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Paper Information

Journal:   IRANIAN JOURNAL OF ELECTRICAL AND COMPUTER ENGINEERING (IJECE)   SUMMER-FALL 2004 , Volume 3 , Number 2; Page(s) 111 To 116.
 
Paper: 

THE USE OF FRACTAL ANALYSIS FOR CHARACTERIZING NONLINEAR LOAD HARMONICS

 
 
Author(s):  KINGSLEY C.U., RAMIZI M., AINI H., AZAH M.
 
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Abstract: 

One of the power quality concerns that have received most attention is the problem of harmonics which are generated by widely dispersed single phase nonlinear loads.
Such loads cause harmonic distortion of voltages and currents in a power distribution system. 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 various harmonic current waveforms generated by typical nonlinear loads such as personal computer, fluorescent lights and uninterruptible power supply. 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.

 
Keyword(s): POWER QUALITY, HARMONICS, NONLINEAR LOADS,FRACTAL ANALYSIS
 
References: 
 
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