2007•Journal of Beijing Union UniversityRequires access

Universal FFT Algorithm Based on DSP and its Application in Harmonic Detection in Grid

Yong Zhang

Abstract

DSP is developing into a mature technology in digital process and digital control,based on which a method of Fast Fourier Transform Algorithm(FFT) is proposed.The algorithm is achieved by assembly language, using the most high-powered processor-TMS320F281x DSP in current control field to carry through the FFT operation of sampling signal,and it can detect all harmonic waves of three-phase voltage and three-phase current in grid,so we can do the harmonic analysis duly.Through the experiment and field work,the precision and high-speed of the algorithm are verified,therefore it can be used as a universal algorithm in harmonic detection.

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Available abstract

Key concepts: Fast Fourier transform, Digital signal processing, Computer science, Harmonic, Digital signal processor, Algorithm, Cooley–Tukey FFT algorithm, Grid