Title :
Optimal cosine windowed algorithms for harmonic analysis of power system
Author :
Xue, Hui ; Yang, Rengang
Author_Institution :
Dept. of Inf. & Electr. Eng., China Agric. Univ., Beijing, China
Abstract :
The interpolating windowed discrete Fourier transform has been used to eliminate the errors caused by leakage and grid effects of discrete Fourier transform (DFT). The proper selection of window functions is very important. This paper analyzes the leakage effect of windowed DFT, presents a method to obtain optimal cosine window functions, and the corresponding interpolating algorithms. Simulation results show that the algorithms have the character of simple implementation easy analysis and high precision. Therefore, presenting a satisfying tool for precise and practical harmonics analysis in power system.
Keywords :
discrete Fourier transforms; power system harmonics; DFT; discrete Fourier transform; electric power systems; interpolating algorithms; optimal cosine windowed algorithms; power system harmonic analysis; Algorithm design and analysis; Analytical models; Discrete Fourier transforms; Equations; Frequency estimation; Harmonic analysis; Pollution; Power system analysis computing; Power system harmonics; Power system simulation;
Conference_Titel :
Power Engineering Society General Meeting, 2003, IEEE
Print_ISBN :
0-7803-7989-6
DOI :
10.1109/PES.2003.1267385