2013•Power System and Clean EnergyRequires access

Harmonic Analysis of Recorded Current Wave Based on Rife-Vincent Window

Huaiqing Zhang

Abstract

Windowing and interpolation can inhibit the effects of spectral leakage and fence,and improve the accuracy of the FFT algorithm in harmonic analysis.The paper compares the spectral characteristics of Hanning window and five Rife Vincent window(R_V window) and then succeeds in deducing the corresponding deviation correction formula.A relative error calculation method based on time-domain samples is proposed and used to compare accuracies of harmonic analysis of window function.Simulation and calculation examples have verified that the R_V window interpolation algorithm is correct and has higher accuracy than the Hanning window.

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Available abstract

Key concepts: Window function, Spectral leakage, Window (computing), Fast Fourier transform, Interpolation (computer graphics), Harmonic, Algorithm, Harmonic analysis