10-Point DFT and its Application in Power System Harmonic Analysis
In this paper, an efficient algorithm for computing 10-point DFT, radix-10 FFT algorithm for computing10 Superscript textMSubscript text-point DFT and N=L×10 Superscript textMSubscript text-point DFT are presented. FFT is often employed in power systems harmonics analysis even though it is not accurate due to spectral leakage and barrier effect. When N=L×10Superscript textMSubscript text-point DFTs are used to analyze harmonics in power systems, comparing to N=2 Superscript textMSubscript text-point DFTs, very accurate harmonic parameters can be obtained. The simulation results in MATLAB show that the methods are feasible and effective to enhance analysis accuracy.
Cai Suo Zhang
D. L. Li and H. J. Li, "10-Point DFT and its Application in Power System Harmonic Analysis", Advanced Materials Research, Vols. 433-440, pp. 7458-7464, 2012