Abstract
Addition of a large number of nonlinear loads in the electric power grid has increased the volume of harmonics, which necessitates its accurate and reliable measurement for both control and metering purpose. Legacy techniques like FFT underperform with the present grid scenarios, wherein the frequency varies over time besides the variations of the harmonic combinations. This paper presents an alternative adaptive technique, Empirical Wavelet Transform (EWT), for individual frequency component extraction and measurement of nonstationary signals. The performance of EWT is evaluated through different test cases depicting typical distribution grid scenarios, where it is tuned to capture the frequency and magnitude variations of nonstationary signals, and the results are presented. Similarly, dynamic changes in frequency and magnitudes of the input signals are introduced and the time–frequency correlations are analyzed and presented.
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References
Mansoor A, Grady WM, Chowdhury AH, Samotyi MJ (1995) An investigation of harmonics attenuation and diversity among distributed single-phase power electronic loads. IEEE Trans Power Deliv 10(1):467–473
Carpinelli G, Iacovone F, Varilone P, Verde (2003) Single phase voltage source converters: analytical modelling for harmonic analysis in continuous and discontinuous current conditions. Int J Power Energy Syst 23(1):37–48 (2003)
Rashid MH, Maswood AI (1988) A novel method of harmonic assessment generated by three-phase AC-DC converters under unbalanced supply conditions. IEEE Trans Ind Appl 24(4):590–597
Kim S, Enjeti PN, Packebush P, Pitel IJ (1994) A new approach to improve power factor and reduce harmonics in a three phase diode rectifier type utility interface. IEEE Trans Ind Appl 30(6):1557–1564
Chen D, **e S (2004) Review of the control strategies applied to active power filters. In: Proceedings of the IEEE international conference on electric utility deregulation, restructuring and power technologies (DRPT’04), pp 666–670, Apr 2004
Zhou K, Lv Z, Luo A, Liu L (2010) Control strategy of shunt hybrid active power filter in distribution network containing distributed power. In: Proceedings of the China international conference on electricity distribution (CICED’10), pp 1–10, Sept 2010
Aredes M, Monteiro LFC, Miguel JM (2003) Control strategies for series and shunt active filters. In: Proceedings of the IEEE Bologna power tech conference, pp 1–6, June 2003
Johnson JR (2002) Proper use of active harmonic filters to benefit pulp and paper mills. IEEE Trans Ind Appl 38(3):719–725
Singh B, Al-Haddad K, Chandra A (1999) A review of active filters for power quality improvement. IEEE Trans Ind Electron 46(5):960–971
Granados-Lieberman D, Romero-Troncoso RJ, Osornio-Rios RA, Garcia-Perez A, Cabal-Yepez E (2011) Techniques and methodologies for power quality analysis and disturbances classification in power systems: a review. IET Gen Trans Distrib 5(4):519–529
Bollen M, Yu-HuaaGu I (2006) Signal processing of power quality disturbances. Wiley, Hoboken, NJ, USA
Definitions for the Measurement of Electric Quantities under Sinusoidal (2000) Non-sinusoidal, balanced, or unbalanced conditions. IEEE Stand 1459–2010
Hamid EY, Mardiana R, Kawasaki ZI (2002) Method for RMS and power measurements based on the wavelet packet transform. Proc Inst Electron Eng Sci Meas Technol 149(2):60–66
Gilles J (2013) Empirical wavelet transform. IEEE Trans Signal Process 61(16):3999–4010
Keerthy P, Maya P, Sindhu MR (2017) An adaptive transient tracking harmonic detection method for power quality improvement. IEEE Reg 10 Symp (TENSYMP)
Maya P, Roopasree K, Soman KP (2015) Discrimination of internal fault current and inrush current in a power transformer using empirical wavelet transform. Proc Technol 21:514–519
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Swathika, S., Vinothraj, C., Vijayakumari, A. (2019). An Alternative Approach for Harmonic Measurements in Distribution Systems with Empirical Wavelet Transform. In: Panda, G., Satapathy, S., Biswal, B., Bansal, R. (eds) Microelectronics, Electromagnetics and Telecommunications. Lecture Notes in Electrical Engineering, vol 521. Springer, Singapore. https://doi.org/10.1007/978-981-13-1906-8_27
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DOI: https://doi.org/10.1007/978-981-13-1906-8_27
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