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2006•Journal of Zhejiang University(Science Edition)Requires access

Estimation of electrical harmonic parameters by using the Interpolated FFT algorithm based on Blackman window.

QI Cai-jun

Open publisher page 9 citations

Abstract

A thorough research on the high-accuracy estimation for the electrical harmonic parameters by using the Interpolated FFT algorithm was conducted.The window type and width are the main factors influencing the analysis precision.After analyzing the common windows and electrical signals,the Blackman window was more suitable for the analysis of electrical signals and the Interpolated FFT algorithm was given as well.Simulation result showed that given the Interpolated FFT algorithm based on Blackman window,the estimation precision of electrical signals' frequencies,amplitudes and phases met the state standard.

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What this paper is about

A thorough research on the high-accuracy estimation for the electrical harmonic parameters by using the Interpolated FFT algorithm was conducted.The window type and width are the main factors influencing the analysis precision.After analyzing the common windows and electrical signals,the Blackman window was more suitable for the analysis of electrical signals and the Interpolated FFT algorithm was given as well.Simulation result showed that given the Interpolated FFT algorithm based on Blackman window,the estimation precision of electrical signals' frequencies,amplitudes and phases met the state standard.

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OpenAlex reports 9 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A thorough research on the high-accuracy estimation for the electrical harmonic parameters by using the Interpolated FFT algorithm was conducted.The window type and width are the main factors influencing the analysis precision.After analyzing the common windows and electrical signals,the Blackman window was more suitable for the analysis of electrical signals and the Interpolated FFT algorithm was given as well.Simulation result showed that given the Interpolated FFT algorithm based on Blackman window,the estimation precision of electrical signals' frequencies,amplitudes and phases met the state standard.

Key concepts: Fast Fourier transform, Window (computing), Algorithm, Window function, Interpolation (computer graphics), Harmonic, Computer science, Mathematics

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