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Application of DFT Algorithm on Harmonics Analysis of Power Quality

Wang Yu Li Song  
This paper introduces a power quality analyzer with TMS320F2812 produced by Tl corporate,and analyses the way of continuous signal with DFT,and simulate synchronous and asynchronous amplitude-frequency sampling.In this paper,the calculation of harmonic parameters,based on the traditional Fourier transformalgorithm and the windowed interpolation FFT algorithm in-depth research,thus the non-synchronous sampling of the spectrum caused by leakage and fence effect,greatly enhance the harmonic amplitude value and phase accuracy.
【CateGory Index】: TM711
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