Harmonic Analysis for Power Systems based on AD-RQEA

doi:10.23940/ijpe.19.06.p21.17021708

Int J Performability Eng ›› 2019, Vol. 15 ›› Issue (6): 1702-1708.doi: 10.23940/ijpe.19.06.p21.17021708

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Harmonic Analysis for Power Systems based on AD-RQEA

Rui Zhang^a,*, Wanying Jiang^a, Wei Li^a, Hui Gao^b, and Qichao Song^b

a School of Automation, Harbin University of Science and Technology, Harbin, 150080, China
b School of Electrical and Information Engineering, Heilongjiang Institute of Technology, Harbin, 150050, China

Submitted on ;
Contact: * E-mail address: zr_gh@sina.com
Supported by:
This research was supported by the Application Technology Research and Development Projects of Harbin City, China (No. 2015RAXXJ036), Heilongjiang Province Science Foundation of China (No. F2016027), and Applied Fundamental Research Plan Project of Sichuan Province of China (No. 2015JY0234).

Abstract

Abstract: High precision harmonic analysis in electric power systems is the precondition to evaluate the power quality of power grids and to control the harmonic of power grids. The fast Fourier transform (FFT) algorithm has shortcomings such as spectrum leakage and the fence effect in harmonic analysis, resulting in lower accuracy. Thus, a power harmonic analysis method based on atomic decomposition combined with the read-coded quantum evolutionary algorithm (AD-RQEA) is proposed. The core of AD-RQEA is to construct an atom library according to the characteristics of harmonic signals and to optimize feature parameters of atoms using AD-RQEA. Finally, optimal matching atoms are adaptively chosen to reconstruct voltage signals. The comparison tests show that the proposed method has high accuracy, and the effectiveness and practicability of this method are verified.

Key words: harmonic analysis, atomic decomposition, real-coded quantum evolutionary algorithm, FFT

Rui Zhang, Wanying Jiang, Wei Li, Hui Gao, and Qichao Song. Harmonic Analysis for Power Systems based on AD-RQEA [J]. Int J Performability Eng, 2019, 15(6): 1702-1708.

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