Based Filter Algorithm for Removal of DC Offset In Current And Voltage Signals Using ", The 4th IASTED International Conference On Power And Energy Systems (Europes 2004), Rhodes, Greece, June 2004.
 G.S. Christensen And S.A. Soliman, "Optimal Filtering Of Linear Discrete Dynamic Systems Based On Least Absolute Value Approximations", Automatica, 1990, Vol. 26, No. 2.