Harmonics Analysis in Power Supply Systems: A Case Study

Eyenubo Ogheneakpobo Jonathan, Ebisine Ezekiel Ebimene

Abstract


This work presents harmonic analysis which is a multiple of the fundamental frequency in various power supply systems. The subject matter includes the waveforms, frequencies, magnitudes and the phase angles. The influence of harmonics in power system (PS) has some significances such as reliability, lost time validity and the competence of electrical equipment. The research was borne out of gathering of data from various power sources (PS) and PHCN. These include 3.2 kVA, 2.8 kVA, 3.5 kVA, 250 kVA, 40 kVA, PHCN voltage 220 – 230 V, all operating at 50 Hz initial frequency. From the above stated power bases, data were gotten with ‘Owon meter/Oscilloscope’; they were analyzed using MatlabR2018a software.  A double tuned low-pass passive shunt filter configuration was designed for the simulation of harmonics in sources being considered. The signal was first digitized, then Fast Fourier Transform (FFT) was work out. This was verified through results of the VTHD of the supplies that precincts to the IEEE 519 1992 5% standard. The results gotten for the three numbers single-phase generators supply systems before and after simulation are as follows 1.61%, 1.37%, while 3-phase has 1.321%, 1.19% and the PHCN is 0.79% these values are within the limits of IEEE-519-92 of 5% variation level used for the work.

Full Text:

PDF

References


. Koray Parlak, Mehmet Ozdemir and Mehmet Timur Aydemir, 2009, Elimination of voltage harmonics caused by nonlinear loads in distributed power systems consisting of inverters. International Review of Electrical Engineering 4(2):228-234

. Mansoor A, Grady W. M., Chowdhury A. H. and Samotyi M. J., (1995), “An investigation of harmonics attenuation and diversity among distributed single-phase power electronic loads,” IEEE Transactions on Power Delivery, vol. 10, no. 1, pp. 467–473.

. IEEE Proposed Procedures, ANSI/IEEE Std. 519-1992

UNIVERSIDADE FEDERAL DO RIO DE JANEIRO. June 8, 2009 IEEE Xplore Restrictions apply. IEEE.

. Henderson R. D., and Rose P. J., (1994), "Harmonics: The Effects on Power Quality and Transformers", Industry Applications, IEEE Transactions, Vol. 30, Issue: 3, pp. 528 – 532

[. Eyenubo O.J and Ezekiel E.E, (2022), Loaded Distribution Transformers Measurement Method for Reliability Benin Electricity Distribution Company (BEDC) Environ: A Case Study, JOURNAL OF SCIENCE TECHNOLOGY AND EDUCATION 10(3), SEPTEMBER, 2022 ISSN: 2277-0011; Journal homepage: www.atbuftejoste.com

. Ian C. Evans Managing Director Harmonics Solutions Co. UK Dunferm line, Fife, Scotland UK James R. Johnson Member, IEEE Product Manager – AccuSine Schneider Electric – North America Salem, Oregon USA Copyright Material IEEE Paper No. 178

. Eyenubo and Oshevire, 2017, A Comparative Study of Ground Fault Analysis for a Practical Case of a Transmission Line Equipped with Different Series FACTS Devices, Journal of Nigerian Technology Association of Mathematical Physics, Vol. 36, pp. 889 – 896

Gregory M. and Williams, P.E. Understanding Nonlinear Loads and Generator Set Interaction Caterpillar Inc. (309) 578-4995.

. Huang C.L., Michael E, and Habetler T.G 2001 „The Mathematics of Circuit Analysis’ John Wiley and Sons, INC., New York.

. Churchill R.V. and Brown L. W., (1987), Fourier Series and Boundary hl ue Prohlems, McGraw-Hill, New York, New York, 1987 p 60.

. Eyenubo O. J, Ubeku E. U and Oniyemofe C. O, (2016), Matlab/Simulink Power FFT Tool of Starting A DC Motor, Journal of Nigerian Technology Association of Mathematical Physics, Vol. 36, pp. 381-388

. Eyenubo O. J. (2019) Power Quality Improvement of a 2.8kVA Single Phase Generator Using a Double-tune Filter, Nigerian Journal of Technology (NIJOTECH)

https://www.nijotech.com/index.php/nijotech/issue/view/85 Vol.38 Pages: 444 – 448

. Eyenubo O. J, and Prof. E, U. Ubeku (2018) Power Quality Analysis of Harmonics in 3.5kVA Single Phase Generator using Electronic Filter in Matlab/Simulink Environment , Int. Journal of Engineering Research and Application www.ijera.com

https://www.ijera.com/papers/Vol8_issue3/Part-1/B0803010914.pdf Vol.8 Pages: 45-49

. Kanter I, and Boonseng C., 2002, “A Harmonics Filter Installation to Reduce Harmonic Distortion in Industrial Power Systems”, 21th Electrical Engineering Conference (EECON-21), King Mongkut‟s Institute Technology Ladkabang, PW037, pp.405-408

. Eyenubo and Ubeku, 2014, Noise in Generators, The Journal of the Nigerian Institution of Production Engineers, Vol. 20, pp. 202-208

. Soomro D. M. and Almelian M. M., (2015), “Optimal Design of a Single Tuned Passive Filter to Mitigate Harmonics in Power Frequency”, APRN Journal of Engineering and Applied Sciences, Vol. 10, No. 19, October, pp. 229-234.

. IEC 61000-4-34, Ed 1 2013, “Analysis of Rectifier Circuits,” AIEE Transactions, vol. 63, pp. 1048-1058.

. Eyenubo O. J, Ubeku E. U and Offor Kennedy, (2014), “Harmonics Removal in Power Generators using Filters”, International Journal of Engineering Innovation & Research, Vol. 3, Issue 4; ISSN: 2277-5668; pp. 2277-5668,

. Eyenubo O. J, and Prof. E, U. Ubeku, (2018), “Power Quality Analysis of Harmonics in 3.5kVA Single Phase Generator using Electronic Filter in Matlab/Simulink Environment”, Int. Journal of Engineering Research and Application ISSN 2248-9622, www.ijera.com, Vol. 8, Issue 3; (Part-I); pp.9-14


Refbacks

  • There are currently no refbacks.