船电技术2025，Vol.45Issue(10)：29-33,5.
加海宁窗的插值基-2FFT船舶电网谐波监测算法仿真与分析
Simulation and analysis of interpolation radix-2FFT ship power grid harmonic monitoring algorithm with hanning window
汪洋1
作者信息
- 1. 中国舰船研究设计中心,武汉 430060
- 折叠
摘要
Abstract
Under the premise of limited computing capacity of the micro-control unit,in order to solve the problem of large error in the harmonic monitoring algorithm of the ship power grid,the 1024-point time-domain decimation-in-time radix-2 FFT(Fast Fourier Transform)mainly adopted at home and abroad is mainly studied.To improve the accuracy of harmonic calculation,by analyzing the three causes of error:aliasing,fence effect and spectral leakage,an improved interpolation radix-2 FFT algorithm with Hanning window is adopted.The classical radix-2 FFT algorithm and the interpolation radix-2 FFT algorithm with Hanning window are modeled and simulated by Matlab,and the accuracy of the improved algorithm is verified by comparison,providing a basis for the selection of algorithms in the harmonic monitoring system.关键词
谐波监测算法/基-2 FFT/加海宁窗的插值基-2FFTKey words
harmonic monitoring algorithm/Radix-2 FFT/interpolated Radix-2 FFT with hanning window分类
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汪洋..加海宁窗的插值基-2FFT船舶电网谐波监测算法仿真与分析[J].船电技术,2025,45(10):29-33,5.
