Description: Fast Fourier transform is a larger error, cannot be directly used for electric power
The system harmonic analysis. Error is analyzed in this paper, the leakage of FFT, according to
Jain and Grandke interpolation algorithm proposed a number of cosine window interpolation
The new algorithm, to modify the result of the FFT, greatly improve the calculation accuracy,
Make it suitable for the accurate harmonic analysis of power system. The algorithm are also given in this paper
Simulation examples of harmonic analysis, the results show that different window to calculate
Method of calculation accuracy is different, the calculation precision of the new algorithm improved significantly
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电力系统谐波分析的高精度FFT算法.pdf
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