Binary Scale Time Windows FFT for Harmonic Analysis

Abstract:

Various harmonics exist in the electrical power system, and the harmonics include both integer harmonics and non-integer harmonics. It is hard to analyze all the harmonics accurately. In order to improve the precision of harmonic analysis and the minimum resolution, this paper presents a new algorithm named binary scale time windows FFT based on traditional algorithm.This algorithm considers the calculative time and precision well. The results of the test indicate that this algorithm can both guarantee the accuracy and raise the resolving power in the harmonic analysis without increasing the hardware level and the time of calculation obviously. It can restrain the increasingly serious harmonic pollution in power system effectively.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 2003-2010
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.2003
• Online since: October 2013
• Authors: Feng Zhang, Jue Long Li, Chong Feng Tian, Zong Jie Liu, Hai Feng Ye, Xiu Chen Jiang
• Keywords: Binary Scale Time Windows, FFT, Harmonic

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