Characterizing nonlinear load harmonics using fractal analysis

K. C. Umeh, Azah Mohamed, Ramizi Mohamed, Aini Hussain

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

Power quality has become a major concern to both utilities and their consumers because equipments currently are more sensitive to power quality related disturbances. One of the power quality concerns that have received most attention is the problem of harmonics which are generated by widely dispersed nonlinear loads. In order to fully understand the problem of harmonic distortion, an effective means of identifying the harmonic patterns generated by different types of nonlinear loads is considered. This paper presents the application of fractal analysis for analyzing the various harmonic current waveforms generated by typical nonlinear loads such as personal computer, fluorescent lights, UPS, oscilloscope, monitor and laser jet printer. The fractal technique provides both time and spectral information of the nonlinear load harmonic patterns. The analysis results shows that the various harmonic current waveforms can be easily identified from the characteristics of the fractal features. This investigation proves that the fractal technique is a useful tool for identifying harmonic current waveforms and forms a basis towards the development of the harmonic load recognition system.

Original languageEnglish
Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems
Volume5
Publication statusPublished - 2004
Event2004 IEEE International Symposium on Cirquits and Systems - Proceedings - Vancouver, BC, Canada
Duration: 23 May 200426 May 2004

Other

Other2004 IEEE International Symposium on Cirquits and Systems - Proceedings
CountryCanada
CityVancouver, BC
Period23/5/0426/5/04

Fingerprint

Fractals
Power quality
Harmonic distortion
Personal computers
Lasers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Umeh, K. C., Mohamed, A., Mohamed, R., & Hussain, A. (2004). Characterizing nonlinear load harmonics using fractal analysis. In Proceedings - IEEE International Symposium on Circuits and Systems (Vol. 5)

Characterizing nonlinear load harmonics using fractal analysis. / Umeh, K. C.; Mohamed, Azah; Mohamed, Ramizi; Hussain, Aini.

Proceedings - IEEE International Symposium on Circuits and Systems. Vol. 5 2004.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Umeh, KC, Mohamed, A, Mohamed, R & Hussain, A 2004, Characterizing nonlinear load harmonics using fractal analysis. in Proceedings - IEEE International Symposium on Circuits and Systems. vol. 5, 2004 IEEE International Symposium on Cirquits and Systems - Proceedings, Vancouver, BC, Canada, 23/5/04.
Umeh KC, Mohamed A, Mohamed R, Hussain A. Characterizing nonlinear load harmonics using fractal analysis. In Proceedings - IEEE International Symposium on Circuits and Systems. Vol. 5. 2004
Umeh, K. C. ; Mohamed, Azah ; Mohamed, Ramizi ; Hussain, Aini. / Characterizing nonlinear load harmonics using fractal analysis. Proceedings - IEEE International Symposium on Circuits and Systems. Vol. 5 2004.
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